航海英語號燈與號型單項(xiàng)選擇題每日一練(2019.01.12)

來源：考試資料網(wǎng)

1 All fog signals shall be sounded every two minutes with the exception of a vessel（）.

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2 During the day，a vessel with a tow over 200 meters in length will show（）.

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3 A red triangular daymark marks（）.

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4 Environmental loading consists of the forces caused by wind，waves，and（）.

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5 Some lights used as aids to marine navigation have a red sector to indicate a danger area. The limits of a colored sector of a light are listed in the Light List in which of the following manners?（）

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