单项选择题

The description Racon beside an illustration on a chart would mean a（）.

A.radar transponder beacon
B.radar conspicuous beacon
C.radar calibration beacon
D.circular radiobeacon

点击查看答案&解析

上一题目录下一题

相关考题

单项选择题

The correct method of switching off a marine radar is to turn power switch to（）position first，then to（）position.

A.off／standby
B.standby／off
C.standby／close
D.close／standby

单项选择题

The common way to obtain your ship’s position is（）.

A.keeping a close watch and lookout
B.taking a radar range and bearing
C.observing a radar target and listening to signals
D.keeping a well clear caution

单项选择题

The closest point of approach (CPA) of a contact on a relative motion radar may be determined（）.

A.immediately when the contact is noted on radar
B.only if the radar scope is watched constantly
C.after the contact has been marked at least twice
D.by an occasional glance at the radar