Maritime English
Maritime English Glossary
647 professional maritime english terms with definitions, pronunciation and examples. Learn what each term means — free with Termify.
A
- O que e Abandonar o navio? A formal command given by the Master ordering crew and passengers to evacuate the vessel immediately due to grave danger...
- O que e Abortar Fixação de Posição? Command to discontinue planned position fixing process when results are unreliable or time-critical manoeuvre takes prio...
- O que e Absorção de Energia do Fende? Capacity of berth fender system to absorb kinetic energy of vessel at specified berthing velocity without exceeding desi...
- O que e Acolchoamento de tanque? Process of introducing inert gas (often nitrogen) into the tank vapor space to maintain safe conditions, prevent air ing...
- O que e Acumulação Estática? The buildup of electrical charge on surfaces in a tank or pipeline during cargo transfer, creating a risk of discharge a...
- O que e Acusar recebimento da posição? Instruction to confirm that a vessel’s reported navigational position has been received and understood.
- O que e Acuse de recebimento da mensagem? Formal confirmation of receipt of a transmitted communication, usually by repeating essential content.
- O que e Acuse de recebimento de socorro? Formal confirmation of receipt of a distress message, typically using prescribed wording as per SMCP and ITU RR.
- O que e Adiante muito devagar? Engine telegraph order instructing propulsion at the lowest possible speed ahead, used for delicate manoeuvring or conge...
- O que e Ajuste de Velocidade do Motor? The selected rotational speed at which a ship’s engine is set to operate, typically determined by bridge orders for mane...
- O que e Alarme da Sala de Máquinas? An audible and/or visual signal in the engine room, indicating an abnormal or hazardous condition in machinery, systems,...
- O que e Alarme de emergência? The shipwide audible and visual signal indicating a serious emergency; activates muster or evacuation as per muster list...
- O que e Alarme de evacuação? A specific alarm signal used to order immediate evacuation of the vessel or designated areas due to critical emergency.
- O que e Alarme de Excesso? An automatic safety device that activates an audible and visual alert when liquid in a tank approaches a critical high l...
- O que e Alarme de incêndio? An audible and/or visual signal, automatically or manually triggered, alerting crew to the presence of fire and the need...
- O que e Alarme de incêndio? An audible and/or visual signal system activated manually or automatically to warn crew of fire and trigger the ship’s e...
- O que e Alarme de inundação? An audible and/or visual alarm triggered automatically or manually when water ingress is detected in compartments below ...
- O que e Alarme de Início de Guarnição? An electronic or mechanical alarm that notifies the bridge team when it is time to initiate the wheel-over manoeuvre, us...
- O que e Alarme de monitoramento de integridade? An alarm signaling a failure or inconsistency detected in the position integrity monitoring system, requiring immediate ...
- O que e Alarme de Nível Alto? A critical warning system that alerts crew when the liquid in a tank approaches a designated high point, preventing over...
- O que e Alarme de Profundidade da Água? An alert activated when the measured depth beneath a vessel approaches a pre-set minimum, used to avoid grounding.
- O que e Alarme de sequenciamento de waypoints? An alarm on navigation systems indicating failure to automatically advance to the next waypoint as programmed in the voy...
- O que e Alarme de Sincronização do Leme? An alert indicating a mismatch between helm (steering wheel) position and rudder angle, requiring immediate attention to...
- O que e Alarme de Velocidade de Ré? An alarm triggered when a vessel's sternway (reverse movement) exceeds a preset speed threshold, alerting crew to possib...
- O que e Alarme de Água de Porão? An alert indicating the presence of excess water in the bilge spaces, often requiring automatic or manual pumping, and i...
- O que e Alarme de Ângulo de Deriva? Navigation sensor alert triggered when vessel’s leeway or sideslip exceeds predefined safe threshold relative to track.
- O que e Alarme do Sistema de Governo? A warning signal indicating malfunction or abnormal condition in the steering gear system, requiring immediate crew inve...
- O que e Alerta de Condição Whiteout? A warning indicating that visual navigation is severely hindered due to uniformly diffuse light caused by snow, ice, or ...
- O que e Alerta de Crista de Pressão? A notice regarding the formation or presence of elevated ice ridges on sea ice, which may pose navigational hazards to v...
- O que e Alerta de Derrame de Óleo? Immediate notification that mineral oil is observed on sea surface requiring containment and reporting under MARPOL 73/7...
- O que e Alerta de Frente Ocluído? Notification that a mature occluded front will pass the vessel’s vicinity, often associated with variable winds and squa...
- O que e Alerta de Onda de Frio? An official warning issued to inform mariners of an expected period of unusually low temperatures, which may affect vess...
- O que e Alerta de socorro? An internationally recognized signal, transmitted by GMDSS or VHF, indicating grave and imminent danger requiring immedi...
- O que e Alerta de Tempestade Tropical? An official advisory issued to warn vessels that a tropical storm may affect the area within 48 hours. Mariners should c...
- O que e Alerta Linha de Rajada? Notification that organised line of squalls with gusts ≥ 34 kn is approaching, often ahead of cold front.
- O que e Alimentação de Óleo do Cilindro? The controlled supply of lubricating oil to the main engine cylinder liners, essential for reducing friction and wear, a...
- O que e Alinhamento da Linha Central do Canal? The practice of steering a vessel so that its longitudinal axis remains aligned with the designated navigational centrel...
- O que e Alinhamento de Faróis de Enfiamento? The navigation technique of steering a vessel so that two range lights, one behind the other, appear vertically aligned,...
- O que e Alinhamento de Faróis Guia? The process of navigating a vessel by visually aligning two or more fixed leading lights (range lights), ensuring the ve...
- O que e Alta voltagem? Warning regarding electrical systems or cables carrying dangerous voltage levels, requiring safety precautions.
- O que e Altere o rumo? Instruction to change the vessel’s current heading in order to avoid danger or comply with traffic management.
- O que e Altura livre aérea? The vertical distance from the waterline to the highest point of the vessel, used to determine safe passage under bridge...
- O que e Altura livre sob a ponte? The vertical distance between the lowest part of the bridge span and the highest point of the vessel, ensuring safe pass...
- O que e Alívio de explosão do cárter? A safety device fitted on engine crankcases that vents pressure and flame in the event of a crankcase explosion, reducin...
- O que e Amostragem de carga? Procedure for collecting representative samples of cargo for quality analysis, documentation, and regulatory compliance.
- O que e Amostragem de Fundo? The process of collecting liquid samples from the bottom of a cargo tank to check for water, contaminants, or stratifica...
- O que e Amostragem de vapor? Procedure to collect representative samples of vapour from tanks or lines for safety, quality, or regulatory compliance ...
- O que e Amostragem de vapor? Procedure to collect samples of vapour from tanks or lines for safety, quality, or regulatory compliance testing.
- O que e Aparelho respiratório de circuito fechado? A self-contained device that provides breathable air in hazardous or smoke-filled environments, preventing the inhalatio...
- O que e Aplicação do Bow Thruster? Use of bow thruster to generate lateral force at bow for precise positioning or counteracting environmental forces durin...
- O que e Aproximação de Frente Fria? A message or forecast that a cold front is moving into the operational area, often accompanied by abrupt wind shift, fal...
- O que e Aproximação de Frente Quente? Indication that a warm air mass front is advancing toward the vessel’s area, typically bringing steady rain and veering ...
- O que e Aquecedor de Óleo Térmico? A unit designed to heat thermal oil used as a medium for transferring heat to fuel tanks, cargo systems, or other shipbo...
- O que e Aquecimento da Carga? The controlled application of heat to cargo in tanks to maintain pumpability and product quality, especially with heavy ...
- O que e Aquecimento do Propulsor? A procedure where thrusters are gradually powered up and tested before being engaged for manoeuvring or station keeping.
- O que e Armário de controle de danos? A secured storage area on board for tools, plugs, and equipment needed for rapid response to hull damage, flooding, or e...
- O que e Armário de emergência da ponte? A secured storage location on the bridge containing emergency gear such as fire axes, breathing apparatus, and communica...
- O que e Armário de incêndio? A designated compartment or cabinet onboard containing firefighting equipment such as hoses, nozzles, and personal prote...
- O que e Arrasto de Fluxo Viscoso? The resistance experienced by a vessel as it moves through water due to the fluid’s internal friction, affecting speed a...
- O que e Atmosfera do tanque? The composition and quality of gases present inside a cargo tank, monitored to ensure safety from flammable, toxic, or i...
- O que e Atracação com Vento Forte? A berthing operation performed in high wind conditions, requiring specific techniques, increased tug assistance, or thru...
- O que e Atualização de Corrente de Maré? New information on rate and set of tidal current issued by VTS or hydrographic authority for local area.
- O que e Aumente a velocidade? Instruction to make more way through the water to meet traffic, tidal, or berth scheduling requirements.
- O que e Auxílio Eletrónico de Atracação? Shore-based microwave or laser sensor system providing real-time range, closing speed, and alignment data to approaching...
- O que e Avaliação de danos? A structured evaluation of damage sustained by a vessel after an incident, including extent, location, and impact on sea...
- O que e Avaliação de sloshing? Evaluation of the movement and impact of liquid cargo within a tank caused by ship motion, to assess risks of structural...
- O que e Avaliação do Deslocamento da Hélice? Evaluation of sideways movement (walk) caused by propeller rotation while making headway or sternway at low speed.
- O que e Avaliação do Diâmetro Tático? Assessment of the vessel’s maximum transverse distance travelled during a turning circle with constant rudder angle at f...
- O que e Aviso de Acumulação de Gelo? Notice that superstructure icing rate exceeds 2 cm h⁻¹ due to freezing precipitation or spray, requiring anti-icing meas...
- O que e Aviso de Altura de Onda? A warning issued to vessels regarding anticipated significant wave heights exceeding safe operating limits.
- O que e Aviso de Atividade de Relâmpagos? Alert issued when frequent cloud-to-ground or cloud-to-cloud lightning poses immediate risk to deck personnel and sensit...
- O que e Aviso de Chuva Congelante? GMDSS forecast message indicating super-cooled rain likely to freeze on contact, causing rapid ice accretion on decks an...
- O que e Aviso de Chuva Forte? GMDSS meteorological message signalling precipitation rate ≥ 50 mm in 6 h, causing reduced visibility and risk of runoff...
- O que e Aviso de Chuva Torrencial? An official advisory issued to warn of intense and prolonged rainfall that may severely reduce visibility and increase r...
- O que e Aviso de Ciclone? Official alert issued when a tropical cyclone with gale-force winds is expected to affect a maritime area within 24 hour...
- O que e Aviso de Corrente Costeira? Official notice to mariners about significant changes, hazards, or anomalies in coastal water currents affecting safe na...
