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Fire Extinguishing Questions and
Answers 100% Pass
prior to sqeezing the handle of a dry chemical fire extinguisher, the nozzle should be aimed ✔✔At the base of the fire
water type extinguishers exposed to weather below 40 degrees require____to be added ✔✔Anti- freeze
extinguishers suitable for class D fires can be identified by a_____containing the letter D ✔✔Yellow star
Class K fires involve ✔✔High temperature cooking oils, such as vegetable or animal oils and fats
The acronym for the four-step process for proper use of fire extinguishers is ✔✔Pass
the skill of operating a fire extinguisher is fairly easy in____basic steps ✔✔Four
Halon fire extinguishers are primarily designed for use on_____fires ✔✔Class B and C
The National Fire Protection Association required portable fire extinguishers be inspected at least_____to ensure that they are accessible and operable ✔✔Once a year
Water-mist fire extinguishers are safe to use on energized electrical equipment because the water they use is ✔✔D ionized
what factors should be considered when selecting a fire extinguisher ✔✔The fuel
energized electrical equipment and the surrounding area have to be protected with exinguishers that have a_____rating ✔✔Class C
Carbon dioxide exxtinguishers are generally rated for____fires ✔✔Class B and C
what extinguishing agents are being replaced because they have been banned for destroying the earths ozone layer ✔✔Halons or halogenated hydrocarbons
when approaching a fire, stored-pressure water extinguishers are designed to be discharged with the nozzle. ✔✔Aimed at base of fire
A phenomenon that occurs when mixtures of alkaline-based chemicals are certain cooking oils come into contact resulting in the formation of a soapy film is called ✔✔Saponification
which type of portable fire extinguishers is least likely to expose the operator to electrical shock? ✔✔Dry chemical
Class A fire is fueled by ✔✔Ordinary combustible materials
extinguishers suitable for class B fires can be identified by a_____containing the letter B ✔✔Red squared
fires involving flammable liquids and gases where applied foam and or dry chemical ageents will be needed are____fires ✔✔Class B
Gases that do not conduct electricity or leave a residue and are nonvolatile are ✔✔Clean agent
it is dangerous to apply a stream of water to energized electrical equipment because ✔✔Water can conduct electricity back to the extinguisher
how much water is required for a fire extinguisher to receive a 2-A rating ✔✔2 -1/2 gallons
for purposes of fire extinguishers, there are____classes of fire ✔✔Five
when using a fire extinguisher, always approach the fire ✔✔With an exit behind you
A dry chemical extinguisher rated 60-B is capable of extinguishing a____flammable liquid pan fire ✔✔60 ft.²
A stored-pressure water extinguisher should be chosen to attack on_____fires ✔✔Class A
A blue circle with a letter designation in the center would indicate an extinguisher is rated for use on_____fires ✔✔Class C
Class B fires involve fuels such as ✔✔Flammable liquids
extinguishers suitable for class C fires can be identified by a____containing the Letter C ✔✔Blue circle
water is the most common extinguishing agent because ✔✔It's cooling properties
