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TYPE B LICENSE: TFM02 QUESTONS AND ANSWERS
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TYPE B LICENSE: TFM02 QUESTONS AND ANSWERS
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TYPE B LICENSE: TFM02 QUESTONS AND ANSWERSWhen an inspection of a nonrechargeable dry chemical fire extinguisher reveals a deficiency, you must: - answer- -removed from further use
-discharged
-destroyed at the direction of the owner or returned to the manufacturer
When an inspection of a nonrechargeable fire extinguisher containing a halon agent reveals a deficiency, you must: - answer- -remove from service
-DO NOT not discharge
-return to the manufacturer, a fire equipment dealer, or a distributor to recover the halon
ASTM - answer- American Society for Testing and Materials
UL - answer- Underwriter's Laboratories
ANSI - answer- American National Standards Institute (rules and requirements for first aid)
Dry Chemical - answer- A powder inside an extinguisher:
-composed of small particles (usually sodium bicarbonate, potassium bicarbonate, or ammonium phosphate)
-provides resistance to packing, caking
-ensures proper flow capabilities
When a low-pressure cylinder passes a hydrostatic test, you must affix a label to the extinguisher stating the: - answer- -test pressure used -month and year performed
-initials of person performing the test
Liquefied gas, halon, and CO2 extinguishers that have been recharged without valve removal: - answer- do not require a verification collar after service
T or F? Cartridge extinguishers do not have to have a verification collar installed after maintenance. - answer- True
What is typically replaced during an extinguisher recharge? - answer- O ring
What is typically replaced after maintenance or hydrostatic testing? - answer- O ring and valve stem
Wet Chemical - answer- -water-based solution of organic or inorganic salts that form an extinguishing agent
-liquid suffocates the fire Clean Agent - answer- -Halogenated agent
-won't damage parts/equipment
-for B or C Fires
-keeps high value electronics and machines safe
-does not leave residue
High-Pressure Cylinder - answer- -CO2 cylinders
-pressure higher than 500 psi
Low-Pressure Cylinder - answer- -ABC cylinders
-cylinders containing fire extinguishing agent, compressed air, or compressed gases
-pressure of 500 psi or lower
Dry Powder - answer- -solid materials in powder form designed to extinguish Class D combustible metal fires by crusting or smothering the metals
Extinguisher Inspection (monthly) - answer- -quick check that a fire extinguisher is in it's designated place, that it has not been tampered with, and that there is no obvious physical damage
Extinguisher Maintenance (annual) - answer- -thorough examination intended to give assurance that a fire extinguisher will operate effectively and safely -to determine if physical damage or condition will prevent operation -to determine if repair or replacement is necessary -to determine if hydrostatic testing or internal maintenance is required
Halogenated Agents - answer- -clean agent used to extinguish B or C fires
Hydrostatic Testing - answer- -pressure testing an extinguisher to verify its strength against unwanted rupture
Mild Steel Shell - answer- -all steel shells (other than stainless steel and steel shells) used for high-pressure cylinders
Extinguisher Service Pressure - answer- -normal operating pressure as indicated on the
cylinder of the extinguisher
Dry-Chemical stored-pressure extinguishers manufactured before October 1984 should be removed from service - answer- -at their next 6 year maintenance
Selection of fire extinguishers must be based on these things: - answer- -type of fire most likely to occur
-size of fire most likely to occur
-hazards in the area -energized electrical equipment in the area
-ambient temperature conditions
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