- O que e Aviso de Corrente de Superfície? Official MSI or VHF message advising mariners that abnormally strong or variable surface currents exist in a defined are...
- O que e Aviso de Formação de Névoa? An official advisory indicating that atmospheric conditions are favorable for mist development, which may lower visibili...
- O que e Aviso de Furacão? A formal announcement by maritime or meteorological authorities indicating that hurricane conditions, including very hig...
- O que e Aviso de Gelo Fragmentado? Message issued by ice services or VTS indicating dangerous concentrations of brash ice likely to impede manoeuvring or c...
- O que e Aviso de Growler Ice? Alert indicating presence of small, dense glacial ice blocks (growlers) scarcely visible above water, posing collision r...
- O que e Aviso de Mancha de Névoa? Notice to mariners of localised fog banks that may suddenly reduce visibility and require speed reduction or additional ...
- O que e Aviso de Maré de Tempestade? An official alert issued to vessels regarding an abnormally high rise of sea level due to meteorological effects, especi...
- O que e Aviso de navegação? Official broadcast of hazards, obstructions, or operational restrictions that may affect safe navigation.
- O que e Aviso de navegação? A formal broadcast or message informing mariners of navigational hazards, new obstructions, or significant changes in ch...
- O que e Aviso de Neve Intensa? Forecast advising imminent heavy snowfall reducing visibility below 0.5 nm and affecting mooring or channel transit.
- O que e Aviso de Nevoeiro Denso? Warning issued when visibility expected below one-half nautical mile due to thick fog, requiring sound signals and speed...
- O que e Aviso de Nevoeiro Marítimo? Notice that horizontal visibility at sea will fall below one kilometre due to advection or radiation fog.
- O que e Aviso de Névoa Congelante? An advisory issued to warn vessels of freezing fog conditions, which may cause ice accumulation on decks, equipment, and...
- O que e Aviso de Passagem de Frente? A formal advisory issued by maritime authorities warning vessels of an approaching frontal system likely to bring sudden...
- O que e Aviso de Ressaca de Tempestade? Warning that abnormal sea-level rise due to cyclonic surge is expected in coastal area, requiring preventive mooring and...
- O que e Aviso de Spray Congelante? GMDSS meteorological warning that sea spray will freeze on exposed surfaces causing topside icing hazards.
- O que e Aviso de Tempestade? A formal notification from maritime or meteorological authorities indicating strong winds, heavy seas, and potentially h...
- O que e Aviso de Tufão? Highest-level tropical-cyclone warning issued by JMA or PAGASA for winds ≥64 kt, heavy seas and extreme storm surge thre...
- O que e Aviso de Vendaval? A warning issued to mariners when sustained winds of Beaufort Force 8 or higher (34–40 knots) are expected or occurring ...
- O que e Aviso de Visibilidade Reduzida? A formal alert issued to vessels when fog, mist, precipitation, or other factors are expected to lower visibility below ...
- O que e Aviso de Zona de Interação? Advisory issued when proximity of shallow banks or passing vessels may cause hydrodynamic interaction affecting steering...
- O que e Aviso transmitido? A formal message disseminated by VTS, harbour authority, or vessels to alert all ships in an area about navigational haz...
B
- O que e Bacia de Manobra do Canal? A designated widened section of a navigational fairway, specifically constructed to allow vessels to safely turn or chan...
- O que e Baixo Nível de Água da Caldeira? A hazardous boiler condition where water level falls below the minimum safe mark, risking tube overheating, boiler damag...
- O que e Baliza de posição de emergência? A radio beacon, such as an EPIRB, used to transmit the position of a vessel or survivor in distress to search and rescue...
- O que e Bandeja de Gotejamento? A shallow container placed beneath piping joints or hoses to catch leaks or drips during cargo transfer operations and p...
- O que e Barreira de contenção? A floating barrier deployed to contain and control oil or chemical spills on the surface of the water.
- O que e Bloqueio de vapor? A condition where vapor forms in a pipeline or pump, blocking the flow of liquid cargo and potentially disrupting operat...
- O que e Bloqueio do Telégrafo de Máquinas? A failure or obstruction in the engine telegraph system, preventing bridge orders from being transmitted to the engine r...
- O que e Boletim de Risco de Tromba d’Água? An official maritime bulletin advising of the risk of waterspout formation in a specific sea area, requiring heightened ...
- O que e Boletim de Tempestade Severa? Official GMDSS warning message indicating winds ≥ Beaufort 10, heavy seas and reduced visibility within forecast area.
- O que e Boletim meteorológico? Official broadcast of weather conditions, warnings, and forecasts relevant to maritime navigation.
- O que e Boletim Meteorológico GMDSS? Scheduled meteorological broadcast issued via NAVTEX, HF, MF or satellite under the Global Maritime Distress and Safety ...
- O que e Bomba de esgotamento? A pump specifically used for removing remaining cargo or residues from tanks, pipelines, or bilges after main discharge ...
- O que e Bomba de espera remota? A pump located outside the machinery space, operated remotely to provide emergency or backup fluid transfer capability.
- O que e Bomba de incêndio? A fixed or portable pump designed to supply water to firefighting systems throughout the vessel, essential for controlli...
- O que e Bomba de Incêndio? A dedicated pump used to supply seawater to fire hydrants and hoses on board for firefighting operations.
- O que e Bomba de Lastro Automática? An automatic mode setting on the ballast pump, enabling the pump to start and stop based on tank level sensors or a cent...
- O que e Bomba de Lubrificação de Reserva? A backup pump in the engine room that automatically or manually provides lubrication oil flow if the main pump fails, en...
- O que e Bomba de porão de emergência? A portable or dedicated pump used to remove water from the bilge in case of flooding or main pump failure.
- O que e Bomba de Resfriamento com Água do Mar? A pump supplying seawater to coolers for cooling main and auxiliary machinery, essential for temperature regulation and ...
- O que e Braço de Carregamento? A movable articulated mechanical arm used at terminals to transfer liquid cargo between ship and shore through the cargo...
- O que e Brigada de incêndio? A designated team trained and assigned to respond to onboard fires and operate firefighting equipment as per muster list...
- O que e Brigada de incêndio? A team of designated crew members trained and equipped to respond immediately to fire alarms, undertake firefighting, an...
- O que e Brigada de incêndio? A designated team of trained crew members equipped to respond immediately to fire alarms, conduct firefighting, and perf...
- O que e Busca em quadrante? A systematic search pattern, typically used in SAR operations, covering four quadrants from a datum point to locate pers...
- O que e Bóia apagada? A navigation buoy whose light is inoperative or not functioning, presenting a hazard at night.
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- O que e Cabo de reboque de emergência? A strong wire or rope rigged at bow or stern, readily accessible for emergency towing if the vessel becomes disabled.
- O que e Caderno de manobras da ponte? A logbook kept on the bridge for recording all manoeuvring orders, engine telegraph movements, helm commands, and critic...
- O que e Calado requerido? Request or statement of the minimum water depth needed for safe passage of a vessel based on its loaded draft.
- O que e Caldeira de Gás de Escape? A heat recovery unit using main engine exhaust gases to generate steam for shipboard heating or auxiliary systems, integ...
- O que e Canal de guarda? A designated VHF radio frequency used for emergency, distress, or mandatory communication monitoring.
- O que e Canal dezesseis? The international VHF radio distress, safety, and calling channel (156.8 MHz) monitored at all times by ships and shore ...
- O que e Canal dezesseis? The international VHF radio distress, safety, and calling frequency (156.8 MHz) mandatory for all seagoing vessels to mo...
- O que e Canal ocupado? Notification that the selected VHF working channel is congested with traffic, making immediate communication difficult.
- O que e Canal ocupado? Notification that a fairway or navigation channel is temporarily blocked or being used by another vessel, requiring othe...
- O que e Cancelar aviso? Official notification that a previously issued warning is no longer in effect.
- O que e Cancelar aviso? Formal message to withdraw or annul a previously issued navigational, meteorological, or safety warning that is no longe...
- O que e Cancelar mensagem? Official notification that a previously transmitted message or warning is no longer valid or has been withdrawn.
- O que e Cancelar socorro? Official transmission that a previous distress message is no longer valid, usually after the situation has been resolved...
- O que e Capacidade de Trava do Guincho? Certified static load that a mooring-winch brake can safely withstand without paying out when lines are under tension.
- O que e Capacidade de Tração do Cábrestante? Maximum continuous line-pull that a deck capstan can exert when hauling mooring lines at rated speed.
- O que e Carga perigosa? Any substance or material that poses a significant risk to health, safety, or property during transport by sea, as defin...
- O que e Carregamento Fechado? A cargo transfer method where tanks are loaded via closed systems to prevent vapour emissions, following ISGOTT and MARP...
- O que e Carregar por cima? A cargo operation method in which the slops or residues in a tank are allowed to settle and then new cargo is loaded abo...
- O que e Carta de Pressão à Superfície? Synoptic weather map depicting isobars and pressure systems at mean sea level, used for routeing decisions.
- O que e Ciclo de Feedback de Direção? A control system that continually monitors rudder position and vessel heading to automatically correct steering and main...
- O que e Coeficiente de Eficiência do Propulsor? A calculated ratio indicating how effectively a vessel’s thruster converts power input into thrust for manoeuvring opera...
- O que e Coeficiente de Momento da Proa? A calculated factor describing the turning moment generated by the bow, crucial for assessing vessel manoeuvrability dur...
- O que e Coletor de Carga? A pipe assembly on a ship’s deck used for connecting shore hoses and controlling the transfer of liquid cargo to or from...
- O que e Combustível de Alta Pressão? Fuel oil pressurized to high levels for injection into main engine cylinders, delivered by high-pressure pumps as specif...
- O que e Compartilhamento de Carga do Motor? The process of distributing electrical or mechanical load evenly between two or more engines or generators operating in ...
- O que e Compartimento alagado? A watertight section of a vessel that has unintentionally filled with seawater due to hull breach or system failure.
- O que e Compatibilidade de carga? Assessment of whether different cargoes can be safely loaded, carried, or stored together without risk of dangerous chem...
- O que e Compensação da Densidade da Água? The adjustment made to vessel loading or draught calculations to account for local water density, affecting buoyancy and...
- O que e Compensação de Atraso de Comando? Systematic adjustment made to navigation or machinery commands to account for time lag between order and vessel response...
- O que e Compensação do Momento de Guinada? Adjustment of rudder angle, thruster output, or tug forces to counteract undesired yawing moments during low-speed manoe...
- O que e Completar carga? The final stage of tank filling during cargo loading, requiring slow rates and careful monitoring to prevent overfilling...
- O que e Compressor de ar de partida? A compressor that supplies high-pressure air for starting main and auxiliary engines, essential for engine readiness and...
- O que e Comunicar dano? Instruction to inform relevant authorities or stations of any structural, mechanical, or environmental damage sustained,...
