单项选择题

When hoisting a boat on gravity type davits using an electric motor driven winch，the davit arms should be brought up（）.

A.to their final position with the winch operating at slow speed
B.to the bar stop，and then hand cranked to their final position
C.until just before they make contact with the limit switch，and then hand cranked to their final position
D.to the embarkation deck，and then hand cranked to their final position

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单项选择题

When a line is spirally coiled about its end and lying flat on deck，it is said to be（）.

A.coiled
B.faked
C.flemished
D.seized

单项选择题

What is TRUE about hoisting operations?（）

A.Personnel may work beneath suspended loads，as long as they are alert and wear hard hats
B.If a suspended load with no tag begins to spin，personnel should attempt to stop the spinning if the load is within reach
C.If tag lines are used to control a suspended load，they should be secured to the deck
D.Personnel not involved in the hoisting operation should be kept clear of the transfer area

单项选择题

What is meant by the term TOPPING THE BOOM?（）

A.Lowering the boom
B.Raising the boom
C.Spotting the boom over the deck
D.Swinging the boom athwartships