单项选择题
If your propeller is racing in rough weather，you should（）.
A.decrease your engine speed
B.ignore it
C.increase your engine speed
D.stop your engine until the rough weather passes
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相关考题
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单项选择题
If you are unable to stop a diesel engine by any other means，you should（）.
A.discharge a CO2 extinguisher in the air inlet
B.pull off the distributor cap
C.secure the jacket water
D.secure the starting air supply valve -
单项选择题
If ignited，which material would be a class B fire?（）
A.Magnesium
B.Paper
C.Wood
D.Diesel Oil -
单项选择题
If an electric cargo winch is being used to lift a draft of cargo and the engine room loses all power，which will occur?（）
A.A pawl，forced by a spring mechanism，will engage the teeth of the bull gear and hold the load
B.An electromagnetic brake will hold the load where it is suspended
C.The load will fall rapidly to the deck unless the foot brake is engaged
D.The load will slowly lower to the deck under control of the drag of the winch motor
