單項(xiàng)選擇題In the first 24 hours after abandoning a vessel, water should be given only to personnel who are().

A.thirsty
B.sick or injured
C.wet
D.awake


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2.單項(xiàng)選擇題If the buoyant force on a ships hull is equal to or greater than the displacement tonnage, the ship will ().

A.require ballast added to only the port side tanks
B.be down by the head
C.sink
D.float

3.單項(xiàng)選擇題When fighting an electrical fire, you should first ().

A.stop ventilation to the area
B.stop the vessel
C.secure electricity to the circuit
D.apply CO2 to the fire

4.單項(xiàng)選擇題You are transferring fuel from the storage tanks to the day tanks by means of an electric fuel oil transfer pumpIf the pump motor catches fire, you would FIRST ().

A.secure the fuel manifold
B.shut off power to the pump
C.shut off the power ventilation
D.spray water on the fire

5.單項(xiàng)選擇題If the diesel fuel vapors present are within the flammable range ().

A.the vapor air mixture is too rich to burn
B.an explosion may occur if a source of ignition is present
C.the vapor air mixture is too lean to bum the upper explosive
D.limit has been exceeded

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Under MARPOL Code the ship to which it applies has to carry ()

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Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()

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The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()

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