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You are operating a lift boat．When jacking down and a leg becomes stuck on the bottom，you should ______．
A.raise the free legs all the way
B.use the engines to rotate about the leg that is stuck
C.jack the barge down part way to pull the leg free
D.submerge the barge completely to give added pull
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更多 “ You are operating a lift boat．When jacking down and a leg becomes stuck on the bottom，you should ______．A.raise the free legs all the wayB.use the engines to rotate about the leg that is stuckC.jack the barge down part way to pull the leg freeD.submerge the barge completely to give added pull ” 相关考题
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判断题If you are stuck, change to a new point.‘To be stuck’means to be sure of something.A
对B
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单选题You intend to tow a barge with one tug and expect continuous high winds from the north. To reduce the yaw of your tow，you should（）.A
reduce the draft of the bargeB
shorten one leg of the bridleC
place bulky deck loads as far aft as possibleD
trim the barge down by the bow
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单选题After jacking down your liftboat you have an unexpected list.You find that the only cause of this list must be a flooded leg.Your next course of action should be to（）.A
Jack the vessel back up to a safe heightB
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pushing up on one sideB
standing on the CO2 bottle，holding the bottom straps，and throwing your weight backwardsC
getting at least three or four men to push down on the side containing the CO2 cylinderD
doing nothing; it will right itself after the canopy supports inflate
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