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