Type B- TFM02 with complete solution Graded A+

T/F A three dimensional fire often involves static flammable liquid. - False. 3D fires involve flammable liquid in motion as well as both horizontal and vertical surfaces. Class A fire extinguisher are ok for ___________, ____________, ______________, and _______________. They offer the coating effects of dry chemicals. - wood, paper, some plastics, and textiles When should dry chemical stored pressure fire extinguishers be removed and replaced? - at their next 6 year maintenance or hydrostatic test interval Concerning the UL rating, B:C rating refers to... - the amount of sq footage an extinguisher covers T/F Class B fire extinguishers cannot handle flammable liquids. - False Employees must be trained in proper use of all portable fire extinguishers according to... - CRF29 Portable fire extinguishers need to be VISUALLY inspected at least ____________ according to ______________________. - Monthly, 29 CFR 1910.157 (e) (2) Which extinguishers should not be used for fire that involves live electrical equipment? - Class A/B extinguishers Water or steam fire extinguishers need to be discharged, disassembled, and inspected at least... - annually An extinguisher weighing over 40 lbs should be installed so the top is no more than __________ from the ground. - 3.5 ft What is the OSHA specified max travel distance to get to a Class B extinguisher? - 50 ft Dry chemical extinguishers require ________ to be emptied for maintenance. While, hydrostatic tests are every _________. - 12 years, 6 years A rated UL extinguisher is how many gallons of water? - 1.25 Class C fire extinguishers use _______________ _____________ extinguishing agents. - electrically nonconductive Cartridge operated water based portable extinguishers need hydrostatic testing every - 5 years When do Stored pressure type of extinguishers need INTERNAL examination? - never Extinguishers weighing 40 lbs or LESS must be installed so the top of the canister is no more than....... - 5 ft above the ground Class _______ extinguishers are for fires involving cooking media. - K What is the OSHA specified max travel distance for a Class A extinguisher? - 75 ft What is the proper UL rating for an extinguisher that is electrically energized equipped? - C Class ________ work on the principle of saponification. - K What type of fires involve a flammable liquid on a horizontal surface with the presence of a solid object creating a barrier? - Obstacle type fires Extinguishers must be installed ___________ from the ground. - 4 inches Where might Obstacle type fire take place? - in flammable liquid storage cabinets, dip tank process areas, ect. To make sure the pressure gauges of CO2 extinguishers are showing adequate pressure, what must you do? - must be weighed Wetting agent portable extinguishers must be hydrostatic tested every ___________. - 5 years When should leak tests be performed on stored pressure extinguishers? - after recharge How do you convert fire extinguishers from one type to another? - you don't When can remaining dry chemicals in a discharged extinguisher be used and under what circumstances? - only if checked for proper type, contamination, and condition. CLOSED RECOVERY system needs to be used! Under what circumstances do extinguishers not need any verification of service collar installed? #1 - #1 new extinguishers needing charge in the field How do you have an extinguisher converted to use a different type of extinguishing agent? - you don't When does the gauage used to set the regulated source of pressure need to be calibrated? - annually When does a pump tank calcium chloride based antifreeze extinguisher need to be recharged? - annually What is the OSHA specified max distance to a Class D extinguisher? - 75 ft When recharging, how should the amount of recharge agent be verified? - by weighing What type of extinguishers must have hydrostatic tests every 5 years? - Aqueous Film Forming Foam (AFFF) When should the wetting agent in stored pressure wetting extinguishers be replaced? - annually When should the premized agent in liquid charge AFFF and FFFP extinguishers be replaced? - every 3 years Under what circumstances do extinguishers not need any verification of service collar installed? #2 - #2 cylinder-operated extinguisher T/F You are free to mixmultipurpose dry chemicals with alkaline based dry chemicals. - False What circumstance should be avoided? - subsurface injection of wet chemical extinguishing agents into hot cooking media T/F You should NEVER place extinguishers in cabinets or wall recesses. - False How often must CO2 portable extinguishers go through hydrostatic testing? - 5 years What are special hazards? - pressurized gas fires and pressurized flammable liquids What type of extinguishers with agents other than dry chemicals are not very effective on special hazards? - type B How do you adjust regulators that are utilized on wheeled fire extinhuishers? - Do not attempt