A.increase the trim B.increase ship stability C.cause a serious list D.decrease the heeling moment
A.Insure the chemical is powdery B.Replace the cartridge C.Pressure test the discharge hose D.Test the pressure gauge for proper operation
A.Secure all engine room doors，hatches，and vents B.Close the fuel line valve C.Check the spread of the fire with foam D.Cast the barge off the wharf
A.is effective if used promptly on an oil fire B.has a greater cooling effect than water C.is lighter than air D.is harmless to cargo and crew
A.After each use B.When the air temperature exceeds 90°F C.Every 6 months D.Every 12 months
A.Dry chemicals B.CO2 C.Foam D.All the above
A.Conducts electricity B.Difficult to store C.Large volume necessary to be effective D.Ineffective in powdered metal fires
A.CO2 B.Foam C.Dry Chemical D.Water
A.Dry chemical (cartridge-operated) B.Water (cartridge-operated) C.Water (pump tank) D.Carbon dioxide
A.Water B.Foam C.Dry chemical D.Carbon Dioxide
