你可能感興趣的試題

單項(xiàng)選擇題

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

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

單項(xiàng)選擇題

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

One of the signals，other than a distress signal，that can be used by a rescue boat to attract attention is a/an（）.

你可能感興趣的試題

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

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

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