The derrick is too low. （）it, please.

A、Lower

B、High

C、Top

D、Adjust

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更多“The derrick is too low. （）it, please.”相关的问题

第1题

[单选题] The derrick is too high.（）it, please.

A、High B、Top C、Adjust D、Lower

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第2题

[] 吊杆停用时，稳索必须要收起来。（）

A、A. When the derrick is stopped, the guy must be stowed. B、B. When the derrick is stopped, the guy must be topped. C、C. When the derrick is stopped, the guy must be lowered. D、D. When the guy is stopped, the derrick must be stowed.

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第3题

[单选题] Look, the derrick is too high. I want it adjusted （）.

A、upwards B、forwards C、downwards D、backwards

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第4题

[单选题] 这个吊杆的安全工作负荷是6吨。（）

A、The SWL of the derrick is five tons. B、The SWL of the heavy derrick is six tons. C、The SWL of the derrick is six tons. D、The SWL of the crane is six tons.

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第5题

[单选题] The safe working load of the （）is 100 tons.

A、single derrick B、derrick C、heavy derrick D、deck

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第6题

[单选题] When the union purchase derrick is operated, one derrick is positioned over the quayside and the other almost vertically over the （）.

A、dock B、hold C、pedestal D、machinery space

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第7题

[单选题] As to the bearing, of the following, which statement is not true?（）

A、ff overheat is found, the engine must be stopped for inspection B、Much heat of the crankcase door indicates that the bearing is overheated C、If bearing clearance is too large, knocking will be heard in the crankcase D、If bearing clearance is too large or too small, the white metal may be melted