A.fuel supply
B.exhaust ventilation
C.supply and exhaust ventilation
D.mechanical and natural ventilation
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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
A.cooling the outside bulkheads with water
B.shutting all sources of air into the compartment
C.closing the sea chest
D.flooding the compartment with salt water
A.contains 15 pounds of CO2
B.weighs 15 pounds when full of CO2
C.has 15 pounds of pressure at the nozzle
D.weighs 15 pounds when empty
A.consealed
B.detained
C.contained
D.kept
最新試題
Fire extinguishers of sizes III，IV，and V are designated as（）.
Halon extinguishers used on a class C fire should be directed at the（）.
Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by（）.
Gas masks（）.
How do you operate a portable CO2 fire extinguisher?（）.
Fixed CO2 systems would not be used on crew’s quarters or（）.
Firefighting foam is only effective when the foam（）.
Fire may be spread by which means?（）.
Except in rare cases，it is impossible to extinguish a shipboard fire by（）.
CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when（）.