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单项选择题
A.CO2
B.ABC dry chemical
C.CO2 propelled foam
D.All of the above
单项选择题
A.CO2
B.Foam
C.Water fog
D.Soda acid
单项选择题
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
单项选择题
A.mechanical foam
B.chemical foam
C.carbon dioxide
D.soda acid
单项选择题
A.Dry chemical
B.Halon
C.Low velocity fog
D.Steam
单项选择题
A.abandon ship
B.dismissal from drills
C.fire and emergency
D.lower lifeboats
单项选择题
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
单项选择题
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
单项选择题
A.thirsty
B.sick or injured
C.wet
D.awake
单项选择题
A.flash point
B.auto-ignition point
C.volatility point
D.upper explosive limit