- O que e Comunicar incêndio? A prompt or instruction to immediately communicate the occurrence, location, and extent of a fire on board or ashore, us...
- O que e Comunicação de socorro? Transmission of information regarding a distress situation, including distress calls, messages, and subsequent coordinat...
- O que e Comunicação de Socorro? Radio transmission used to indicate that a vessel or person is in grave and imminent danger requiring immediate assistan...
- O que e Concentração de Gelo Marinho? A measure (usually in tenths) of the area of a sea region covered by ice, provided in ice bulletins to support safe navi...
- O que e Conclusão do exercício? Formal declaration that a safety or emergency drill has been carried out as scheduled and all required actions are compl...
- O que e Conclusão do exercício? Confirmation that a safety, fire, or emergency response drill has been carried out and all required actions are complete...
- O que e Conexão de mangueira? The act of securing cargo hoses between ship and shore, or between tanks and manifolds, ensuring a leak-free and safe ca...
- O que e Conexão de Rebocador de Escolta? The established secured line or method by which an escort tug is physically connected to a vessel, typically for control...
- O que e Conexão piloto ativa? An active data connection port on the bridge that provides real-time navigational data from the ship's ECDIS or AIS syst...
- O que e Confirmação de âncora suspensa? The formal notification to the bridge or engine room that the anchor is clear of the seabed and ship is free to maneuver...
- O que e Confirme a posição? Request or instruction to verify and report the current location of a vessel, typically in latitude and longitude.
- O que e Confirme o rumo? A request or instruction to verify and state the vessel’s current or intended navigational course, usually in degrees tr...
- O que e Confirme o rumo? Instruction to verify and report the direction of an object or navigational aid from the vessel, usually in degrees rela...
- O que e Conformidade com a Linha de Carga? The act of ensuring that a vessel's draft and freeboard remain within limits set by the assigned Plimsoll mark and inter...
- O que e Contador de rotações do eixo? A device or system that records the number of revolutions of the propulsion shaft, providing critical speed and distance...
- O que e Contato com Painel de Defensas? The point or process where the vessel's hull makes contact with the berth fender panel, usually monitored to avoid struc...
- O que e Conteúdo de Calor do Oceano? Measure of thermal energy stored in the upper ocean layers, used to assess cyclone potential and climate trends.
- O que e Continue ouvindo? Instruction to maintain a listening watch on a specified VHF channel for further communication or safety messages.
- O que e Continue ouvindo? Instruction to keep monitoring a specified VHF radio channel or other communication line for further traffic or safety m...
- O que e Controle da Rota de Aproximação? Continuous monitoring and adjustment of a vessel’s approach trajectory to the berth, ensuring a smooth, controlled entry...
- O que e Controle de danos? The procedures and measures to limit, manage, or repair damage on board, especially after collision, flooding, fire, or ...
- O que e Controle de Desvio Lateral? Active steering or thruster management to prevent a vessel from swinging away (sheering off) from its intended track or ...
- O que e Controle de inundação? Procedures and systems used to limit, contain, and remove water ingress after hull damage or compartment flooding.
- O que e Controle de inundação? Actions and onboard systems used to limit, isolate, or remove flooding in compartments, such as watertight doors, pumps,...
- O que e Controle de Momento de Arfagem? The regulation of longitudinal pitching moments of a vessel, using ballast or thrusters, to ensure stability and reduce ...
- O que e Controle de recuo da âncora? The controlled paying out of anchor chain in reverse (walkback) under power, used for precise anchor positioning or retr...
- O que e Controle de Vapor? System and procedures used to contain, monitor, and safely manage vapours generated during loading or discharging of car...
- O que e Controle de viscosidade? The process of monitoring and adjusting the viscosity of liquid cargo, often by heating or blending, to ensure efficient...
- O que e Controle do Motor Principal? The central console or system used to monitor and operate the ship’s main propulsion engine, including remote start, sto...
- O que e Controlo da Taxa de Rumo? Autopilot or manual feedback setting that governs how rapidly the vessel’s heading may change, expressed in degrees per ...
- O que e Controlo do Movimento de Surge? Management of longitudinal oscillations of vessel while moored, using winch tension adjustments or tug assistance to pre...
- O que e Coordenadas confirmadas? Affirmation that the provided position or waypoint coordinates are checked and verified as correct, usually before repor...
- O que e Corrente Transversal de Canal? Lateral water flow across a dredged channel causing set and drift that must be compensated during navigation.
- O que e Correspondência pública? Telecommunications service on board for the exchange of messages between ship and shore for public or commercial use.
- O que e Correção de Viés de Giro? The adjustment made to compensate for a vessel’s natural tendency to turn more easily in one direction due to hull desig...
- O que e Correção do empuxo transversal? The adjustment applied to helm or engine orders to compensate for the sideways force exerted by a propeller, especially ...
- O que e Correção do Ângulo de Antecipação? Adjustment applied to ship’s heading to offset predicted set and drift so that actual track leads planned approach line.
- O que e Corrigir a guinada? Helm order given to check the vessel’s swing and prevent further turning, typically after a large rudder movement.
- O que e Corte de Cilindro? A control action or device used to disable fuel supply to a cylinder, usually for maintenance or troubleshooting, while ...
- O que e Corte de combustível de emergência? A safety device or procedure for rapidly stopping fuel supply to machinery or tanks in case of fire or other emergencies...
- O que e Crista de Alta Pressão? An elongated area of high atmospheric pressure, typically associated with calm weather and stable sea conditions.
- O que e Crossover de manifold? A pipe or valve arrangement that allows transfer between different cargo manifolds, enabling flexibility in cargo handli...
- O que e Crossover de manifold? A pipe or valve arrangement that allows transfer between different cargo manifolds for flexible or emergency cargo handl...
- O que e Cálculo da Distância de Avanço? Determination of the longitudinal distance the vessel travels on the original heading during a turn from rudder order un...
- O que e Cálculo da janela de maré? The process of determining the optimal period based on tidal height during which a vessel can safely transit shallow wat...
- O que e Cálculo de Estabilidade? The process of determining a vessel’s ability to remain upright and safe under current loading conditions by calculating...
D
- O que e Descida de emergência? A rapid controlled descent initiated due to onboard emergencies such as fire or loss of cabin pressure, as per SOLAS and...
- O que e Desembarque do prático do porto? The controlled process by which the harbour pilot safely leaves the vessel after completing the inbound or outbound pass...
- O que e Desempenho da bomba? Assessment and monitoring of cargo pump efficiency, capacity, and operation to ensure optimal transfer rates and detect ...
- O que e Desgaseificação? The process of removing hazardous or toxic vapours from tanks by ventilation, rendering them safe for entry, inspection,...
- O que e Desidratação da carga? The process of removing water from cargo, especially crude oil, by settling, heating, or chemical means, to meet quality...
- O que e Desidratação da carga? The process of removing water from cargo, especially crude oil, by settling, heating, or chemical means to meet quality ...
- O que e Desligamento da caldeira auxiliar? The complete stopping of an auxiliary boiler on board, including secure isolation and safety checks, typically during po...
- O que e Desligamento de emergência? Immediate cessation of cargo or bunker transfer operations, activated by crew or terminal, to prevent accidents or mitig...
- O que e Desligamento de Emergência? Immediate cessation of shipboard machinery, system, or cargo operation due to a critical safety or environmental risk.
- O que e Desligamento de Segurança do Motor? An automatic or manual action that stops the engine to prevent damage or hazard when critical parameters exceed safe lim...
- O que e Desligamento do Propulsor? The process of safely reducing thruster power and shutting down the units after manoeuvring or while leaving station kee...
- O que e Deslocamento de Eco de Radar? The adjustment of the radar image to compensate for systematic error or offset, ensuring true target positions correspon...
- O que e Deslocamento de Linha? The process of clearing a pipeline by pushing cargo or liquid out with another medium, usually to ensure product segrega...
- O que e Desvio do Filtro de Combustível? A mechanism allowing fuel to flow around a clogged filter element to maintain engine operation in emergencies, potential...
- O que e Detector de névoa de óleo? A fixed device that continuously monitors and detects oil mist concentrations in engine crankcases to prevent explosions...
- O que e Diferencial do Intercooler? The pressure or temperature difference measured across the intercooler, used to detect fouling or blockages affecting en...
- O que e Distribuidor de Ar de Partida? A mechanical device that controls the timing and sequence of starting air supplied to engine cylinders during main engin...
- O que e Distância de Parada de Emergência? Measured distance travelled from full ahead to complete stop using maximum astern power and rudder amidships.
- O que e Distância livre a ré? The available unobstructed distance behind the vessel, critical for manoeuvring astern.
- O que e Diâmetro do círculo de guinada? The distance perpendicular to the original track between tangents of the vessel’s path when executing a steady-turn at a...
- O que e Dosagem automática da caldeira? A system that automatically injects water treatment chemicals into the boiler feedwater to control scale and corrosion, ...
- O que e Drenagem de carga? Controlled removal of cargo residues or small remaining quantities from tanks and lines after main discharge, ensuring t...
- O que e Drenagem de carga? Removal of cargo residues or small quantities from tanks and pipelines after main discharge, ensuring tanks are as empty...
- O que e Dê passagem? An instruction for a vessel to yield in order to avoid collision and allow another vessel to pass as per the COLREGS.
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- O que e Efeito da área de vento? The influence of the ship’s exposed surface area above the waterline, causing increased drift or leeway under wind press...
- O que e Efeito de almofada da margem? Hydrodynamic phenomenon where water pressure between a vessel and a nearby bank creates a cushion, pushing the bow away ...
- O que e Efeito de sucção da margem? Hydrodynamic phenomenon where a vessel navigating close to a bank experiences a suction force pulling the vessel toward ...
- O que e Efeito Transversal da Hélice? Side-force generated by propeller rotation causing yaw, especially stern kick to port or starboard when powering ahead o...
- O que e Embarcação de sobrevivência da tripulação? A life-saving craft, such as a lifeboat or liferaft, carried on board and designated for the emergency evacuation and su...
- O que e Embarcação seguinte? A vessel which is navigating behind another in the same direction, often in a convoy or traffic lane.
- O que e Embarque do prático? Designated process and location where a maritime pilot embarks or disembarks from a vessel.
- O que e Embarque do prático do porto? The procedure for safely boarding the harbour pilot at sea or at the entrance of the port using a pilot ladder or launch...
- O que e Emissão de vapor? Release of vapours from cargo tanks or lines, controlled and monitored to prevent hazardous exposure, pollution, or brea...
- O que e Energia de emergência? Alternative power source such as a generator or battery supplying essential systems during main power failure.
- O que e Entrando no porto? Statement or report that a vessel is moving towards a port or entering a specific area.
- O que e Entre no canal? Instruction to enter and follow a designated fairway or channel for safe navigation as directed by VTS or port authority...
