单项选择题
When instructing a crew member concerning the right way to lift a weight，you would instruct him to（）.
A.Arch the back to add strength to the muscles
B.Bend his knees and lift with his legs
C.Bend his back and stoop
D.Bend his back and stoop with arms straight
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相关考题
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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 -
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
