航海英語(yǔ)航海出版物單項(xiàng)選擇題每日一練(2019.01.14)

來(lái)源：考試資料網(wǎng)

1 A marine chemist issues gas free certificates and is certified by which organization? （）

2 （）gives listings of all lighthouses，lightships，lit floating marks（over 8m in height），fog signals and lights of navigational significance.

3 A low HDOP (Horizontal Dilution of Precision) number such as 2 indicates a （）.

4 A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.

5 The information on ocean voyage planning with routeing details for powered and sailing vessels is likely found in（）.