单选题If you are bunkering and you close off one tank in the line of tanks being filled，the rate of flow to other open tanks on the same line will（）.A increaseB decreaseC stopD remain constant

during bunkering in the last vessel ,what were you assigned to do ?or what was your position during bunkering on your last vessel ?

To prevent the spread of fire by conduction, you should ______.

A.cool the bulkheads around the fire

B.remove combustibles from direct exposure

C.close all openings to the area

D.shut off all electric power

A、all

B、more

C、full

D、less

If you are bunkering and you close off one tank in the line of tanks being filled，the rate of flow to other open tanks on the same line will ______．

A.increase

B.decrease

C.stop

D.remain constant

In reference to accidental oil pollution，the most critical time during bunkering is when ______.

A.you first start to receive fuel

B.hoses are being blown down

C.final topping off is occurring

D.hoses are being disconnected

In fighting a fire in a fuel tank, the FIRST action you should attempt is to _____.

A.secure all sources of fresh air to the tank

B.begin transferring the fuel to other tanks

C.top off the tank to force out all vapors

D.station someone at the fixed CO2 release controls

A precaution you should take before bunkering is to ______

A.plug the vents

B.plug the sounding pipes

C.plug the scuppers

D.close the lids on the vents

The main propulsion diesel continues running after you try to shut down. You should now attempt to .

A.stop the fuel oil booster pump

B.engage the jacking gear

C.secure the lube oil pump

D.shut off the fuel at the settling tank

A deck-stowed 40-foot container is giving off smoke，and one end is discolored from heat. The cargo is valuable and easily damaged by water. You want to extinguish the fire without further damage if possible. What action should you take? ______.

A.Connect a portable line from the ship's fixed system and discharge CO2 into the container

B.Flood the container with water and disregard any cargo damage as the fire threatens the entire vessel

C.Pierce the container and discharge 6 or more portable CO2's then add more CO2 hourly

D.Cool the exterior of the container with water and close all vents； then keep it cooled until it can be off-loaded

The fitting at the end of a cargo line in a tank that allows suction to be taken close to the bottom of a tank is a ______．

A.Suction end

B.Strainer

C.Bell-mouth

D.Vacuum valve