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().
When a router converts analog signals to digital signals, what three steps are always included in the process?()
When you are firing a pyrotechnic distress signal,it should be aimed at().
A distress signal().
All of the following are recognized distress signals under the Navigation Rules EXCEPT().
In the COSPAS-SARSAT system distress signals are processed by()and the resulting data are forwarded to()through()communication network.
All of the following are distress signals EXCEPT().
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().
When a router converts analog signals to digital signals, what three steps are always included in the process? ()
GIVE DISTRESS SIGNALS FOR IDENTIFICATION.的意思是:发出遇险求救信号。