A.horizontal motion of a white flag
B.letter K in Morse code given by light
C.code flag S as a hoist
D.firing of a white star signal
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A.forty two months from the date of manufacture
B.thirty six months from the date of the last inspection
C.twenty four months from the date of approval
D.twelve months from the date of purchase
A.12 hand red flares
B.12 rocket parachute flares
C.12 hand combination flares and orange smoke signals
D.6 hand red flares，and 6 hand orange smoke signals
A.the distance of visibility
B.1/2 the distance of visibility
C.a distance appropriate to the existing circumstances and conditions
D.the distance that it would require for the propeller to go from full ahead to full astern
A.ALWAYS be included in the initial distress message
B.be sent to a Coast Guard station FIRST
C.be transmitted as a series of short messages，if time allows
D.include the vessel's draft
A.CSS duties are always assumed by passenger vessels，dry cargo vessels，or tankers in that order of precedence
B.The CSS must be established by mutual agreement between the ships concerned
C.A tank vessel should never be assigned CSS duties unless only tank vessels are present
D.The first vessel to arrive at the distress incident is designated as the CSS
最新試題
Which EPIRB transmits a distress alert that is received and relayed by an INMARSAT satellite?（）
When can routine communications be resumed on a frequency or channel on which radio silence has been imposed? （）
Which is a distress signal? （）
Which signal is recognized as a distress signal?（）
When should distress flares and rockets be used? （）
If your vessel is underway in fog and you hear one prolonged and three short blasts，this indicates a（）.
What is the calling and distress frequency on a single side band (SSB) marine radiotelephone?（）
The service life of distress signals must be not more than（）.
Which signal is detected as originating from a SART?（）
Distress signals may be（）.