Each hand portable fire extinguisher must be marked with（）.

A . Point the horn down B . Turn cylinder upside-down C . Break the rupture disc D . Pull pin，squeeze gri

A . carried by hand to a fire B . carried or rolled to a fire C . recharged in the field D . used on class "B" fire

A . mattress fires B . oil fires C . wood fires D . All of the above

A . solid materials such as wood or bales of fiber B . flammable liquids C . electrical equipment D . metallic solid

A . invert the CO extinguisher B . squeeze the two trigger handles together C . remove the locking pin D . open the discharge valve

A . the CO being inhaled by personnel B . reflash of burning liquids C . vapor condensation on the extinguisher D . the discharge causing a static spark

A . generators B . oil drums C . the bridge controls D . combustible metal

A . solid materials such as wood or bales of fiber B . inflammable liquids C . electrical equipment D . metallic solid

A . Check the tag to see when the extinguisher was last charged B . Release a small amount of CO ; if the CO discharges，the extinguisher is acceptable C . Weigh the extinguisher and compare the weight against that stamped on the valve D . Recharge the extinguisher at least once each year

A . six weeks B . six months C . twelve months D . two year

A . painted yellow with diagonal black striping B . capped and checked for leaks C . coated with non-corrosive protection D . mounted on pallet

A . Dry chemical (cartridge-operated) B . Water (cartridge-operated) C . Water (pump tank) D . Carbon dioxide

A . the name of the unit on which it is located B . the date that it was installed on the unit C . the names of the individuals qualified to use it D . an identification number different from other extinguishers on the unit

A . turning it upside down B . pressing the foam lever C . squeezing the grip handle D . opening the hose valve

A . soild materials such as wood or bales of fiber B . flammable liquids C . a piece of electrical equipment D . combustible metallic solid

A . Point the horn down B . Turn cylinder upside-down C . Break the rupture disc D . Pull pin, squeeze gri

A . generators B . oil drums C . the bridge controls D . combustible metal

A . Carbon dioxide B . Water (stored pressure) C . Foam D . Carbon tetrachloride

A.replaced in its proper location if weight loss is no more than 15% B.replaced in its proper location if weight loss is no more than 25% C.labeled empty and recharged as soon as possible D.labeled empty and replaced in its proper location regardless of weight

A.the date that it was installed on the unit B.the names of the individuals qualified to use it C.the name of the unit on which it is located D.an identification number different from other extinguishers on the unit