One of the signals,other than a distress signal,that can be used by a vessel to attract attention is a(n)().
One of the signals,other than a distress signal,that can be used by a rescue boat to attract attention is a/an().
All of the following are distress signals under the Rules EXCEPT().
When you are firing a pyrotechnic distress signal,it should be aimed().
Which is NOT a distress signal? ()
Which radiotelephone signal indicates receipt of a distress message?()
()process the distress signal from EPIRB to determine its position and identity.
What is NOT a distress signal?()
If you are on the beach and are signaling to a small boat in distress that your present location is dangerous and they should land to the left,you would().
After a vessel transmits the original distress message,what signal should be sent to allow ships to take RDF bearings?()
When you are firing a pyrotechnic distress signal,it should be aimed at().
A distress signal().
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the().
All of the following are distress signals EXCEPT().
()is the most visible signal of distress from a lifeboat at sea in the daytime.
International distress signal in VHF calling for help is().
What is NOT a distress signal?().
When a vessel signals her distress by means of a gun or other explosive signal,the firing should be at intervals of approximately().
GIVE DISTRESS SIGNALS FOR IDENTIFICATION.的意思是:发出遇险求救信号。