The emergency signal for fires is sounded on the ship’s whistle and general alarm as _____.A.a continuous ringing for 10 secondsB.one short ring followed by one long ringC.two long rings of at least 20 secondsD.a continuous ringing until the fire is extinguished
The emergency signal for fires is sounded on the ship’s whistle and general alarm as _____.
A.a continuous ringing for 10 seconds
B.one short ring followed by one long ring
C.two long rings of at least 20 seconds
D.a continuous ringing until the fire is extinguished
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