A.Pneumatic brake
B.Electromagnetic brake
C.Hand brake
D.Motor controller
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A.relieves the officer of the watch
B.relieves the Master of his duties
C.is solely responsible for the safe navigation of the vessel
D.is a specialist hired for his or her local navigational knowledge
A.Once a day
B.At the change of every watch
C.Only when in fresh or brackish water
D.Prior to getting underway
A.To cut off the power when the davits hit the track safety stops
B.To stop the davits from going too fast
C.To cut off the power when the davits are about 12 inches or more from the track safety stops
D.None of the above
A.The bow type shackle provides a superior connection
B.The D-type shackle is weaker than the bow type
C.The bow type shackle is weaker than the D-type
D.The D-type shackle provides an inferior connection
A.Condenses moisture
B.Provides overpressure protection
C.Purifies the air
D.Acts as an accumulator
最新試題
Which device is designed to automatically hold the load if power should fail to an electric winch?（）
What is the best instrument for establishing a safe working area before welding in a confined space? （）
What is the BEST conductor of electricity（）.
Which fitting is used to connect the boom to the mast? （）
Which statement describes the shore between Watch Hill Point and Point Judith? （）
In determining that the（）of the navigational watch is adequate to ensure that a proper look-out can continuously be maintained，the master shall take into account all relevant factors.
The officer in charge of the navigational watch shall not hand over the watch to the relieving officer if（）.
Upon completion of fueling a gasoline driven vessel it is necessary to（）.
You are on watch and the Pilot has the conn.The Master has temporarily gone below.The Pilot orders a course change which you are certain will put the vessel into imminent danger.Your first action should be to（）.
What is the function of an air receiver in the compressed air system on a ship? （）