- O que e Equipe de controle de danos? A designated team trained and tasked to control flooding, fire, or structural damage during emergencies on board.
- O que e Erro de desvio de rota? The perpendicular distance between a vessel's actual position and the planned track line, used for navigation accuracy.
- O que e Erro do giroscópio? An inaccuracy or malfunction of the ship’s gyro compass, resulting in incorrect heading information displayed to bridge ...
- O que e Escada de prático instalada? A pilot ladder correctly secured and deployed over the ship’s side, ready for safe boarding or disembarkation of the pil...
- O que e Escorregador de escape? An emergency evacuation device, usually an inflatable or fabric tube, enabling rapid escape from high decks to safe area...
- O que e Escorregador de evacuação? An inflatable slide fitted to the ship’s side, designed for rapid evacuation of crew and passengers directly into the se...
- O que e Escorregador de evacuação? An inflatable slide or chute deployed to allow rapid evacuation of personnel from ship to liferaft or pier during emerge...
- O que e Escotilha de fuga? A designated exit, usually watertight, providing a safe escape route from enclosed spaces in an emergency.
- O que e Escotilha de Ullage? A small tank opening used for manual ullage measurements and sampling of cargo on oil and chemical tankers.
- O que e Escuta de vigilância? Continuous monitoring of a designated VHF or MF/HF radio channel for traffic, safety, or distress messages, as required ...
- O que e Esquema de Separação de Tráfego? An internationally recognized routing measure that separates opposing streams of vessel traffic by defined lanes and rul...
- O que e Estação costeira? A shore-based VHF or radio station responsible for maritime safety and communication in a designated coastal area.
- O que e Estação de controle de emergência? A designated area from which emergency operations such as firefighting, ventilation control, and communication are coord...
- O que e Estação de controle de incêndio? A designated area on board equipped with firefighting equipment and control panels for managing emergency fire situation...
- O que e Estimativa do Efeito Almofada? An assessment of the air or water pressure that builds up between a vessel and the berth or another vessel, influencing ...
- O que e Estimativa do Efeito de Sucção? The assessment of negative pressure that draws a vessel toward another object or structure during close-quarter manoeuvr...
- O que e Estimativa do Período de Rolamento? An evaluation of the time taken for a vessel to complete one full roll oscillation, essential for stability analysis and...
- O que e Estimativa do Ponto de Giro? Calculation of the vessel’s instantaneous longitudinal pivot point to predict turn characteristics in low-speed manoeuvr...
- O que e Estimativa do ângulo de abatimento? The calculated or visually assessed angle between a vessel’s heading and actual course over ground, caused by wind or cu...
- O que e Estratégia de Controle de Inércia? The procedure and logic used to manage a vessel's inertia during changes in speed or heading, optimizing response time a...
- O que e ETA confirmada? Formal confirmation that a vessel’s estimated time of arrival is correct and accepted by both reporting vessel and autho...
- O que e ETA confirmada? Affirmation that the vessel's estimated time of arrival at a specific point has been checked and is accurate based on cu...
- O que e ETA inalterado? Confirmation that the vessel’s estimated time of arrival remains as previously reported.
- O que e ETA revisada? Notification that a vessel’s previously declared estimated time of arrival has changed and updated information is provid...
- O que e Exercício de abandono de navio? A mandatory exercise in which crew and passengers practice procedures for safely abandoning the vessel and boarding life...
- O que e Exercício de Controle de Poluição? Planned harbour drill simulating oil-spill response, including boom deployment, skimmer operation and multi-agency commu...
- O que e Exercício de inundação? A mandatory exercise in which crew practice responding to flooding, including detection, boundary establishment, and use...
- O que e Exercícios de tiro? Planned military or naval operations in which weapons are fired in designated sea areas, usually requiring ships to keep...
- O que e Exibição de carta vetorial? An electronic navigational chart presented in vector format, enabling interactive layers and detailed, scalable map feat...
- O que e Exibição de sobreposição de radar? The presentation of radar information directly on the electronic chart display, enabling visual correlation of radar tar...
- O que e Expansão de carga? The increase in cargo volume due to temperature rise, requiring careful calculation and monitoring to avoid overflow or ...
- O que e Expansão de Gelo Fixo? Rapid seaward growth of shore-fast ice, restricting manoeuvring space and increasing risk of besetment for vessels.
- O que e Explosão de Potência Incremental? A technique involving small, timed increases in engine or thruster power to control a vessel’s position or heading preci...
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- O que e Faixa de Tráfego Recomendada? A charted route within a traffic separation scheme or recommended track designed for the safe passage of vessels, but no...
- O que e Falha de referência de rumo? A malfunction or loss of accuracy in the ship’s heading reference system, such as gyro or magnetic compass, affecting na...
- O que e Filtro da bomba? A filtering device fitted to the suction side of cargo or ballast pumps to prevent entry of solid particles and debris t...
- O que e Filtro de Ar de Partida? A filter installed in the starting air system to remove contaminants from compressed air before it reaches engine cylind...
- O que e Fixação de posição por satélite? A position determined using satellite navigation signals, typically from systems like GPS or GLONASS, used for precise s...
- O que e Fixação de posição terrestre? A position established by bearings or distances to known land features or aids to navigation, not using satellites.
- O que e Folga do Aileron da Ponte? Minimum air gap required between ship’s bridge wing extremities and shore structures or lock walls during manoeuvring.
- O que e Folga sob a quilha? Vertical distance between the lowest point of a vessel’s keel and the seabed referenced to chart datum; the key safety m...
- O que e Fornecimento de oxigênio de emergência? Portable or fixed supply of medical oxygen available for emergency use by crew or passengers in case of fire, smoke or m...
- O que e Fornecimento de água de emergência? Stored or alternate source of potable water kept on board for survival use in emergencies or after system failure.
- O que e Frequência de socorro? A radio frequency internationally allocated for maritime distress, safety, and calling, such as VHF channel 16 (156.8 MH...
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- O que e Gerador de emergência? A dedicated generator that supplies electrical power to essential systems during main power failure, as required by SOLA...
- O que e Gerador de gás inerte? A shipboard unit that produces inert gas, primarily used on tankers to maintain a non-flammable atmosphere in cargo tank...
- O que e Gerador de Água Doce? A shipboard device that produces potable freshwater from seawater using evaporation and condensation, essential for crew...
- O que e Gerenciamento Automático de Potência? A computerized system on board ships that monitors and optimizes power generation and distribution automatically, ensuri...
- O que e Gestão de recursos da ponte? The effective use and coordination of all available bridge resources—personnel, equipment, and information—to ensure saf...
- O que e Gestão do Queimador da Caldeira? The control and monitoring of burner operations on marine boilers to ensure safe and efficient ignition, combustion, and...
- O que e Giro não confiável? A warning that the vessel’s gyrocompass cannot be trusted for accurate heading information.
- O que e Governo de reserva? An alternative manual or powered system used to control the ship’s rudder if primary steering gear fails.
- O que e Gravação de áudio da ponte? Continuous audio recording of all conversations and alarms on the bridge as mandated by SOLAS for investigation and safe...
- O que e Guarda de escuta? Continuous monitoring of a specified VHF or radio frequency for traffic, safety, or distress calls.
- O que e Gás Inerte? A non-flammable gas used to reduce the oxygen content in cargo tanks, preventing explosion risks during the transport or...
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- O que e Homem ao mar? Emergency indicating that a person has fallen from a vessel into the water and immediate rescue actions are required.
- O que e Homogeneizador de Óleo Combustível? A machine that breaks down asphaltene clusters and ensures uniform mixing of fuel oil, improving combustion quality and ...
- O que e Hélice de passo controlável? A propeller with blades whose pitch can be adjusted while running, allowing for variable thrust and improved maneuverabi...
- O que e Hélice enredada? A condition where the propeller is entangled with ropes, nets, or debris, affecting maneuverability.
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- O que e Iluminação de emergência? Battery-backed or independent lighting automatically activated during main power failure for safe evacuation and emergen...
- O que e Impulso de Empuxo Reverso? A short, controlled burst of astern propulsion to quickly reduce a vessel’s forward speed or stop movement during precis...
- O que e Impulso Reverso do Jato de Água? A manoeuvring action where the direction of waterjet propulsion is reversed, providing astern thrust for stopping or mov...
- O que e Inclinação da Rampa de Atracação? The measured incline of a docking ramp, influencing the safe entry, exit, and support of a vessel during docking or undo...
- O que e Indicador do Motor Principal? An instrument that displays key operational parameters of the main engine, such as load, RPM, and cylinder pressures, ai...
- O que e Informar o prático? Request for instructions, information, or confirmation from the maritime pilot regarding navigation or maneuvers.
- O que e Informe o tráfego? Request for current information about vessel traffic, movement, or congestion in a specific area.
- O que e Informe suas intenções? Request for a vessel to state its planned manoeuvre, course, or operational actions to aid traffic coordination.
- O que e Inspeção de Antiincrustação? Port state or class survey checking hull coating compliance with IMO AFS Convention and assessing biological growth.
- O que e Integração das Superfícies de Controle? The coordinated operation of rudders, stabilisers, and other movable surfaces to achieve optimal vessel steering and sta...
- O que e Interferência detectada? Notification that radio communication is being interfered with by intentional or unintentional signal jamming.
- O que e Interferência frequente? Repeated radio noise or overlapping transmissions that degrade VHF communication quality on the working channel.
- O que e Interferência magnética? Disruption or deviation of magnetic compass readings due to local magnetic fields, ship’s structure, or electrical equip...
- O que e Interruptor de Parada de Emergência? A manually operated control that immediately halts machinery or electrical equipment in emergencies to prevent damage, f...
- O que e Inundação da Sala de Máquinas? The presence or rapid ingress of water in the engine room spaces, posing a serious risk to machinery and vessel safety, ...
- O que e Inventário de Gases de Efeito Estufa? Comprehensive report of CO₂, CH₄ and N₂O emissions from vessel operations for regulatory compliance and environmental ma...
- O que e Isolamento da Sala de Máquinas? The process or system of segregating the engine room from other compartments to contain hazards such as fire, flooding, ...
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- O que e Lastro Segregado? Ballast water held in tanks completely separated from cargo oil and fuel systems, used to ensure no contamination occurs...
- O que e Lava-olhos de emergência? A safety device providing immediate water flow for flushing eyes exposed to chemicals, smoke, or contaminants on board.
- O que e Lavagem com Óleo Cru? The process of cleaning cargo tanks using high-pressure crude oil jets during or after discharge to reduce residual carg...
- O que e Lavagem de linha? Process of cleaning cargo or ballast pipelines by circulating water, air, or another fluid to remove remaining product a...
- O que e Lavagem de linha? Process of cleaning pipelines by circulating water, air, or another fluid to remove product and contaminants.
