單項(xiàng)選擇題The Master or person in charge of a ship shall ensure the crane record book shows the（）.
A.Date and description of each failure
B.Average load in pounds for each usage
C.Total number of lifts for each usage
D.All of the above
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1.單項(xiàng)選擇題The item（）is not the advantage of the hydraulic winch．
A.less jerky starts
B.less jerky stops
C.overheating worries
D.none of the overheating worries
2.單項(xiàng)選擇題Sudden starts or stops of the boom is likely to cause all of the following except（）.
A.breaking a cargo runner
B.parting guys topping lifts
C.carrying away a block
D.overheating the resistors and eventually burning out
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What does “evel-luffing” accomplish during crane operations（）.
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Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.
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When discharging an oil cargo，the first consideration is to（）.
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The item（）is not the advantage of the hydraulic winch．
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Most pedestal crane power is provided by（）.
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