The boom indicator on a crane will indicate the（）.

A、length of the boom

B、angle of the boom

C、lifting capacity of the boom

D、direction of the boom

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更多“The boom indicator on a crane will indicate the（）.”相关的问题

第1题

[单选题] The boom indicator tells the operator at what angle the boom is compared to the（）.

A、horizontal position of the boom B、vertical position of the boom C、horizontal position of the load being lifted D、vertical position of the load being lifted

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第2题

[单选题] 0n a crane ,the boom indicator tells the operator what angle the boom angle is compared to the（）.

A、vertical position B、horizontal position C、boom stop angle D、minimum radius angle

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第3题

[单选题] What is meant by the term TOPPING THE BOOM?（）

A、Lowering the boom B、Raising the boom C、Spotting the boom over the deck D、Swinging the boom athwartships

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第4题

[单选题] The boom stops are installed on an offshore crane to（）.

A、prevent the boom from being raised too high B、prevent the boom from swinging C、support the boom when not in use D、prevent the boom from being lowered

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第5题

[单选题] What is meant by the term“luffing the boom”of a crane（）．

A、Stopping the boom B、Topping or lowering the boom C、Moving the boom left or right D、All of the above

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第6题

[单选题] The best way to determine if a load is within maximum lift limits is to use（）.

A、a boom angle indicator B、a load weight indicator C、material invoices for shipping weights D、prior experience with similar lifts

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第7题

[单选题] With a given load on the cargo hook，tension in a single span topping lift（）.

A、increases as the boom's angle to the horizontal increases B、is at a maximum when the boom is at a 45° angle to the horizontal C、increases as the boom's angle to the horizontal decreases D、decreases as the boom's angle to the horizontal decreases