单项选择题
Where are the test certificates，for wire rope used as cargo runners，and loose gear certificates usually maintained? （）
A.With the Cargo Gear Register on the ship
B.In the Official Log
C.At the Coast Guard Marine Safety Office with the vessel's inspection records
D.At the central records center of the agency testing the cargo gear
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When should you conduct a visual inspection of your towline? （）
A.Whenever its serviceability is in doubt
B.In accordance with the manufacturer's recommendation
C.At least once a month
D.All of the above -
单项选择题
When inspecting a tank barge to see that it has all the required fire extinguishers and other safety items aboard，which of the following is the best source for determining what is required? （）
A.The supervisor in charge of the dock to which the barge is tied up
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单项选择题
When backing down with sternway，the pivot point of a vessel is（）.
A.about one-quarter of the vessel's length from the stern
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D.aft of the propellers
