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
更多“Which is a distress signal? （）”相关的问题
A、If no answer is received on the designated distress frequencies，repeat the distress call on any frequency available B、Channel 16 (156.8) may be used for distress messages C、It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds duration D、Distress messages should first be transmitted on 2182 kHz
A、Distress messages should first be transmitted on 2182 kHz B、Channel 16 (156.8 MHz) may be used for distress messages C、If no answer is received on the designated distress frequencies，repeat the distress call on any frequency available D、It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds duration
A、A.Distress messages should first be transmitted on 2182 kHz B、B.It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds duration C、C.If no answer is received on the designated distress frequencies，repeat the distress call on any frequency available D、D.Channel 16 (156.8 MHz) may be used for distress messages
A、Vessels nearer the distress vessel acknowledge receipt B、Vessels nearer the distress vessel fail to acknowledge receipt C、Even you have not reveived the distress D、Even the vessel in distress expressly prohibit you from providing any salvage service
A、A.When the distress alert is sounded B、B.When the emergency equipment is switching on C、C.When the general emergency alarm is sounded D、D.When the distress broadcast is sounded
A、No action is necessary，as the DSC control unit will automatically switch to the NBDP follow-on communications frequency B、The operator should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band on which the distress alert was received C、The Operator should immediately set continuous watch on VHF channel 70 D、The Operator should immediately set continuous watch on the NBDP frequency that is associated with the frequency band on which the distress alert was received
A、The vessel would arrive at the distress scene more than 36 hours after the receipt of the initial distress message B、There are vessels closer to the distress scene that are proceeding to assist C、The Master of the vessel in distress has requisitioned another vessel，and that vessel has accepted the requisition D、You are on a tank vessel and the distress involves a major fire on board the other vessel
A、A.The vessel would arrive at the distress scene more than 36 hours after the receipt of the initial distress message B、B.There are vessels closer to the distress scene that are proceeding to assist C、C.The Master of the vessel in distress has requisitioned another vessel，and that vessel has accepted the requisition D、D.You are on a tanker and the distress involves a major fire on board the other vessel
A、indicate the ship in distress that the alert has been received B、alert ships in the area of a distress incident that a distress has occurred C、inform other coast station of distress incident D、repeat the distress alert in 5 minutes
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