- O que e Layout do display de comando? The arrangement of navigation and maneuvering information shown on the conning display for optimal bridge decision-makin...
- O que e Leme ao meio? Helm order to bring the rudder to the midships (zero angle) position, aligning with the vessel’s centerline.
- O que e Levantamento da Margem Sob Quilha? Hydrographic assessment confirming minimum clearance between keel and seabed along planned passage meets safety criteria...
- O que e Levantamento de Ullage? The process of measuring the empty space (ullage) in a cargo tank to determine the amount of liquid cargo loaded or rema...
- O que e Liaison do terminal? The appointed person or office responsible for communication and coordination between ship and terminal during cargo ope...
- O que e Liaison do terminal? The person or office responsible for communication and coordination between ship and terminal during cargo operations.
- O que e Limitador de Ângulo do Leme? Device or setting restricting maximum rudder angle to prevent over-steer at speed or protect steering gear.
- O que e Limitação de potência do eixo? A set operational restriction on the maximum shaft power output, typically to comply with EEXI and MARPOL Annex VI energ...
- O que e Limite de Velocidade de Atracação? Maximum allowable approach speed normal to berth to prevent fender overload and structural damage.
- O que e Limite de Velocidade no Porto? The officially published maximum speed permitted for vessels within a designated harbour or port area, set by local auth...
- O que e Limpeza de tanque? Process of removing residues or remaining liquids from cargo tanks after discharge, often using air, inert gas, or pumps...
- O que e Linha de distância eletrônica? A digital tool on radar/ECDIS allowing navigators to set and measure a precise distance from own ship to a selected poin...
- O que e Linha de esgotamento? A dedicated pipeline onboard a tanker used to remove the final residues or small quantities of cargo remaining in tanks ...
- O que e Linha de Gota? A flexible line or pipe used to transfer liquids vertically in a tank, commonly for sampling, loading, or discharging at...
- O que e Linha de guinada? A track line shown on chart or radar which, when crossed, indicates the precise moment to start the wheel-over so that t...
- O que e Linha de marcação eletrônica? A digital navigational tool on ECDIS or radar for plotting and monitoring bearings to fixed or moving targets, improving...
- O que e Linha de retorno? A pipeline connecting cargo manifold or transfer system back to the tank, used for circulation or pressure control durin...
- O que e Linha de retorno? A pipeline connecting the manifold or transfer system back to a tank, used for circulating cargo, line clearing, or pres...
- O que e Linha de índice paralelo? A radar-derived reference line drawn parallel to the vessel's intended track, used to monitor cross-track error by keepi...
- O que e Lista de Máquinas Críticas? An official document or database on board identifying all essential machinery whose failure would significantly affect v...
- O que e Local de emergência? The specific onboard location where an emergency incident—such as fire, flooding, or injury—has occurred and emergency r...
- O que e Luz de navegação de emergência? A portable or fixed battery-powered navigation light used to maintain minimum required navigation signals in the event o...
- O que e Luzes de Alinhamento do Berço? Pair or range of fixed shore lights that provide visual guidance to vessels for centreline alignment during final approa...
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- O que e Mangueira de Carga? A flexible hose designed for transferring liquid cargo between ship and shore, constructed and tested for strength and c...
- O que e Manobra de cabos? The operation of preparing, passing, securing, and tending mooring lines to assist in berthing or unberthing a vessel.
- O que e Manobra de Paragem Rápida? Emergency procedure whereby engine is set full astern and helm hard over to rapidly stop vessel’s forward motion within ...
- O que e Manta antichama? A fire-resistant sheet used to smother small fires or protect personnel during escape, required in galley and accommodat...
- O que e Manta de incêndio? A sheet made of fire-resistant material used to smother small fires by cutting off the oxygen supply, often located in g...
- O que e Mantenha afastado? Instruction to remain at a safe distance from a specified vessel, area, or hazard.
- O que e Mantenha distância? Instruction to maintain a safe distance from a specified vessel, area, or hazard to prevent collision, obstruction, or r...
- O que e Mantenha posição? Instruction to maintain current position, either at anchor or underway, until further orders are received.
- O que e Manual de Plotagem de Radar? A publication or onboard manual containing standardized instructions, techniques, and worksheets for manually plotting r...
- O que e Manutenção de Posicionamento Dinâmico? A control mode where a vessel maintains its heading and position automatically using thrusters and propellers, essential...
- O que e Manutenção de Velocidade Zero? A function in vessel control systems where speed is automatically kept at zero, holding position against wind, current, ...
- O que e Manutenção do Turboalimentador? Scheduled inspection, cleaning, and servicing of the engine turbocharger to ensure optimal performance and prevent break...
- O que e Manômetro de Pistão? A pressure measurement device using a piston and cylinder assembly, typically used to calibrate pressure systems on tank...
- O que e Marca de água segura? IALA buoyage mark indicating there is navigable water all around the mark.
- O que e Marcador de Distância de Aproximação? Painted, lit, or electronic reference indicating remaining longitudinal distance to berth face during final approach.
- O que e Margem de calado dinâmico? An additional draught margin included to account for dynamic effects such as squat, trim, and vessel movement in shallow...
- O que e Margem de efeito squat? The additional draught margin applied to account for the increased draught of a vessel due to the squat effect in shallo...
- O que e Mayday Relay? A distress message transmitted by a vessel or station on behalf of another vessel, aircraft, or person in grave and immi...
- O que e Medida Fechada? A method of measuring tank levels or taking samples without exposing tank contents to the atmosphere, using closed devic...
- O que e Medidor de radar? Use of radar technology to measure tank level, ullage, or interface without contact, widely used for precise monitoring ...
- O que e Medição Doppler Acústica? A navigational process using Doppler sonar to measure vessel speed and direction relative to water, crucial for precise ...
- O que e Mestre de Carregamento? The senior person responsible for supervising all cargo operations on board a tanker during loading, ensuring safety, co...
- O que e Mistura de Carga? The controlled mixing of different cargoes or grades in a tank to achieve a specified product quality or specification, ...
- O que e Modelo de Alocação de Empuxo? A computational approach for optimally distributing propulsion thrust among multiple thrusters to achieve desired vessel...
- O que e Modo de Controle na Ponte? A mode in which the propulsion and critical machinery are operated directly from the bridge, with command transferred fr...
- O que e Modo de Cálculo do Deslizamento? A navigational mode where a vessel’s slip—the difference between theoretical and actual movement—is monitored and calcul...
- O que e Modo de Estabilização de Taxa? Autopilot setting that dampens oscillations by keeping rate of turn constant once a target value is reached during manoe...
- O que e Modo de Manobra por Joystick? A control setting that allows a vessel to be steered and positioned using a joystick, integrating thrusters and main pro...
- O que e Monitor de Descarga de Óleo? An electronic device used to measure and control oil content in discharged water, ensuring compliance with MARPOL and po...
- O que e Monitoramento da integridade da posição? Continuous verification of the reliability and accuracy of the ship’s position as provided by navigation systems.
- O que e Monitoramento de tensões? Continuous assessment of ship or tank structure for stress levels, especially during cargo operations, to ensure limits ...
- O que e Monitorização da Tensão de Amarração? Real-time supervision of static and dynamic loads on mooring lines to maintain safe tension limits under environmental f...
- O que e Monitorização do Ângulo de Deriva Lateral? Continuous observation of vessel’s lateral drift angle relative to track to ensure safe approach trajectory during docki...
- O que e Movimentar para ré? Order or report indicating the vessel is moving, or must move, backward relative to its heading.
- O que e Mudança de Cabeça do Rebocador? The coordinated operation in which a tug alters its line connection point or position to adapt to new towage requirement...
- O que e Mudança de Trim Hidrostático? Change in a vessel’s longitudinal trim resulting from variations in hydrostatic forces due to ballast, cargo, or water d...
- O que e Mude de canal? Instruction to switch VHF radio communications from one designated channel to another for operational or traffic managem...
- O que e Máquina Butterworth? A mechanical rotating cleaning device used for washing and gas freeing ship cargo tanks using pressurized jets of water ...
- O que e Método de índice paralelo? A radar navigation technique in which fixed radar echoes are kept on predetermined parallel lines to verify the vessel r...
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- O que e Navio de escolta? A vessel assigned to accompany another ship for navigational assistance, safety, security, or regulatory compliance in p...
- O que e No local? Statement indicating that the vessel, aircraft, or rescue unit has arrived at the position of an incident or casualty.
- O que e Notificação de Impacto Ambiental? Formal notification detailing projected ecological effects of vessel operations or construction works, issued for regula...
- O que e Nível do Tanque Desarator? The measured height of water within the deaerator tank, critical for ensuring proper removal of dissolved gases from boi...
- O que e Número de pessoas? Total count of persons (crew and passengers) on board, often requested for safety or SAR purposes.
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- O que e Observação de Onda de Calor? Pre-warning by meteorological authority that sustained high air temperatures are likely within 48 h, possibly affecting ...
- O que e Observação Meteorológica do Navio? Recorded meteorological observations from ships, submitted to authorities or meteorological agencies for forecasting and...
- O que e Obstrução relatada? Notification that a physical hazard, such as a wreck, buoy, or floating object, has been observed in a navigable area, r...
- O que e Obstrução reportada? Notification that a hazard, such as a floating object or wreck, is present and may endanger navigation.
- O que e Operação concluída? Notification that a particular port, cargo, or navigational operation has been fully finished.
- O que e Operação de Baixa Carga? Operating main engines or generators at reduced output, often during harbor stay or maneuvering, requiring special monit...
- O que e Operação de Inertização? The process of introducing inert gas into cargo tanks to reduce oxygen concentration, preventing flammable mixtures duri...
- O que e Operação do soprador de fuligem? The process of using a soot blower system to remove accumulated soot from boiler tubes or exhaust gas economizers, ensur...
- O que e Operações de amarração? All procedures related to securing or unmooring a vessel to or from a berth, buoy, or anchorage.
- O que e Orçamento de Energia de Atracação? The total kinetic energy allowed for a vessel to safely berth, accounting for mass, speed, and fender capacity to preven...
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- O que e Painel de controle de propulsão? The main interface on the bridge or in the engine room for controlling the vessel’s propulsion system, including speed, ...
- O que e Painel de Detecção de Gás? A monitoring system that displays real-time readings from gas detectors, providing alarms if hazardous or flammable gas ...
- O que e Painel de incêndio da ponte? A control panel located on the bridge showing status, zones, and alarms for the ship’s fire detection and suppression sy...
- O que e Painel de telemetria do motor? A central control panel for monitoring, displaying, and logging engine performance parameters and alarms in real-time, o...
- O que e Painel do gerador de emergência? The control interface for the ship's emergency generator, enabling monitoring, activation, and shutdown of emergency ele...
