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單項選擇題

When vessel enters thick fog, she should sound（）every two minutes in accordance with the rules.

A.one short blast
B.one prolonged blast
C.two short blasts

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單項選擇題

When there is not a chief officer on board,（）should keep and write up the ship’s logbook.

A.the assistant officer
B.the captain
C.the officer on duty
D.the third officer

單項選擇題

Which one of two crossing power-driven vessels has the right of way in a fog?（）.

A.Both vessels
B.Neither vessel
C.The stand-on vessel
D.The giving-way vessel

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