搜题

【单选题】

A tackle is “two blocked” when the blocks are（）.

A、equally sharing the load

B、jammed together

C、as far apart as possible

D、rove to the highest mechanical advantage

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更多“A tackle is “two blocked” when the blocks are（）.”相关的问题

第1题

[单选题] A tackle by which the outer end of a boom is raised and lowered is the topping（）.

A、Boom B、Lift C、Raise D、Tackle

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第2题

[单选题] A tackle by which the outer end of a boom is raised and lowered is the topping（）.

A、boom B、lift C、raise D、tackle

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第3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4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5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

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第6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7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8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9题

[单选题] Which tackle arrangement has the LEAST mechanical advantage（）.

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

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第10题

[单选题] A metal ring on the bottom of a block，to which the standing part of a tackle is spliced，is known as a(n)（）.

A、becket B、loop C、swivel D、eye

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