A.Hydraulic oil
B.Lubricating oil
C.Diesel oil
D.Refrigeration oil
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A.CO2
B.ABC dry chemical
C.CO2 propelled foam
D.All of the above
A.CO2
B.Foam
C.Water fog
D.Soda acid
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
A.mechanical foam
B.chemical foam
C.carbon dioxide
D.soda acid
A.Dry chemical
B.Halon
C.Low velocity fog
D.Steam
最新試題
The condensers located in various stages of a flash evaporator are cooled by（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
（） is not installed on the main switchboar.
Flame failure in an automatically fired auxiliary boiler can from a/an （）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Diesel engine air start system check valves are opened by （）
To proceed to the assistance of a ship in distress is（）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
The cetane rating of diesel fuel is an indication of the （）