topping lift（）

A、A.千斤索

B、B.定位滑车

C、C.稳索

D、D.千斤顶

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更多“topping lift（）”相关的问题

第1题

[单选题] A flounder plate，on a topping lift，is（）.

A、a fairlead block B、a swivel pin for the topping lift block C、a triangular steel plate with a hole at each corner D、the lower block of a multiple part topping lift

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第2题

[单选题] The parts of the derrick are: derrick boom rest, gooseneck, center guy, stay, topping lift, topping lift block and so on.（）

A、吊杆的部件有：吊杆支架、鹅颈头、中心稳索、支索、千斤索和千斤索滑车组等。 B、吊杆的部件有：鹅颈头、中心稳索、千斤索、侧稳索、千斤索滑车组和支索等。 C、吊杆的部件有：中心稳索、侧稳索、吊杆支架、鹅颈头、千斤索、和千斤索滑车组等。 D、吊杆的部件有：侧稳索、中心稳索、鹅颈头、吊杆支架、千斤索、和千斤索滑车组等。

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第3题

[单选题] A band or collar on the top end of a boom which the topping lift, midships guy, and outboard guys are secured, is called the（）.

A、collar band B、guy band C、pad eye collar D、spider band

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第4题

[单选题] A band or collar on the top end of a boom to which the topping lift，midships guy，and outboard guys are secured，is called the（）.

A、collar band B、guy band C、pad eye collar D、spider band

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第5题

[单选题] Which is a part of a vessel’s standing rigging（）.

A、Sheet B、Backstay C、Topping lift D、Downhaul