- O que e Painel Principal de Distribuição? The primary electrical distribution panel on board controlling power supply to all vital systems and equipment, designed...
- O que e Pan Pan? A radiotelephony urgency signal indicating a situation urgent but not immediately life-threatening; always spoken in Eng...
- O que e Parada de emergência? An immediate shutdown of machinery or vessel propulsion, triggered by an emergency to prevent further damage or danger.
- O que e Pare as máquinas principais? Engine telegraph order to cease all propulsion; used when vessel is to remain stationary or fully secured at berth.
- O que e Partida Dependente da Carga? An automatic function of the ship’s power management system that starts or stops auxiliary engines or generators based o...
- O que e Partida do Gerador de Emergência? The procedure to initiate the ship's emergency generator to supply critical electrical power during a main blackout or f...
- O que e Partida do Motor Auxiliar? The operation to start a ship’s auxiliary engine, which provides electrical power or essential services independently of...
- O que e Passo Negativo do CPP? A controllable pitch propeller blade setting that provides astern thrust for stopping or reversing the vessel.
- O que e Passo Positivo do CPP? A controllable pitch propeller blade setting that provides forward thrust, the amount adjusted for desired vessel speed ...
- O que e Passo Zero do CPP? The position of a controllable pitch propeller (CPP) where the blades are aligned to produce no thrust, used for stoppin...
- O que e Pedido de Assistência de Rebocadores? Formal VHF or written message from vessel or pilot to harbour authority asking for specified tug support for manoeuvring...
- O que e Pedido de Previsão Metarea? Vessel’s formal demand via GMDSS for the latest meteorological forecast for a specific NAVAREA/METAREA region.
- O que e Perda de Eficiência do Leme? Reduction in steering response due to low water flow over rudder, cavitation, or mechanical limitation.
- O que e Perda de propulsão? Loss of ability to propel the vessel due to engine failure or other mechanical issues.
- O que e Perspectiva de Trovoadas? Prognostic bulletin giving probability, timing and movement of convective cells within shipping area.
- O que e Pigagem de linha? Mechanical cleaning of pipelines using a device known as a 'pig' to remove residues or blockages and ensure efficient fl...
- O que e Plano de alocação de rebocadores? A detailed arrangement indicating the number, type, and position of tugs assigned to assist a vessel during berthing, un...
- O que e Plano de Compensação de Força Lateral? A navigational strategy to counteract lateral forces (wind, current, propeller wash) that may cause a vessel to drift si...
- O que e Plano de controle de incêndio? A detailed, IMO-mandated shipboard diagram showing locations and procedures for firefighting equipment, escape routes, a...
- O que e Plano de controle de incêndio? A mandatory shipboard document showing fire safety systems, detection, protection, and escape routes as required by SOLA...
- O que e Plano de Gerenciamento de Bioincrustação? A documented system required by IMO for vessels to manage and minimize the accumulation of aquatic organisms on hulls an...
- O que e Plano de passagem de praticagem? A detailed route plan, prepared jointly by the master and pilot, outlining intended track, waypoints, speed, and manoeuv...
- O que e Plotagem Automática de Radar? The process by which radar targets are tracked and collision risk assessed automatically by ARPA systems, displaying rea...
- O que e Poluição por óleo? Presence or discharge of oil into marine waters from a vessel or facility, constituting a reportable incident and requir...
- O que e Ponte em espera? Notification that the navigating bridge watch is monitoring the working channel and ready to respond immediately.
- O que e Ponto de alteração de rumo? A precisely charted position where a ship is required to change its course, usually as part of a passage plan.
- O que e Ponto de guinada? The charted position at which the rudder is first applied to initiate a planned course alteration so that the vessel fol...
- O que e Ponto de Relato VTS? A specifically designated geographical position where a vessel is required to contact and report to the Vessel Traffic S...
- O que e Porta corta-fogo? A specially constructed door designed to resist fire and prevent the spread of flames and smoke between compartments or ...
- O que e Posição da Alavanca de Manobra? The selected position of the manoeuvring lever on the bridge or engine control console, determining direction and speed ...
- O que e Posição da Cremalheira de Combustível? The precise setting of the fuel control rack that determines the amount of fuel delivered to each cylinder of a diesel e...
- O que e Posição de emergência? Location reported by a vessel or person in distress, usually in latitude and longitude for rescue coordination.
- O que e Posição de leme de emergência? A designated location, often aft, equipped for manual control of the ship’s rudder if the main steering gear or control ...
- O que e Posição de leme de emergência? A dedicated station—usually aft in the steering gear room—used to control the ship’s steering in the event of bridge ste...
- O que e Posição duvidosa? Phrase used to indicate that the vessel's current navigational position cannot be reliably confirmed and may be inaccura...
- O que e Posição passada? Notification that a vessel has just crossed or gone abeam of a specified position, buoy, or waypoint.
- O que e Posição Rebocador de Popa? The designated location of a tug at the stern of a vessel, used to provide pulling or braking force during manoeuvring, ...
- O que e Posição Rebocador de Proa? The assigned and maintained location of a tug at the bow of a vessel to provide pushing, pulling, or steering assistance...
- O que e Posto de Controle Local? A designated engine room console enabling manual operation and monitoring of main engine or machinery independently of t...
- O que e Preparar máquinas principais? Order for main engines to be ready for immediate use, typically before departure, arrival, or manoeuvring.
- O que e Pressurização do Tanque? Maintaining a set positive pressure in a cargo tank, often using inert gas, to prevent air entry and reduce fire or expl...
- O que e Pressão de golpe? A sudden increase in pressure within a cargo pipeline or tank, usually caused by rapid valve closure or pump operation, ...
- O que e Pressão do Coletor? The pressure measured at the cargo manifold during loading or discharging, crucial for monitoring safe and efficient car...
- O que e Pretendo ultrapassar? Announcement that a vessel plans to pass another vessel ahead on a specified side in accordance with the COLREGS.
- O que e Previsor de Taxa de Guinada? ECDIS or radar-derived graphic that projects vessel’s future position based on present speed and rate of turn settings.
- O que e Previsão da Maré de Enchente? Forecast information regarding the timing and height of the next incoming (flood) tide, crucial for safe navigation and ...
- O que e Previsão de Deriva de Gelo? Forecast of movement and speed of pack or floe ice issued by ice service for route planning.
- O que e Previsão de Deriva de Iceberg? A prediction of the future movement and position of icebergs in a given maritime area, based on meteorological and ocean...
- O que e Previsão de Vazante? Tabulated forecast time and rate of falling tide current used for harbour passage planning.
- O que e Prioridade de socorro? The highest level of urgency assigned to radio or communication messages involving imminent danger and the need for imme...
- O que e Problema no motor? A condition in which a vessel’s propulsion machinery is malfunctioning or unreliable, possibly affecting speed and manoe...
- O que e Procedimento de Abatimento de Ruído? Harbour authority directive requiring vessels to minimise machinery and whistle noise, especially at night, to protect n...
- O que e Procedimento de Controle VOC? Shipboard plan to minimise Volatile Organic Compound emissions during loading, voyage and discharge of crude oil cargoes...
- O que e Procedimento de emergência? A set of predefined actions and communications for crew to follow in response to emergencies such as fire, collision, gr...
- O que e Procedimento de transferência do leme? The standardised method for transferring control of the ship’s steering from one helm station or operator to another, en...
- O que e Procedimento de troca de combustível? A documented process for safely switching the ship’s fuel supply from one grade or type to another, often to comply with...
- O que e Profundidade projetada do canal? The minimum depth of a navigational channel as determined and maintained by authorities for safe passage of vessels, ref...
- O que e Protetor de Acoplamento da Bomba? A mechanical safety cover installed over rotating pump couplings to prevent injury and contain parts in the event of fai...
- O que e Purgagem com nitrogênio? Introduction of nitrogen gas into tanks or pipelines to remove oxygen or flammable vapours, ensuring an inert atmosphere...
- O que e Purificador de Óleo Lubrificante? A centrifugal device used on board to remove water and contaminants from lubricating oil, ensuring optimal engine operat...
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- O que e Radar de tanque? Radar-based electronic device for real-time measurement of cargo tank level, ullage, or interface, providing accurate, n...
- O que e Reboque de emergência? The act of towing a vessel in distress or unable to maneuver using an emergency tow line or arrangement as per SOLAS req...
- O que e Recebedor de pig? A pressure vessel or chamber installed at the end of a pipeline to receive the pig after cleaning, used in cargo or ball...
- O que e Recebedor de pig? A pressure vessel or chamber at the end of a pipeline to receive the pig after cleaning or product transfer, used in car...
- O que e Recebimento de Carta Radiofax? Confirmation that a complete facsimile weather chart has been successfully received via HF radio and is ready for naviga...
- O que e Recirculação do tanque? The process of circulating cargo within a tank, using pumps and pipelines, to maintain uniform temperature and prevent s...
- O que e Reconhecimento da ordem do leme? The required verbal response by the helmsman to confirm receipt and understanding of a helm order from the officer of th...
- O que e Rede principal de incêndio? A fixed piping system on a ship delivering water under pressure for firefighting throughout the vessel.
- O que e Reduza para cinco? Helm order instructing the helmsman to reduce rudder angle to five degrees while maintaining course adjustment.
- O que e Reduza para um cabo? Order to reduce the number of mooring lines on each bollard to one, preparing the vessel for departure.
- O que e Redução de Velocidade de Ancoragem? Deliberate decrease in vessel speed to a safe limit before anchor deployment, minimizing anchor dragging and ensuring pr...
- O que e Registrador de dados do motor? A device or software system that automatically records and stores key engine parameters for performance monitoring, diag...
- O que e Registro de Descarga de Lixo? A mandatory logbook entry or record made by the ship to document every instance of garbage discharge or disposal at sea ...
- O que e Registro de temperatura? The continuous recording of temperature measurements within cargo tanks or lines to ensure safe transport and quality co...
- O que e Relato de emergência? The formal communication and documentation of an emergency situation to the bridge, VTS, or authorities, following stand...
- O que e Relatório de Borda de Gelo? Update giving the geographic position of the ice edge separating open water from pack ice, critical for polar routing.
- O que e Relatório de Código Sinóptico? A standardized numerical weather message (per WMO/IMO) reporting synoptic-scale observations, transmitted by ships for m...
- O que e Relatório de Dados Oceanográficos? A formal report or transmission containing oceanographic data such as temperature, salinity, current, and sea state, as ...
- O que e Relatório de Direção da Ondulação? Statement giving the dominant direction, height and period of the prevailing ocean swell for route planning and seakeepi...
- O que e Relatório de Direção do Vento? An official meteorological report or observation stating the current direction from which the wind is blowing, vital for...
- O que e Relatório de Lixo Marinho? A report made to authorities or VTS regarding observed floating or drifting marine debris that may pose a hazard to navi...
