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The tackle that raises and lowers the boom is().

A、the cargo fall

B、The cargo hoisting wire rope

C、the topping lift

D、the cargo whip

更多“The tackle that raises and lowers the boom is().”相关的问题
第1题

A、blocks have been overhauled  B、hauling parts of two tackles are attached  C、hauling part leads through the movable block  D、hauling part leads through the standing block  

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第2题

A、blocks have been overhauled  B、hauling parts of two tackles are attached  C、hauling part leads through the movable block  D、hauling part leads through the standing block  

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第3题

A、blocks have been overhauled  B、hauling parts of two tackles are attached  C、hauling part leads through the movable block  D、hauling part leads through the standing block  

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第4题

A、A.all the fall except the hauling part  B、B.the hook that engages the weight to be moved  C、C.that part to which power is applied  D、D.that part of the falls made fast to one of the blocks  

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第8题

A、Single whip  B、Gun tackle  C、Luff tackle  D、Twofold purchase  

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