单项选择题

The radiotelephone safety signal is（）.

A.securite repeated 3 times
B.safety repeated 3 times
C.pan pan repeated 3 times
D.securite securite repeated 3 times

相关考题

One of the signals，other than a distress signal，that ca...

单项选择题One of the signals，other than a distress signal，that can be used by a rescue boat to attract attention is a/an（）.

A.red star shell
B.searchlight
C.burning barrel
D.orange smoke signal

On offshore drilling units，each EPIRB or SART must be t...

单项选择题On offshore drilling units，each EPIRB or SART must be tested once every（）.

A.day
B.week
C.month
D.year

How can vessel personnel detect the operation of a SART...

单项选择题How can vessel personnel detect the operation of a SART in its vicinity?（）

A.A unique radar signal consisting of a blip code radiating outward from a SART's position along its line of bearing
B.A unique two tone "warbling" signal heard on VHF-FM ch-70
C.A unique two tone alarm signal heard upon the automatic unmuting of the 2182 kHz radiotelephone automatic watch receiver
D.The SART signal appears as a target which comes and goes; the effect of heavy swells on the SART

安全通信

The radiotelephone safety signal is（）.