Fire extinguishers of sizes III,IV,and V are designated as().
A、portable
B、semi-portable
C、fixed
D、disposable
A、portable
B、semi-portable
C、fixed
D、disposable
A、Any one component can be eliminated to extinguish a fire B、Any two components must be eliminated to properly extinguish a fire C、Any three components must be eliminated to properly extinguish a fire D、Ali four components must be eliminated to extinguish any fire
A、Close all fire doors and use the dry powder extinguisher. B、Close all fire doors and use the foam extinguisher. C、Close all fire doors and use the CO2 extinguisher. D、Close all fire rooms and use the dry powder extinguisher.
A、CO2 (carbon dioxide) fire extinguishers B、foam fire extinguishers C、water (stored pressure) fire extinguishers D、All of the above
A、A.utilizing carbon dioxide or dry chemical fire extinguishers B、B.utilizing soda and acid fire extinguishers C、C.blowing the flames out D、D.letting it burn itself out
A、sweep flames away with water spray B、shut off the leak C、use a chemical foam fire extinguisher D、call the local fire department