NFPA 10 EXTINGUISHER MAINTENANCE CH. 7.3 Exam 38 Questions with Verified Answers,100% CORRECT

NFPA 10 EXTINGUISHER MAINTENANCE CH. 7.3 Exam 38 Questions with Verified Answers Maintenance procedures requires a thorough examinations of what basic elements of an fire extinguisher? - CORRECT ANSWER *All mechanical part of extinguisher *extinguishing agent *expelling means *physical condition when subjected to temperatures at or above the listed rating, store pressure fire extinguishers that require a 12yr hydrostatic test shall be - CORRECT ANSWER emptied and subjected to the applicable maintenance and recharge procedures on an annual basis. maintenance for stored pressure loaded stream - CORRECT ANSWER 1yr maintenance for pump tank water and pump tank, calcium chloride based - CORRECT ANSWER 1yr maintenance for dry chemical, cartridge and cylinder operated, with mild steel shells - CORRECT ANSWER 1*yr maintenance for dry powder, cartridge, and cylinder-operated, with mild steel shells - CORRECT ANSWER 1*yr maintenance for wetting agents - CORRECT ANSWER 1yr maintenance for stored pressure water - CORRECT ANSWER 5yrs maintenance for AFFF - CORRECT ANSWER 3 plus yrs. maintenance for FFFP - CORRECT ANSWER 3 plus yrs. maintenance for stored pressure dry chemical, with stainless steel shells - CORRECT ANSWER 5yrs. maintenance for carbon dioxide - CORRECT ANSWER 5yrs. maintenance for wet chemicals - CORRECT ANSWER 5yrs. maintenance for dry chemical stored pressure, with mild steel shells, brazed brass shells, and aluminum shells - CORRECT ANSWER 6yrs maintenance for halogenated agents - CORRECT ANSWER 6yrs maintenance for dry powder, stored pressure with mild steel shells - CORRECT ANSWER 6yrs dry chemical and dry powder in cartridge or cylinder operated extinguishers are examined - CORRECT ANSWER annually the extinguishing agent in liquid charge type AFFF and FFFP extinguishers are replaced - CORRECT ANSWER every 3yrs and internal examination(tear down) is normally conducted at that time. (loaded stream)stored pressure type extinguishers with loaded stream agent shall be - CORRECT ANSWER *dis-assembled on an annual basis and subjected to complete maintenance. *loaded stream charge shall be permitted to be recovered and re-used, provided it is subjected to agent analysis in accordance with the extinguishers manufacturer's instructions *when the internal maintenance procedures are performed during periodic recharging or hydrostatic testing, the 1-year requirement shall begin from that date. maintenance tag or label shall have at least the following - CORRECT ANSWER *month and year maintenance was performed * person performing the work *name of agency performing the work each extinguisher that has undergone maintenance that includes internal examination, except cartridge or cylinder operated and pump tank extinguishers shall have - CORRECT ANSWER a verification- of- service collar located around the neck of the container. every 6yrs, stored pressure fire extinguishers that require a 12yr hydrostatic test shall - CORRECT ANSWER *be emptied and subjected to the applicable internal and external examination procedures. *when maintenance is performed during periodic recharging or hydrostatic testing, the 6yr requirement shall begin from that date the removal of agent from an halon fire extinguisher shall only be done by - CORRECT ANSWER using a listed halon closed recovery system non-rechargeable fire extinguisher shall not be - CORRECT ANSWER *required to have a 6yr internal examination and shall not be hydrostatically tested but shall be removed from service at a maximum interval of 12yrs the date of manufacture. *non-rechargeable halon extinguishers shall be taken out of service, shall not be discharged and returned to the manufacturer, fire equipment dealer, or distributor to permit halon recovery conductivity test on carbon dioxide hose assemblies shall be conducted - CORRECT ANSWER *annually *and if carbon dioxide hose assemblies fails the conductivity test, it shall be replaced all rechargeable type fire extinguishers shall be - CORRECT ANSWER recharged after any use or when the need is indicated by an inspection or servicing after recharging, a leak test shall be performed - CORRECT ANSWER on stored pressure and self-expelling type fire extinguishers multipurpose dry chemicals shall not - CORRECT ANSWER be alkaline-based dry chemicals the remaining dry chemical in a discharged fire extinguisher shall be - CORRECT ANSWER *permitted to be reused , provided that it is thoroughly checked for proper type, contamination, and condition *dry chemical found to be of the wrong type shall not be reused dry chemical agent shall be permitted to reused if - CORRECT ANSWER a closed recovery system is used and the agent is stored in a sealed container to prevent contamination dry chemical closed recovery system shall be constructed - CORRECT ANSWER *in a manner not to introduce foreign material into the agent being recovered. *the system shall have means of inspection of the recovered agent for contamination pails and drums containing dry powder agents for scoop and shovel application for use on metal fires shall be - CORRECT ANSWER *kept full and sealed with the lid provided with the container *the dry powder shall be replaced if found to be damp for all non-water type extinguishers, any moister shall be - CORRECT ANSWER removed before recharging halogenated fire extinguishers shall be charged only - CORRECT ANSWER with the type and weight of agent specified on the name plate the removal of halon 1211 from fire extinguishers shall be done using - CORRECT ANSWER only a halon closed recovery system the vapor phase of carbon dioxide shall not be less than - CORRECT ANSWER *99.5 percent carbon dioxide *the water content shall not be more than 60 parts per million by weight at -52 degrees F(-47 c.) dew point *oil content shall not exceed 10ppm by weight wet chemicals and water mist agents shall not be - CORRECT ANSWER *reused *if partially discharged, all remaining wet chemical or water mist shall be discarded *only the agent specified on the extinguisher name plate shall be used for recharge (verification-of-service collar exemptions) - CORRECT ANSWER *new extinguisher requiring a initial recharge in the field(such as pressurized water, AFFF, FFFP, or wet chemical extinguishers) *liquefied gas, halogenated agent, and carbon dioxide extinguishers that have been recharged without valve removal *cartridge and cylinder-operated extinguishers shall not be required to have