- O que e Relatório de Observação de Névoa? A message reporting reduced visibility due to haze, specifying affected areas and visibility range, commonly issued for ...
- O que e Relatório de Pedaço de Gelo? An official communication or broadcast of the sighting and position of medium-sized floating ice fragments (bergy bits),...
- O que e Relatório de Pressão Barométrica? Regularly transmitted statement of current atmospheric pressure and trend for meteorological data exchange and storm tra...
- O que e Relatório de Tendência Barométrica? Synoptic code group summarising rate and character of atmospheric pressure change during past three hours, broadcast in ...
- O que e Relatório do Estado do Mar? Periodic description of significant wave height, period and swell state transmitted for routing and safety assessments.
- O que e Reserva de Potência à Ré? Remaining astern propulsion capacity beyond that required for standard manoeuvre, ensuring additional stopping margin.
- O que e Reservatório Principal de Ar? A large pressure vessel that stores compressed air for main engine starting and other critical pneumatic systems, mainta...
- O que e Resfriador de Ar de Varredura? A heat exchanger that cools scavenge air supplied to main engine cylinders, increasing air density and engine efficiency...
- O que e Resfriador de Óleo Hidráulico? A heat exchanger used to maintain the temperature of hydraulic oil within safe operating limits for reliable system perf...
- O que e Resposta de emergência? Immediate actions taken by trained crew to mitigate emergencies such as fire, flooding, collision, or medical incidents,...
- O que e Resposta à Carga do Motor? The manner and speed at which the main engine adapts to sudden changes in power demand, crucial for manoeuvring and heav...
- O que e Retome a rota? Order authorising a vessel to continue its original voyage after a temporary stop, alteration, or holding pattern.
- O que e Retorno de Vapor? A pipeline or hose system connecting ship and shore to return displaced cargo vapours to the terminal during loading.
- O que e Retransmissão de socorro? The retransmission of a received distress call or message by a station not in distress, alerting other ships or coast st...
- O que e Retrolavagem Automática? A system that automatically reverses flow through filters or strainers to remove debris and maintain performance without...
- O que e Reunião da tripulação? The assembly of all crew at designated muster stations for roll-call, instruction, or emergency drill, as per muster lis...
- O que e Reunião de Emergência? The immediate assembly of all crew and passengers at assigned muster stations in response to an alarm or emergency situa...
- O que e Reunião de vítimas? The assembly and accounting of crew and passengers following an incident to identify and assist injured or missing perso...
- O que e Reversão do motor principal? A maneuver in which the main engine’s rotation direction is reversed, allowing the ship to go astern or stop.
- O que e Risco de colisão? Phrase indicating that two or more vessels are on courses or at speeds that may result in collision unless action is tak...
- O que e Risco de encalhe? Potential danger of the vessel running aground due to shallow water or navigational error.
- O que e Risco de explosão? The probability of explosion due to flammable vapours, gases, or materials present in a compartment or operational area.
- O que e Risco de explosão? The immediate or potential danger of explosion caused by flammable vapours, gases, or dust in confined spaces or cargo a...
- O que e Rota de evacuação? A pre-designated path marked and maintained on board for safe and efficient evacuation during emergencies.
- O que e Rota de Águas Profundas? A route within defined limits in deep water that is charted and designated for the passage of vessels requiring deep dra...
- O que e Rota efetuada? The actual path a vessel follows over the ground, as recorded by position fixes, often used interchangeably with course ...
- O que e Rumo efetuado? The actual path of a vessel over the ground, as determined by position fixes, regardless of set or drift.
- O que e Rumo inalterado? A statement or confirmation that a vessel’s present heading will not be altered.
- O que e Rumo inalterado? Statement indicating that the vessel’s heading remains as previously instructed or reported.
- O que e Ré muito devagar? Engine telegraph order instructing propulsion at the lowest possible speed astern, used for delicate reversing or while ...
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- O que e Saída de emergência? A clearly marked route or door for rapid escape from a compartment or area during emergencies.
- O que e Saída de emergência? A designated route or means for crew to safely evacuate from compartments, accommodation, or machinery spaces during eme...
- O que e Sem autorização? Notification that the vessel does not have authorization or permission to enter, leave, or transit a specific area, port...
- O que e Sem resposta? Phrase used to indicate that a called station has not replied within a reasonable time, requiring repeat or escalation o...
- O que e Sensor de Temperatura do Escapamento? A device that measures and transmits the temperature of exhaust gases, crucial for monitoring engine performance and pre...
- O que e Sequenciamento de Carga? The planned order and timing for loading, transferring, or discharging cargoes in different tanks to maintain stability ...
- O que e Sequência de carregamento? The planned order and method for loading cargoes into tanks to maintain vessel stability, prevent contamination, and com...
- O que e Sequência de carregamento? The planned order and method for loading cargoes into tanks to maintain stability, prevent contamination, and comply wit...
- O que e Sequência de Recuperação de Apagão? A prescribed procedure to restore shipboard power and restart essential systems after total electrical blackout, ensurin...
- O que e Serpentina de aquecimento? A tubular device installed inside cargo tanks for indirect heating of cargoes, especially heavy oils, to maintain suitab...
- O que e Seta e deriva da corrente? The direction (set) and speed (drift) of water current affecting the ship’s course and position.
- O que e Silêncio de rádio? A formal order requiring all stations to cease transmitting on a frequency, usually for distress or security reasons.
- O que e Sinal de socorro? A recognized sound, light, radio, or visual signal sent by a vessel or person indicating imminent danger and urgent need...
- O que e Sinal de socorro? A signal indicating a vessel or person is in grave and imminent danger and requires immediate assistance. Includes visua...
- O que e Sinal de Vendaval Severo? An official maritime signal indicating imminent or present severe gale conditions (Beaufort Force 9–10) requiring vessel...
- O que e Sincronização do gerador? The process of matching the voltage, frequency, and phase of an incoming generator to the busbar before connecting it in...
- O que e Sincronização do Passo da Hélice? Matching of pitch angles on controllable-pitch propellers to balance thrust and avoid yaw during twin-screw operations.
- O que e Sino de avante devagar? The engine telegraph order for slow speed ahead, typically used during precise manoeuvring, docking, or when entering co...
- O que e Sino meia avante? Engine telegraph order instructing propulsion at half engine speed ahead, used for moderate manoeuvring or departure fro...
- O que e Sino toda avante? Engine telegraph order instructing propulsion at full engine speed ahead, typically used in open sea or to quickly gain ...
- O que e Sistema de alívio de carga? An automated system that disconnects non-essential electrical loads to prevent total blackout when generator capacity is...
- O que e Sistema de Atracação Laser? High-precision laser array projecting range and angular deviation data to vessel displays for centimetre-level berthing ...
- O que e Sistema de Controle Remoto? A system allowing the operation and monitoring of shipboard machinery or equipment from a location other than the equipm...
- O que e Sistema de governo de emergência? Alternate manual or powered system used to control ship's rudder if the main steering fails.
- O que e Sistema de Intertravamento do Motor? An automated safety mechanism that prevents certain engine operations unless predefined conditions are satisfied, protec...
- O que e Sistema de Medição de Tanques? An electronic or manual system for measuring liquid levels in ship tanks, such as fuel, ballast, or fresh water, to ensu...
- O que e Sistema de Relato Obrigatório? A regulatory system requiring vessels to provide voyage information at specified locations or intervals, typically enfor...
- O que e Sistema de Água de Resfriamento? The network of pipes, pumps, and heat exchangers circulating water to remove excess heat from the main engine and auxili...
- O que e Sistema global de navegação? A satellite-based navigation system such as GPS, GLONASS, Galileo, or BeiDou, providing worldwide position, navigation, ...
- O que e Sobrecarga de Motor Elétrico? A condition in which an electric motor draws current above its rated limit, risking overheating and possible failure unl...
- O que e Solte o cabo de estibordo? Mooring command to release or cast off the starboard (right) mooring line or cable.
- O que e Solte todos os cabos? Final order to release all mooring lines, allowing the vessel to depart from berth.
- O que e Sucção de Porão de Emergência? A designated suction line and valve in the engine room bilge system used only in emergencies to rapidly remove water fro...
- O que e Sulfeto de hidrogênio? A highly toxic and flammable gas (H₂S) present in some crude oils and products; detection and management are critical fo...
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- O que e Tabela de avanço e transferência? A manoeuvring aid providing predicted advance (distance along original track) and transfer (lateral distance) for specif...
- O que e Tanque de Fundo Duplo? A compartment at the bottom of the ship, between the inner and outer hull, used for ballast water, fuel, or as a safety ...
- O que e Tanque de Lodo do Purificador? A tank designed to collect and store sludge and contaminants removed by fuel or lube oil purifiers before final disposal...
- O que e Tanque de Pressão Hidrofórico? A pressurized tank in a ship’s fresh water system that maintains constant water pressure for domestic and service use th...
- O que e Tanque de Óleo Diesel? A dedicated tank for storing diesel oil, used for main engines, auxiliary engines, or emergency generators on board ship...
- O que e Taxa de Guarnição? The speed at which a vessel changes its heading, typically measured in degrees per minute and displayed on the bridge in...
- O que e Taxa de recolhimento da âncora? The speed at which the anchor cable is hauled in, usually measured in meters per minute, to control anchor recovery.
- O que e Telégrafo de Ponte para Máquinas? A signaling system between bridge and engine room, used to transmit engine speed and direction orders during ship maneuv...
- O que e Temperatura da Superfície do Mar? Measured or satellite-derived temperature of ocean top centimetre, critical for routing, icing and cyclogenesis forecast...
- O que e Temperatura Mancal do Eixo? The measured temperature of a ship’s main propulsion shaft bearing, monitored continuously to prevent overheating and po...
- O que e Tensão da Corda do Rebocador? The force applied to a tow or mooring line connecting a tug to a vessel, monitored to ensure safe and effective manoeuvr...
- O que e Teor de Água? A measurement indicating the percentage of water present in a liquid cargo, essential for determining product quality an...
- O que e Teste de Carga do Gerador? A controlled procedure for verifying a generator’s capability to supply rated power by gradually applying electrical loa...
- O que e Teste de comunicações? A check of the operational status and clarity of shipboard, shore, or VTS radio equipment by transmitting test calls and...
- O que e Teste de Mangueira? The procedure of pressure-testing cargo hoses with water or air before use to ensure integrity and compliance with inter...
- O que e Teste de resposta do regulador? A routine operational test to verify that the engine speed governor responds correctly to load changes, ensuring engine ...
- O que e Teste de Vazão do Purificador? An operational procedure to verify the flow rate and performance efficiency of the lubricating or fuel oil centrifugal p...
- O que e Teste de Válvula de Retenção? A procedural check to verify that a non-return (check) valve allows fluid flow in only one direction, preventing backflo...
