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
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相关考题
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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 -
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 -
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
