单项选择题
Which is a distress signal? （）
A.A triangular flag above or below a ball
B.The International Code Signal of distress indicated by "JV"
C.A green smoke signal
D.Flames on the vessel as from a burning tar barrel
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相关考题
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单项选择题
Which EPIRB transmits a distress alert that is received and relayed by an INMARSAT satellite?（）
A.Class A EPIRBs
B.Class B EPIRBs
C.L-Band EPIRBs
D.Category I EPIRBs -
单项选择题
Which condition represents the appropriate time for setting off distress flares and rockets? （）
A.At one hour intervals
B.At half hour intervals
C.Only when there is a chance of their being seen by rescue vessels
D.Immediately upon abandoning the vessel -
单项选择题
Which condition represents the appropriate time for setting off distress flares and rockets? （）
A.Only when there is a chance of their being seen by rescue vessels
B.At half hour intervals
C.At one hour intervals
D.Immediately upon abandoning the vessel
