航海英語(yǔ)船舶強(qiáng)度資料單項(xiàng)選擇題每日一練(2019.01.07)

來(lái)源：考試資料網(wǎng)

1 How do the height and location of a tug’s towing bitts relate to the danger of tripping?（）

2 High clouds，composed of small white flakes or scaly globular masses，and often banded together to form a “mackerel sky”，would be classified as（）.

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3 Halon fire extinguishers are NOT effective when used on which types of fires?（）

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4 Guide tolerances during elevation of the jack-up rig will（）.

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5 How is the external flotation bladder of an immersion suit inflated?（）

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