Sufficient cargo tanks shall be（）prior to each ballast voyage in order that，taking into account the tanker’s trading pattern and expected weather conditions，ballast water is put only into cargo tanks which have been crude oil washed...

第1题

[单选题] The supply of carbon dioxide used in the fixed extinguishing system aboard a cargo vessel MUST be at least sufficient for（）.

A、all the spaces of a vessel B、all cargo spaces C、the engine room and largest cargo space D、the space requiring the largest amount

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第2题

[] 复合斜面夹角θ交线的方位计算表达式正确的是（）

A、A.tanα＝tanαncosβ B、B.tanφ＝tanα／tanβ C、C.tanθ＝tanα／sinφ D、D.tanθ＝tanα／sinω

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第3题

[单选题] 复合斜面夹角θ角，表达式正确的是（）

A、tanθ＝tanβ／sinφ B、tanθ＝tanα／sinφ C、tanθ＝tanα／sinβ D、tanθ＝tanβ／cosφ

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第4题

[单选题] Once a vessel has loaded packaged hazardous cargo，the cargo spaces shall be inspected. The spaces shall also be inspected at least once in every 24 hours. The only exception to daily inspection is when（）.

A、a vessel is equipped with an automatic smoke or fire detecting system B、the cargo hatches are of steel construction C、the cargo is of a nonflammable type D、there is sufficient fire protection located on the main deck adjacent to the cargo hatch

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第5题

[] 有n个试品的介质损耗因数分别为tanδl、tanδ2、tanδ3、…、tanδn，若将它们并联在一起测得的总tanδ值必为tanδl、…、tanδn中的（）。

A、A.最大值 B、B.最小值 C、C.平均值 D、D.某介于最大值与最小值之间的值

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第6题

[单选题] Vessel on her delivery shall be ready to receive cargo with clean-swept holds and（）and in every way fitted for ordinary cargo service.

A、right，correct and safe B、sufficient，efficient and coefficient C、nice，tidy and in good working condition D、tight，staunch and strong

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第7题

[单选题] Sufficient cargo tanks shall be（）prior to each ballast voyage in order that，taking into account the tanker’s trading pattern and expected weather conditions，ballast water is put only into cargo tanks which have been crude oil washed.

A、inerted B、crude oil washed C、gas freed D、batterned down