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

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

第1题

[单选题] A block and tackle is rove to advantage. This means that the（）.

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

[单选题] A block and tackle is “rove to advantage”. This means that the（）.

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

[单选题] A block and tackle is “rove to advantage”. This means that the（）.

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

[] The standing part of a tackle is（）.

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5题

[单选题] Neglecting friction，you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgs.Which of the following tackles would you use（）.

A、Gun tackle B、Luff tackle C、Two-fold tackle D、Double-luff tackle

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第6题

[单选题] Neglecting friction，you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgs.Which of the following tackles would you use?（）.

A、Gun tackle B、Luff tackle C、Two-fold tackle D、Double-luff tackle

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第7题

[单选题] Neglecting friction, you desire to life a 300 kgs weight with a stress on the hauling part of 100kgs.Which of the following tackles would you use ?（）.

A、Gun tackle B、Luff tackle C、Toe-fold tackle D、Double-luff tackle