航海英語(yǔ)海上氣象報(bào)告與氣象導(dǎo)航單項(xiàng)選擇題每日一練(2019.01.06)

來(lái)源：考試資料網(wǎng)

1 When force of winds reaches 10-11 in Beaufort scale，we usually call such wind（）.

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2 Widely spaced isobars on a weather map indicate（）.

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3 A tropical storm is building strength some distance from your ship. Waves are coming from the east，with periods increasing from 5 seconds to 15 seconds. The swell is from the east. Where was the storm when these new swells were generated? （）

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4 It is predicted that heavy rains are（）to flood the harbor and its vicinity in a few days.

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5 A mercurial barometer at sea is subject to rapid variations in height (pumping) due to the pitch and roll of the vessel. To avoid this error，measurements of atmospheric pressure at sea are usually measured with a(n)（）.

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