A.removing the heat
B.removing the oxygen
C.removing the fuel
D.interrupting the chain reaction
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A.it is impractical to locate them outside
B.there is also a control valve outside
C.the CO2 cylinders are also in the space
D.an automatic heat-sensing trip is installed
A.NOT contain more than 200 pounds of CO2
B.be automatically operated by a heat actuator
C.have an audible alarm
D.All of the above
A.the discharge valve is open
B.the control box glass is broken
C.pressure from the control cylinders is detected
D.the control cylinders have been completely discharged
A.machinery spaces
B.cargo compartments
C.living quarters
D.galley
A.the single hook at the top of the raft
B.two lines passed under the raft
C.the towing bridle
D.All of the above
A.put back in service if some CO2 remains
B.hydrostatically tested
C.retagged
D.recharged
A.CO2
B.fresh air
C.the tested compartment's air
D.water
A.fuel supply
B.exhaust ventilation
C.supply and exhaust ventilation
D.mechanical and natural ventilation
A.over pressurization of the space being flooded
B.rupture of cylinder due to temperature increase
C.over pressurization of the CO2 discharge piping
D.flooding of a space where personnel are present
A.contaminating food with extinguishing agent
B.spreading through the engineering space
C.causing loss of stability
D.a grease fire in the ventilation system
最新试题
Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by（）.
Control valves of a CO2 system may be located within the protected space when（）.
Fusible-link fire dampers are operated by（）.
Halon from extinguishers used on a class B fire，should be directed（）.
Foam is a very effective smothering agent and（）.
Fire hose should be washed with（）.
Gas masks（）.
How do you operate a portable CO2 fire extinguisher?（）.
Fixed CO2 systems would not be used on crew’s quarters or（）.
Foam extinguishes a fire by（）.