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【单选题】

All engines in lifeboats and rescue boats shall be run for a total period of not less than（）in weekly inspections.

A、2 minutes

B、3 minutes

C、4 minutes

D、5 Minutes

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更多“All engines in lifeboats and rescue boats shall be run for a total period of not less than（）in weekly inspections.”相关的问题
第1题
[单选题] In conventional systems, the injection pressure（）, while it’s（）in common rail diesel engines.

A、fluctuates with the engine speed to some extent, independent of the engine speed  B、keeps constant at all engine speed, dependent on the engine speed to some extent  C、keeps constant at all engine speed, independent of the engine speed  D、is decided by the engine speed, constant at all engine speed  

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第2题
[单选题] Before using a fixed C02 system to fight an engine room fire,you must（）.

A、secure the engine room ventilation  B、secure the machinery in the engine room  C、evacuate all engine room personnel  D、ALL of the above  

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第3题
[单选题] Before using a fixed CO2 system to fight an engine room fire，you must（）.

A、secure the engine room ventilation  B、secure the machinery in the engine room  C、evacuate all engine room personnel  D、All of the above  

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第4题
[单选题] Some diesel engines are fitted with a thermometer in the cooling water outlet from each cylinderIf the cooling water temperature from all cylinders begins to rise above normal, you should suspect （）

A、increase blow-by in all cylinders  B、incomplete combustion in all cylinder  C、overloading in all cylinders  D、insufficient fuel delivery to all cylinders  

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第5题
[单选题] If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.

A、at each control station  B、in the chief engineer’s quarters  C、in the captains quarters  D、All of the above are correct  

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第6题
[单选题] Proper lubrication of the main bearings is more easily obtained in a single acting, four-stroke/cycle diesel engine than in a tow-stroke/cycle diesel engine because（）.

A、The direction of pressure on the journal in four-stroke engine is continuously  B、positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engine  C、four-stroke engines usually utilize a heavier grade of oil than tow-stroke engines  D、Low-stroke engines usually consume less lube oil than four-stroke engines  

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第7题
[单选题] When the engine room is put in standby condition, the engineer in charge of the watch need not to（）

A、ensure all machinery which may be used during maneuvering is in ready  B、ensure an adequate reserve of power is available for steering gear and other requirements  C、keep the main propulsion unit controls continuously attended when in the manual mode of operation  D、ensure all machinery which may be used during maneuvering is running stably  

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第8题
[单选题] （）, so they are widely used on board ship nowadays.

A、Diesel engines have more advantages in comparison with gasoline engines  B、Diesel engines have more advantages in comparison to gasoline engines  C、Gasoline engines have more advantages in comparison with diesel engines  D、Gasoline engines have more advantages in comparison to diesel engines  

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第9题
[单选题] A defective injector nozzle in a propulsion diesel engine can cause（）

A、engine power losses  B、smoking due to unburned fuel  C、high exhaust temperature readings  D、all of the above  

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第10题
[单选题] If a crankcase explosion occurs in a diesel engine, you should stop the engine and（）

A、immediately open all crankcase relief ports  B、increase crankcase exhauster speed to draw cool air into the engine  C、allow the engine to cool naturally  D、increase crank case scavenge air to remove unburned gases  

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