In cargo crane, （） for lifting the load.

A、a hoisting motor

B、a luffing motor

C、a mooring motor

D、a slewing motor

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更多“In cargo crane, （） for lifting the load.”相关的问题

第1题

[单选题] Which statement is TRUE concerning the tandem working arrangement of pedestal cranes when completing a quad lift? （）

A、The discharge is slow due to the size of the cargo and all the cranes working together B、The cargo discharge can be accomplished with controlled pendulation C、The cargo discharge can be performed in port or at anchor D、The cranes enable the handling of heavy cargos without shoreside assistance

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第2题

[] In a ordinary cargo crane, （） is fitted to rotate the crane.

A、A.the slewing motor B、B.the lulling motor C、C.the hoisting motor D、D.none of the above

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第3题

[单选题] In a general cargo crane, （） is fitted to lift the cargo load.

A、the slewing motor B、the luffing motor C、the hoisting motor D、none of the above

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第4题

[] The （）(笨重货) must be handled by jumbo boom or shore crane.

A、A. awkward cargo B、B. drummed cargo C、C. cased cargo D、D. heavy cargo

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第5题

[单选题] In a general cargo crane, three principal movements are （）；（）；（）.

A、hoisting；luffing；slewing B、lifting；raising；lowering C、rotating；raising；handling D、hosting；lowering；moving

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第6题

[单选题] Which statement(s) is/are TRUE concerning crane cargo operations? （）

A、Do not exceed rated load capacity of crane and container spreader or slings B、During any cargo handling operation，the safety of personnel is paramount C、Cargo handlers must be outfitted with adequate protection from personal injury D、All the above

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第7题

[单选题] Which statement comparing a shipboard crane to conventional gear is TRUE（）.

A、Cranes are more difficult to secure for sea B、The spotting area of the conventional gear is larger C、A crane operator requires more training than the winch operator of a yard and stay rig D、The yard and stay rig is more flexible in its ability to handle a wider variety of cargoes