单项选择题
When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.
A.Should not exceed
B.Must be up to
C.Should exceed
D.Should be about
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相关考题
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单项选择题
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 -
单项选择题
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 -
单项选择题
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
