單項(xiàng)選擇題

When discharging an oil cargo，the first consideration is to（）.

A.get the bow up
B.discharge from the wings first
C.discharge from the centerline tanks first
D.discharge from amidships first

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單項(xiàng)選擇題

What is/are the advantage（s）of cranes over conventional cargo booms（）.

A.Cranes are able to pick up and drop loads over a greater spotting area
B.Increased safety because the deck is clear of running and standing rigging
C.Simplicity of operation of the crane by its operator
D.All of the above

單項(xiàng)選擇題

What is the purpose of the equalizing beam aboard a crane vessel（）.

A.It allows for rotation of the hook in the single mode
B.It is required to“twin-up”30-ton pedestal cranes
C.It is used to pick up light loads
D.It is used to rigidly connect two cranes