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【单选题】

（） are two vertical supports，usually steel，one each side of the centerline of the ship used to support booms.

A、Shrouds

B、King posts

C、Stays

D、Turnbuckles

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更多“（） are two vertical supports，usually steel，one each side of the centerline of the ship used to support booms.”相关的问题

第1题

[单选题] A vessel servicing a pipeline during the day shall display（）.

A、three black shapes in a vertical line; the highest and lowest are balls，and the middle one is a diamond B、three shapes in a vertical line; the highest and lowest are red balls，and the middle one is a white diamond C、three black balls in a vertical line D、two black balls in a vertical line

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第2题

[单选题] A power-driven vessel pushing aheador towing alongside displays navigation lights and（）.

A、two all-round red lights in a vertical line B、two yellow towing lights in a vertical line C、two white masthead lights in a vertical line D、two lights on the stern，one yellow and one white

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第3题

[单选题] A vessel not under command making way at night would show（）.

A、two all-round red lights in a vertical line B、anchor lights and sidelights C、two all-round white lights in a vertical line，sidelights and a stern light D、two all-round red lights in a vertical line，sidelights，and a stern light

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第4题

[单选题] The intake ports of a two-strike/cycle diesel engine are opened and closed by the action of the （）

A、camshaft B、piston movement C、exhaust valves D、vertical drive

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第5题

[单选题] A 20-meter power-driven vessel pushing ahead or towing alongside will display（）.

A、a single white light forward B、two masthead lights in a vertical line C、two towing lights in a vertical line D、two all-round red lights where they can best be seen

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第6题

[单选题] A vessel fishing at night，with gear extending more than 150 meters horizontally outwards，will show in the direction of the gear（）.

A、one white light B、two vertical white lights C、one yellow light D、two vertical yellow lights

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第7题

[单选题] A vessel towing a barge astern would show，at the stern（）.

A、only a stern light B、a towing light above the stern light C、two towing lights in a vertical line D、two white lights in a vertical line

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第8题

[] A vessel constrained by her draught may，in addition to the lights prescribed for power-driven vessels in Rule 23，exhibit where they can best be seen（）or a cylinder.

A、A.two all-round red lights in a vertical line B、B.three all-round red lights in a vertical line C、C.two all-round yellow lights in a vertical line D、D.three all-round green lights in a vertical line

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第9题

[单选题] During the day，a dredge will indicate the side on which it is safe to pass by displaying（）.

A、two balls in a vertical line B、two diamonds in a vertical line C、a single black ball D、no shape is shown during the day

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