- O que e Todas as estações? Universal radio call addressing every vessel or station within radio range, especially for navigational warnings or urge...
- O que e Todo a bombordo? Helm order instructing the rudder to be put fully to port (left) for maximum turning effect.
- O que e Todo a estibordo? Helm order instructing the rudder to be put fully to starboard (right) for maximum turning effect.
- O que e Tomada de Força? A mechanical device that transfers engine power to auxiliary equipment such as generators or pumps, typically via a shaf...
- O que e Traje de combate a incêndio? A specialized suit, heat-resistant and insulated, worn by crew to provide protection against fire and high temperatures ...
- O que e Traje de proteção química? A specialized suit worn by crew for personal protection against hazardous chemicals, especially during spill or leak eme...
- O que e Transferência de controle da ponte? The formal procedure to transfer vessel control (steering and propulsion) between the bridge and alternative control sta...
- O que e Transferência de Óleo Combustível? The process of pumping fuel oil from one tank to another or to the engine, requiring strict adherence to MARPOL, safety,...
- O que e Transferência por helicóptero? Operation involving the embarkation or disembarkation of personnel or cargo by helicopter to or from a vessel, requiring...
- O que e Transmissor de Emergência? A dedicated radio device used to send automatic distress signals, such as EPIRBs or DSC-enabled VHF/MF/HF transmitters.
- O que e Transmissão de informação? A general transmission on VHF or NAVTEX to inform vessels about safety, weather, traffic or other operational matters.
- O que e Transmissão de segurança? Official VHF or NAVTEX message to all ships concerning safety-related information or urgent warnings.
- O que e Tratamento de Resíduos? The onboard process of managing and separating oil residues, tank washings, and mixtures for discharge or retention in s...
- O que e Trava de Hélice Azimutal? A system state where azimuth thrusters are held in a fixed orientation to prevent movement, usually for safety during ma...
- O que e Treinamento de bote salva-vidas? Regular training exercises involving the launching and operation of lifeboats as per SOLAS requirements.
- O que e Treinamento de emergência? Structured instruction and practice provided to crew members to ensure preparedness for handling emergencies such as fir...
- O que e Treinamento de incêndio? A mandatory exercise where crew practice procedures for responding to fire emergencies, including alarms, mustering, and...
- O que e Trilho de Aproximação da Rampa? The planned or observed vessel path when aligning for entry onto a slipway, critical for safe launching or hauling opera...
- O que e Troca de Lastro? The procedure of replacing ballast water taken from one area with water from another, to minimize the spread of invasive...
- O que e Troca de Água de Lastro? Operation of replacing loaded ballast with mid-ocean water at prescribed distance from land to prevent bio-invasion, log...
- O que e Troca do equipamento de leme? The act of switching from one steering gear system or power unit to another, often for redundancy or in case of equipmen...
- O que e Troca mestre-prático? A formal communication process between the ship’s master and the pilot to share essential navigation information, plans,...
- O que e Tráfego de emergência? Radio messages of high urgency concerning the safety of a ship, person, or environment, requiring priority over all othe...
- O que e Tráfego de porto? Collective term for the movement of vessels and craft within port limits as monitored by VTS or Harbour Master.
- O que e Tráfego de socorro? Radio transmissions exclusively concerning vessels or persons in grave and imminent danger, given absolute priority on a...
- O que e Tráfego intenso? A situation or area where a high density of vessels requires heightened vigilance, reduced speed, and strict adherence t...
- O que e Tráfego local? Vessels operating within a port, harbour, or defined coastal area, often with priority rules or reporting obligations fo...
- O que e Tubo principal de incêndio? The principal pipeline on board supplying seawater under pressure to hydrants and hoses for firefighting, as specified b...
U
- O que e Unidade de liberação automática? A device designed to automatically release life-saving appliances, such as liferafts, when submerged or activated by spe...
- O que e Unidade de Referência de Movimento? A device that detects and reports a vessel’s six degrees of motion, used to support dynamic positioning and other naviga...
V
- O que e Variação do compasso magnético? The angular difference between true north and magnetic north, affecting compass readings on board ships.
- O que e Vedação do Tubo de Popa? A sealing device at the exit point of the ship’s propeller shaft through the hull, preventing water ingress and oil leak...
- O que e Velocidade mínima de desencaixe? The lowest speed required to break the anchor free from the seabed and commence recovery.
- O que e Velocidade mínima de governo? The lowest speed at which the vessel maintains effective steering control, typically specified by the vessel’s maneuveri...
- O que e Ventilação da Casa de Máquinas? The provision and regulation of air flow to the engine room to remove heat, fumes, and ensure safe working conditions, a...
- O que e Ventilação da sala de bombas? The process and system for providing safe airflow in the pump room to prevent accumulation of explosive vapors and maint...
- O que e Ventilação do Tanque? The controlled release of vapours from a cargo tank through dedicated venting systems to prevent overpressure or vacuum ...
- O que e Ventilação fechada? Method of venting tank vapours through a controlled, closed system to prevent release of gases to the atmosphere, comply...
- O que e Vento de Força Furacão? Wind of Beaufort scale 12 (≥ 64 kn) producing phenomenal seas; reported in Metarea bulletins as force 12.
- O que e Verificação da Adequação do Berço? A verification process to ensure the selected berth meets vessel requirements in terms of depth, length, fendering, and ...
- O que e Verificação da Folga do Davit? Process of ensuring the davit’s operational path is free of obstruction and ready for safe lifeboat launching or recover...
- O que e Verificação da Proteção da Hélice? Inspection of the propeller guard for integrity and correct positioning before manoeuvring or departure, ensuring safe p...
- O que e Verificação da Rota de Aproximação? Confirmation that vessel’s intended approach line aligns with planned track and pilot’s instructions before final manoeu...
- O que e Verificação da velocidade de manobra? The process of verifying and confirming the vessel’s speed through the water is suitable for safe manoeuvring during ber...
- O que e Verificação de Bollard Pull? Confirmation that a tug’s certified bollard-pull matches terminal requirements before allocating towage tasks.
- O que e Verificação de Inércia Reversa? Verification manoeuvre carried out to ensure the vessel’s astern power can promptly overcome residual forward momentum b...
- O que e Verificação do Loadicator? A procedure to verify cargo and ballast loading plans and actual weights using a shipboard stability calculator (loadica...
- O que e Verificação do Momento Reverso? Verification that astern power has arrested forward momentum before changing engine orders during docking sequence.
- O que e Verifique a correção? Instruction to verify the accuracy of a reported position, course, message, or navigational information before proceedin...
- O que e Verifique a distância? Instruction or query to verify the distance to a navigational object, other vessel, or danger, often using radar or visu...
- O que e Verifique a guinada? Helm or mooring order to observe and, if necessary, limit or arrest the vessel's swinging motion, especially when turnin...
- O que e Verifique a posição? Instruction or request to verify the vessel's current navigational position using all available means, including GPS, ra...
- O que e Vibração Torsional do Eixo? Oscillation in the propulsion shaft caused by variations in torque, potentially leading to machinery damage if not contr...
- O que e Vigia da Casa de Máquinas? The assigned period when crew are stationed in the engine room to monitor, operate, and respond to machinery and alarms,...
- O que e Vigia de navegação na ponte? A continuous period during which designated officers and crew maintain vigilance and operational control on the bridge t...
- O que e Viscosidade do óleo combustível? The measure of a fuel oil’s resistance to flow, critical for engine injection and atomization; monitored and regulated i...
- O que e Vistoria de Calado? A method of determining the weight of cargo loaded or discharged by measuring the vessel’s draft marks before and after ...
- O que e Válvula de Alívio de Vapor? A valve that releases excess steam from boilers or turbines to prevent overpressure, often routed to the atmosphere or c...
- O que e Válvula de Pressão-Vácuo? A safety device on cargo tank vent lines that automatically opens or closes to maintain safe pressure and prevent overpr...
- O que e Válvula de purga? A valve used to expel unwanted gases or residues from cargo lines, tanks, or machinery spaces, ensuring safe and inert c...
- O que e Válvula de pé? A non-return valve installed at the lower end of a suction line in cargo or ballast tanks, designed to prevent backflow ...
- O que e Válvula de refluxo? A valve installed to control the return flow of condensed vapors or liquids back into a tank or system for process or sa...
- O que e Válvula do Caixa Mar? A seacock or valve fitted at the hull sea chest, controlling seawater intake for engine cooling, ballast, or firefightin...
- O que e Válvula Reguladora de Pressão? A valve used to maintain a set pressure in a piping system by opening or closing in response to changes in upstream or d...
Z
- O que e Zona de incêndio? A designated compartment or section of a vessel, defined by structural boundaries, to limit fire spread and facilitate f...
- O que e Zona de incêndio? A designated section of a ship separated by fire-resistant boundaries to contain and limit fire spread, as defined by SO...
- O que e Zona de Proibição de Ultrapassagem? A defined sector of a channel or waterway where overtaking by vessels is prohibited for safety reasons, often due to res...
- O que e Zona de Tráfego Costeiro? A coastal area, adjacent to the landward side of a traffic separation scheme, intended for use by vessels not using the ...
Á
- O que e Água de Resfriamento da Camisa? The fresh water circulating through the engine’s cylinder jacket to absorb heat and prevent overheating during operation...
- O que e Área de Baixa Pressão? A meteorological region where atmospheric pressure is lower than surrounding areas, often associated with unsettled weat...
- O que e Área de Controle de Emissões? Designated sea region where MARPOL Annex VI limits on SOx, NOx and PM apply; requires low-sulphur fuel or equivalent aba...
- O que e Área de embarque do prático? A designated area, marked on charts, where the pilot boards or disembarks from a vessel, usually at port approaches or f...
- O que e Área de perigo? A specified maritime zone where navigation is hazardous due to military exercises, wrecks, shallow waters, or other dang...
- O que e Área de perigo? A specific zone designated as hazardous to navigation due to wrecks, shoals, operations, or other maritime risks; marine...
- O que e Área de Precaução? A defined area where vessels must navigate with particular caution, often due to traffic convergence, hazards, or comple...
Â
- O que e Âncora garreando? Situation where a vessel’s anchor does not hold, causing the ship to drift from its intended position.
- O que e Âncora garreando? Situation where a vessel’s anchor fails to hold and the vessel moves from its intended position, risking collision or gr...
- O que e Ângulo de Deriva Controlado? Intentional small leeway angle set between vessel heading and track to counter cross-wind or current during approach.
Ó
- O que e Óleo de Redutor? Lubricating oil specifically formulated for use in reduction gearboxes, ensuring smooth power transmission and preventin...
- O que e Óleo do mancal principal? Lubricating oil supplied to the main engine's main bearings, essential for reducing friction and preventing overheating ...
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