航海英語緊急用語單項(xiàng)選擇題每日一練(2019.01.15)

來源：考試資料網(wǎng)

1 What is the normal length of anchor cable used to anchor a vessel?（）

2 The expression FIRST MAGNITUDE is usually used to refer only to bodies of magnitude（）.

3 A message giving warning of a hurricane should have which prefix when sent by radiotelephone?（）

4 When testing a Class A EPIRB you will know the EPIRB is working properly if you hear on 99.5 Mhz FM or any vacant frequency on a nearby AM radio（）.

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5 Which of the following indicates a grave and imminent danger requesting immediate assistance on radio telephone?（）.

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