A.More than six short blasts and one long blast on the whistle
B.Continuous blast of the ships whistle for a period of not less than 10 seconds supplemented by the same signal on the general alarm
C.Three short blasts of the whistle supplemented by the same signal on the general alarm
D.More than six short blasts and one long blast on the whistle supplemented by the same signal on the general alarm
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A.mechanical foam
B.chemical foam
C.carbon dioxide
D.soda acid
A.Dry chemical
B.Halon
C.Low velocity fog
D.Steam
A.abandon ship
B.dismissal from drills
C.fire and emergency
D.lower lifeboats
A.6 short blasts and 1 long blast
B.long blast mare than 6 short blasts
C.more than 6 short blasts and 1 long blast
D.1 long blast of at least 10 seconds
A.remain in the vicinity of the vessel
B.head for the closest land
C.head for the closest sea-lanes
D.get a majority opinion
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