One of the signals，other than a distress signal，that can be used by a vessel to attract attention is a(n)（）.
The signal to guide vessels in distress，which indicates，“This is the best place to land” is the（）.
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（）.
The urgency signal concerning the illness of persons on board ship is（）.
We consider（）send a helicopter with medical facilities to the distress area.
While reading the muster list, you see that "three short blasts on the ships whistle and the same signal on the general alarm bells" is the signal for （）.
（）process the distress signal from EPIRB to determine its position and identity.
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（）.
By regulation，orange smoke distress signals will expire not more than how many months from the date of manufacture?（）
After a vessel transmits the original distress message，what signal should be sent to allow ships to take RDF bearings?（）
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
All of the following are recognized distress signals under the Navigation Rules EXCEPT（）.
The regulations require that inspected vessels on an international voyage，other than small passenger vessels，must carry which of the following distress signals on or near the navigating bridge?（）
Distress signal are always stored in the memory so as to start（）.
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（）.
If the DSC controller is configured for MF/HF operation, the distress will be sent on（）.
（）is the most visible signal of distress from a lifeboat at sea in the daytime.
When a vessel signals her distress by means of a gun or other explosive signal，the firing should be at intervals of approximately（）.
