Which statement(s) is/are TRUE concerning crane cargo operations?A.Do not exceed rated load capacity of crane and container spreader or slingsB.During any cargo handling operation，the safety of personnel is paramountC.Cargo handlers must be outfitted with

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Which statement(s) is/are TRUE concerning crane cargo operations?

A.Do not exceed rated load capacity of crane and container spreader or slings

B.During any cargo handling operation，the safety of personnel is paramount

C.Cargo handlers must be outfitted with adequate protection from personal injury

D.All the above

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Which statement is FALSE regarding the operation of a crane ________．A.The crane jib is raised and lowered by the luffing winchB.The cargo block is raised and lowered by the hoisting winchC.The cargo block is raised and lowered by the luffing winchD.None of the above

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第2题

Which safety precaution（s）should be observed during crane operations ________．A.Checking for proper lifting from beneath the load during cargo operationsB.Using the proper slings or other lifting devices during cargo operationsC.Relaying communications to port agents on the pier during cargo hoistsD.All of the above

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第3题

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第4题

Which statement is TRUE concerning the flash point of a substance ________．A.It is lower than the ignition temperatureB.It is the temperature at which a substance will spontaneously igniteC.It is the temperature at which a substance，when ignited，will continue to burnD.It is the temperature at which the released vapors will fall within the explosive range

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第5题

When a cargo boom or crane is rated at varying capacities，there will be a table at the controls which relates safe working load to ______．A.winch speedB.boom strengthC.load radiusD.cable strength

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第6题

Which action（s）are included in crane operations ________．A.Pre-operation of the anchor windlassB.Preparing steam on deckC.Luff，slew，and hoist operationsD.All of the above

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第7题

Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set ________．A.The cranes may be operated independentlyB.The cranes may be interconnected for twin operationC.When twinned，the crane rotation on the foundation assembly is unlimitedD.All of the above

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Which statement(s) is／are TRUE concerning crane cargo operations?A.Do not exceed rated loa

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