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65 Cards in this Set
- Front
- Back
With respect to Fuels ordinary combustible materials include |
Wood and paper |
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All portable extinguishers are classified according to their |
Intended use |
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A dry chemical extinguisher rated 60-B is capable of extinguishing a |
60 ft2 flammable liquid pan fire |
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What Advantage does CO2 have over a dry chemical extinguisher |
CO2 does not leave a residue or corrode electrical contacts |
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Extinguishing agent safe for use on fires in or near energized electrical equipment include |
Carbon dioxide and dry chemical |
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How much water is required for a fire extinguisher to receive a 2-A rating |
2 1/2 gallons |
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When approaching a fire, stored- pressure water extinguishers are designed to be discharged with the nozzle aimed at the |
Base of the fire |
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A blue circle with a letter designation in the center would indicate and extinguisher is rated for use on |
Class C Fires |
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Class B fires involve fuels such as |
Flammable liquids |
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A green triangle containing a letter would indicate and extinguisher to be used on a |
Class A fire |
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Energized electrical equipment in the surrounding area have to be protected with extinguishers that has a |
Class C rating |
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Extinguishers suitable for class A fire's can be identified by a what containing the letter A. If colored it should be |
Triangle green |
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A stored pressure water extinguisher should be chosen to attack a |
Class A fire |
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The preferred method of applying dry chemical agents to flammable liquid spill fires is to |
Direct the stream at the base of the fire using a sweeping motion |
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Carbon dioxide extinguishers are generally rated for |
Class B and C Fires |
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An electric motor fire is best extinguished by using CO2 because it |
Leaves no residue |
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Extinguishers suitable for class B fires can be identified by a what containing the letter B |
Red Square |
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Extinguishers suitable for Class C Fires can be identified by a what containing the letter C |
Blue circle |
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A multipurpose dry chemical extinguisher is rated for class |
A B and C Fires |
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The proper type of extinguisher for a fire involving magnesium Titanium or sodium is |
Dry powder |
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A Class D fire involves |
Combustible metals |
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Fire involving flammable liquids and gases where applied foam and dry chemical agents will be needed or |
Class B fires |
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Extinguishers suitable for class D fires can be identified by a what containing the letter D |
Yellow star |
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Fires involving combustible Metals such as magnesium titanium zirconium sodium and potassium are |
Class D fires |
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A carbon dioxide CO2 extinguishers means of discharge is |
Stored liquefied Compressed Gas |
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A pump tank extinguisher rated as 4-A can be expected to extinguish approximately |
Twice as much fire as one rated 2-A |
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A dry chemical fire extinguisher rated as 10-B should be capable of extinguishing |
10 times as much fire as a unit rated as 1B |
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Dry powder extinguishers are rated for use on |
Class D fires |
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What extinguisher may be required to extinguish a restaurant kitchen fire involving fryers |
Type K |
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Class C Fires involve |
Energized electrical equipment |
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One method fire extinguishers extinguish is by |
Cooling |
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Halon fire extinguishers are primarily designed for use on |
Class B and C Fires |
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Which type of portable fire extinguisher is least likely to expose the operator to electrical shock |
Dry chemical |
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AFFF Aqueous film forming foam extinguishers are suitable for use on |
Class A and B fires |
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Prior to squeezing the handle of a dry chemical fire extinguisher the nozzle should be aimed |
At the base of the fire |
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Injury that could occur by placing your hand on the Horn of a CO2 extinguisher before discharge |
Shock |
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It is dangerous to apply a stream of water to energized electrical equipment because |
Water can conduct electricity back to the extinguisher |
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How many basic steps is there to operate a fire extinguisher |
4 |
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Class C Fires can be extinguished using |
Multi-purpose dry chemicals |
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What factors should be considered When selecting a fire extinguisher |
The fuel |
|
Fire extinguishers should be inspected |
Once a year |
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The greatest concern associated with selecting too small of an extinguisher is that |
The operator has to get closer to the fire |
|
Gases that do not conduct electricity or leave a residue and or non-volatile are |
Clean agents |
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What extinguishing agent damages the ozone layer |
Halon |
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What is the relationship between dry powder and dry chemical extinguisher agents |
They are entirely different substances with entirely different applications |
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What does the acronym PASS mean |
Pull, Aim, Squeeze, sweep |
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Pump tank extinguishers are used to apply |
Water |
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Water type extinguishers exposed to weather below 40 degrees require what to be added |
Antifreeze |
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A loaded stream fire extinguisher |
Prevent freezing by adding a anti-freezing agent |
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AFFF portable fire extinguishers use what means for expelling their contents. Aqueous film forming foam |
Compressed air |
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A phenomenon that occurs when mixtures of alkaline base chemicals and certain cooking oils come into contact resulting in the formation of a soapy film is called |
Saponification |
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The term for water soluble flammable liquids such as alcohols acetone and others |
Polar solvents |
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The reason I fire extinguisher class icon would have a slash through it is because |
Using the extinguisher on that class of fire would create additional risk |
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Dry chemical extinguishers can be used on Class C Fires because dry chemicals |
Do not conduct electricity |
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Water Mist fire extinguishers are safe to use on energized electrical equipment because the water than use is |
Deionized |
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Fire extinguishers that are most effective or static pools of flammable liquids |
Aqueous film forming foam. AFFF extinguishers |
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The two basic designs for handheld dry chemical extinguishers |
Cartridge and stored pressure |
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Halogenated agents extinguish a fire by |
Interrupting chain reaction |
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When it comes to fire extinguishers and combustible metals |
No single agent will control or extinguish fires in all combustible metals |
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The organization charged with independently testing and certifying fire extinguishers is |
Underwriters Laboratories UL |
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What extinguishing agent interferes with the chemical chain reaction and terminates the combustion process |
Halon replacement agents |
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How should an extinguisher with a sixth nozzle be carried When approaching a fire |
In the favored hand |
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Best position to attack a fire with a portable extinguisher |
Upwind with an exit behind you |
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AFFF distinguishing agents are applicable for both |
Class A and B fires |
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When applying dry powder to a Class D fire the operator will need to |
Use large amounts of dry powder to completely cover the burning material |