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53 Cards in this Set
- Front
- Back
- 3rd side (hint)
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How are portable fire extinguishers classified? |
According to the type of fire they are designed to extinguish |
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How are the different classes of portable fire extinguishers distinguished from one another? |
Letter and/or symbol labels |
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What is an example of a Class A combustible material? |
Paper |
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fire involving which of these: rubber, alcohol, cooking oil, or computer equipment, would be considered a Class A fire. |
rubber |
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Which extinguishing agent is used to extinguish a Class A fire? |
Water |
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Class B fires involve: |
flammable or combustible liquids and gases |
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Which of the following is a Class B Fuel: rubber, sodium alcohol, lithium? |
Alcohol |
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Which of these: TIre fire, wildland fire, Fuel storage tank fire, commercial kitchen fire; would be a Class B fire? |
fuel storage tank fire |
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IF a small diesel fuel spill catches on fire, the most effectie extinguishing agent would be: |
carbon dioxide (CO_2) |
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Which of the following is an example of a Class C fire: Kitchen fire, Electrical Fire, Fire involving yard waste, Fire involving magnesium? |
Electrical Fire |
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What would be the safest action for an incipient fire in a circuit breaker box if the electricity cannot be turned off? |
Use a Class C Extinguisher |
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Which of the following is an example of a CLass D fuel: rubber, alcohol, titanium, petroleum? |
titanium |
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Which type of extinguisher is designed for a fire involving magnesium? |
Dry powder |
Remember dry powder DOES NOT equal dry Chemical |
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Instead of a numerical rating, Class ______ extinguishers include application instructions on the faceplate of the extinguisher. |
Class D |
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A grease fire involving a deep fryer would be classified as: |
Class K |
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Class K fires are extinguished using portable fires extinguishers or ___________ systems. |
wet chemical |
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Class K extinguishers convert fatty acids in oils into a soapy film, which is known as the process of: |
saponification |
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Portable extinguishers that use the smothering method to extinguish fire, work by: |
excluding oxygen from the buring process |
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When the cartridge seal is broken on a fire extinguisher with a pressure cartridge, the: |
expellant will enter the container and force the agent out of the nozzle |
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The appropriate extinguisher to use for a small ground cover fire would be a: |
pump type water extinguisher |
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What is designed to fight Class A fires but is also safe for use on energized electrical equipment? |
Water-mist stored pressure extinguisher |
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Which type of extinguisher contains a special agent formulated to saponify the oils in a Class K Fire? |
Wet Chemical stored pressure extinguisher |
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An aqueous film forming foam (AFFF) extinguisher would be appropriate to use on a: |
small fuel spill |
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What distinguishes an aqueous film forming foam (AFFF) extinguisher from a stored-pressure water extinguisher? |
Air-aspirating foam nozzle that aerates the foam solution |
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Clean agent extinguishers: |
are nonconductive and can extinguish energized electrical equipment fires |
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A carbon dioxide (CO_2) extinguisher would be an appropriate choice to extinguish a __________ fire. |
Class B |
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Carbon dioxide (CO_2) extinguishers work by: |
displacing oxygen and smothering the fire |
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When using dry chemical extinguishers, firefighters should be aware that: |
application of the agent may result in a cloud of airborne particulates |
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What are the two basic designs for handheld dry chemical extinguishers? |
Cartridge-operated and stored pressure |
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When using a wheeled dry chemical extinguisher unit, the operator should: |
stretch out the hose completely before discharging the agent |
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What type of fire requires a dry powder extingisher? |
Class D |
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What affect will water have when applied to a combustible metal fire? |
water will intensify the combustion and spatter the material in every direction |
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What is the best plan of action if the goal is to protect highly sensitive computer equipment? |
Select a clean agent or carbon dioxide extinguisher |
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Before using a fire extinguisher, check the weight of the extinguisher; this should tell you: |
if the extinguisher contains agent |
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What is the final set in the PASS application method? |
Sweep the nozzle back and forth |
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What is a consideration for using extinguishers for suppressing incipient fires of all classes? |
If more than one extinguisher is used simultaneously, work in unison with the other firefighters |
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What is NOT a consideration for using extinguishers for suppressing incipient fires of all classes? |
Apply the agent from a point where it reaches and also disrupts the fuel surface |
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Air-Aspirating Foam Nozzle |
foam nozzle designaed to provide the aeration required to make the highest quality foam possible; most effective appliance for the generation of low-expansion foam |
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Aqueous Film Forming Foam (AFFF) |
Synthetic foam concentrate that, when combined with water, can form a complete vapor barrier over fuel spills, and fires and is a highly effective extinguishing and blanketing agent on hydrocarbon fuels |
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Class A Fire |
fires involving ordinary combustibles such as wood, paper, cloth, and similar materials |
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Class B Fire |
Fires of flammable and combustible liquids and gases |
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Class C Fire |
Fires involving energized electrical equipment |
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Class D Fire |
Fires of combustible metals such as magnesium, sodium, and titanium |
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Class K Fire |
Fires in cooking appliances that involve combustible cooking media, such as vegetable or animal oils and fats; commonly occurring in commercial cooking facilities such as restaurants and institutional kitchens |
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Dry Chemical |
Any one of a number of powdery extinguishing agents used to extinguish fires |
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Dry Powder |
extinguishing agent suitable or use on combustible metal fires |
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Extinguishing Agent |
any substance used for the purpose of controlling or extinguishing a fire |
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Fire Exinguisher |
portable fire fighting device designed to combat incipient fires |
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Halogenated Extinguishing Agents |
Chemical compounds (halogenated hydrocarbons) that contain carbon plus one or more elements from the halogen series. Halon 1301 and Halon 1211 are most commonly used as extinguishing agents for Class B and Class C fires |
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Saponification |
phenomenon that occurs when mixtures of alkaline based chemicals and certain cooking oils come into contact, resulting in the formation of a soapy film |
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Smothering |
act of excluding oxygen from a fuel |
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Water Mist Extinguisher |
Fire extinguisher capable of discharging atmoized water through a special applicator; pressurized water mist extinguishers use distilled water, whereas back pump water mist extinguishers use ordinary water |
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Wet Chemical System |
Extinguishing system that uses a wet chemical solution as the primary extinguishing agent; usually installed in range oods and associated ducting where grease may accumulate |
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