单项选择题
A.cool the craft in a fire B.cool the engine C.spray oil on the sea to calm it D.spray personnel during a fire
The spread of fire is prevented by（）.A.cooling surfaces...
单项选择题The spread of fire is prevented by（）.
A.cooling surfaces adjacent to the fire B.leaving combustibles in the endangered area C.increasing the oxygen supply D.All of the above
The spread of fire is NOT prevented by（）.A.shutting off...
单项选择题The spread of fire is NOT prevented by（）.
A.shutting off the oxygen supply B.cooling surfaces adjacent to the fire C.removing combustibles from the endangered area D.removing smoke and toxic gases by ensuring adequate ventilation
The remote control for a fixed fire extinguishing syste...
单项选择题The remote control for a fixed fire extinguishing system should be（）.
A.painted red and labeled B.concealed from the crew C.protected by plexiglass D.padlocked
