When the derrick changes its （）(角度), its lifting capacity changes correspondingly.

A、angel

B、length

C、height

D、angle

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更多“When the derrick changes its （）(角度), its lifting capacity changes correspondingly.”相关的问题

第1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2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3题

[单选题] Release the （）(制动器)when letting go the anchor.

A、stopper B、brake C、locker D、derrick

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第4题

[] 请调高一下吊杆。（）

A、A. Lower the derrick, please. B、B. Top the derrick, please. C、C. Swing the derrick, please. D、D. Adjust the derrick, please.

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第5题

[] The （）(吊杆托架) supports the derrick.

A、A. derrick boom rest B、B. derrick head C、C. derrick mast D、D. derrick guy

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第6题

[单选题] 起货机出故障时，水手要去叫电工来修理。（）

A、When the windlass is in trouble, the sailor must go and call the electrician to repair it. B、When the derrick is in trouble, the sailor must go and call the electrician to repair it. C、When the winch is in trouble, the sailor must go and call the electrician to repair it. D、When the winch is in trouble, the sailor must go and call the carpenter to repair it.

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第7题

[单选题] When the derrick is stopped, the guy must be（）.

A、take in B、slacked off C、stowed D、taken

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第8题

[单选题] 请修理一下受损吊杆。（）

A、Please have the damaged derrick readjusted. B、Please have the damaged derrick repaired. C、Please have the damaged derrick painted. D、Please have the damaged derrick brushed.

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第9题

[单选题] When the derrick is stopped, the guy must be （）(收好).

A、taken in B、slacked off C、adjusted D、stowed

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第10题

[单选题] When the derrick is topped, the guys must be （）.

A、slacked off B、send away C、taken in D、send out

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