TFM02 exam-with 100% verified solutions 2024-2025, Exams of Advanced Education

Download TFM02 exam-with 100% verified solutions 2024-2025 and more Exams Advanced Education in PDF only on Docsity! TFM02 exam-with 100% verified solutions 2024-2025 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) Written by studybuddy 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 #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 T/F You do not need to keep permanent file record for each extinguisher unless it has been in use for over 1 and 1/2 years. False Permanant File Record is needed for each extinguishers including: maintenance date, name, and agency performing maintenance What is dry nitrogen used as? an expellant gas for stored-pressure fire extinguishers T/F Extinguishers should be CO2 or halogenated agent types when computer equipment is in the location of fire. True What type of fires can halotron fight? A, B, C What is a suitable replacement for a Halon 1211? CleanguardFE 36 because it is less toxic and has 0 ozone depletion potential The pressure in a hydrostatic test of a cylinder shall be maintained for a minimum of __________ second. 30 What can you only use in cartridge operated extinguishers? dry chemical and dry powder ________ _____________ and _______________ extinguishers require 6 and 12 year hydrostatic testing. Dry chemical and halogenated Which extinguishers require 5 year maintenance and hydrostatic testing? Water, AFFF, CO2, and FFFP extinguishers Class A extinguishers are rated for _____________. wood Class B extinguishers are rated for _______________________. 2" depth heptane fires in square pans Explain a fire extinguisher that is rated 4-A and 20 B:C it is twice as much as a 2-A and 20 times as much as a 1:B, suitable for C fires If a cylinder has welding, broken threads, nicks or corrosion, then it is ___________. condemned What is calibrated semiannually? the pressure gauges used on test equipment What is calibrated annually? master gauges What shall not exceed 150 fahrenheit? Drying equipment What cartridges are exempt from periodic hydrostatic testing? DOT 3E and TC 3EM How long should a cylinder be hydrostatic tested for? 30 seconds How long should a hose be pressure tested? maintained for a minimum of 1 minute _______ _____________ _______________, when not specified, shall be tested to factory test pressure, not exceeding 3 times the service pressure. Low Pressure Cylinder What is tested at original factory pressure? Cartridge operated extinguishers Which high pressure cylinders are tested at 5/3 service pressure? DOT3A, 3AA, and 3AL CO2 extinguishers with ICC3 specs are tested at ________________ psi. 3,000