单项选择题
Which fitting is used to connect the boom to the mast? （）
A.Clevis pin
B.Gunter-lug
C.Gooseneck
D.Transom
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Which device is designed to automatically hold the load if power should fail to an electric winch?（）
A.Pneumatic brake
B.Electromagnetic brake
C.Hand brake
D.Motor controller -
单项选择题
When the pilot is embarked he or she（）.
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 -
单项选择题
When must the Master or person in charge of a ship log the position of load line marks in relation to the surface of the water in the logbook?（）
A.Once a day
B.At the change of every watch
C.Only when in fresh or brackish water
D.Prior to getting underway
