Fire Protection Final
17. A low-expansion foam has a foam-to-water expansion ratio of ___________. A. 2:1 - 20:1 B. 2:1 - 50:1 C. 20:1 - 200:1 D. 200:1- 1000:1
A. 2:1 - 20:1
15. What is considered to be the main component of the aerosol extinguishing system? A. Aerosol generator B. Piping and valves C. Nozzles D. Activation station
A. Aerosol generator
7. Which of the following components is used to store wet or dry chemical agents, and is made of metals that will not react with the agent? A. Agent storage containers B. Gas cartridges C. Piping and fittings D. Nozzles
A. Agent storage containers
Ch. 10 1. Which of the following is a colorless, odorless, noncombustible, nonconductive gas that exists in the air at a very small yet detectable level? A. Carbon dioxide B. Halon C. Nitrogen D. Oxygen
A. Carbon dioxide
16. Which fire extinguisher type has a pressurized cartridge that, when activated, releases the pressurized gas into the extinguishing agent tank, forcing it out of a nozzle or hose? A. Cartridge pressure extinguisher B. Stored pressure extinguisher C. Pump extinguisher D. Self-expelling extinguisher
A. Cartridge pressure extinguisher
2. Which of the following classes of fire involves ordinary combustibles such as cloth, grain, paper, rubber, and wood? A. Class A B. Class B C. Class D D. Class K
A. Class A
11. Some of the classes of fire extinguishers have numbers in addition to their letter classification. Which of the following classes has a number before its letter? A. Class B B. Class C C. Class D D. Class K
A. Class B
15. What may result from component failure, environmental conditions, damage, carelessness, or insufficient inspection, testing, or maintenance? A. Impairments B. Serviceable systems C. Faster reaction times D. Cost reduction
A. Impairments
10. Which delivery system is the best for delivery of Halon 1211, since the agent expands as a mixture of liquid droplets and vapor upon discharge? A. Local application system B. Total flooding system C. Hand hose line system D. Standpipe/mobile supply system
A. Local application system
12. Which system protects a specific area, piece of equipment, process, or operation depending on the hazard? A. Local application system B. Total flooding system C. Remote application system D. Hand hose line system
A. Local application system
5. Of the four approved delivery systems for carbon dioxide, which one protects a specific piece of equipment, process, or operation by discharging carbon dioxide directly onto the hazard? A. Local application system B. Total flooding system C. Hand hose line system D. Standpipe/mobile supply system
A. Local application system
1. What is the National Fire Protection Association standard for portable fire extinguishers? A. NFPA 10 B. NFPA 12 C. NFPA 15 D. NFPA 101
A. NFPA 10
7. Which NFPA standard covers the design, installation, inspection, testing, and maintenance of fixed, semi-fixed, and portable foam extinguishing systems? A. NFPA 11 B. NFPA 11A C. NFPA 11B D. NFPA 12
A. NFPA 11
5. Which of the following is NOT a pressurized gas used as a transport medium for dry chemical extinguishing agents? A. Oxygen B. Nitrogen C. Carbon dioxide D. Compressed air
A. Oxygen
10. What must the manufacturer include on the nozzle to identify the particular nozzle type? A. Permanent markings B. Security packaging C. Zip-tied specifications D. Instruction booklet
A. Permanent markings
1. Which of the following terms is used to describe a mechanical system that pressurizes areas of a building with fans to limit smoke movement when there is a fire? A. Smoke control B. Smoke management C. Smoke current D. Smoke damper
A. Smoke control
5. Which of the following extinguishing agents can absorb more heat per pound than just about any other extinguishing material? A. Water B. Dry chemical C. Wet chemical D. Dry powder
A. Water
9. Which extinguishing agent is a mixture of agents that, when applied, reacts with the fat in the cooking medium and develops a soapy foam blanket? A. Wet chemical B. Foam C. Dry powder D. Halon
A. Wet chemical
1. Which of these extinguishing systems protects commercial kitchen appliances and the associated ductwork, exhaust hoods, filters, and plenum chambers? A. Wet chemical extinguishing system B. Foam-water extinguishing system C. Dry chemical extinguishing system D. Gaseous agent extinguishing system
A. Wet chemical extinguishing system
17. What is the second step of the operation of a fire extinguisher, as labeled on the side of the fire extinguisher in a pictograph format? A. Pull the pin. B. Aim the nozzle. C. Squeeze the trigger. D. Sweep the nozzle across the base of the fire.
B. Aim the nozzle.
2. Carbon dioxide is very effective on which two classes of fire? A. Classes D and B B. Classes B and C C. Classes K and C D. Classes C and D
B. Classes B and C
17. Before conducting a discharge test for halon and clean agent extinguishing systems, what must be accomplished in order to determine the amount of leakage from the protected area? A. Visual inspection B. Enclosure integrity test C. Hydrostatic tests D. Operation test
B. Enclosure integrity test
2. Which type of hazard does a fixed automatic foam system protect? A. Electrical transformers B. Flammable and combustible liquids C. Elevated Class A storage D. Computer server rooms
B. Flammable and combustible liquids
6. Which of the following extinguishing agents forms a vapor barrier between the Class B fuel and the atmosphere, thus cooling and smothering the fire? A. Wet chemical B. Foam C. Carbon dioxide D. Clean agent
B. Foam
6. Which of the following foam generating apparatus mount on the side of fuel storage tanks and apply foam on the top of the fuel inside the tank? A. Oscillating monitor nozzles B. Foam maker chambers C. Foam generators D. Subsurface injection
B. Foam maker chambers
8. Which of the following systems uses the same basic components as an automatic fire sprinkler system and may be a preprimed system? A. Fixed automatic foam system B. Foam-water sprinkler system C. Water spray fixed system D. Water mist system
B. Foam-water sprinkler system
8. Since many manufacturers do not combine the wet chemical agent and expelling gas, which of the following is used to store the expelling gas until it is needed when the system activates? A. Agent storage containers B. Gas cartridges C. Piping and fittings D. Nozzles
B. Gas cartridges
11. Which of the following is considered a clean agent to replace halons, thereby easing the environmental concerns and potential toxicity of the halon? A. Carbon-free agent B. Halocarbon C. Carbon dioxide D. Oxyclean agent
B. Halocarbon
8. Which gaseous agent is a mixture of carbon and one or more elements from the halogen series (fluorine, chlorine, bromine, or iodine)? A. Carbon dioxide B. Halon C. Nitrogen D. Oxygen
B. Halon
13. What designation is given to inert gases that have a mixture of helium, neon, argon, nitrogen, and small amounts of carbon dioxide? A. IH B. IG C. IC D. IE
B. IG
13. In which of the following areas might a water mist system be installed? A. In tanks containing liquefied gas at cryogenic temperatures B. In underground mass transit systems C. In flammable liquid storage tanks D. In reactive materials storage facilities
B. In underground mass transit systems
16. Which of the following is considered to be a typical impairment of a specialized water-based fire protection system? A. Open control valves B. Painted sprinkler heads C. Heat-wrapped piping D. New sprinkler heads
B. Painted sprinkler heads
8. Which smoke control method creates holding areas for persons who are unable to exit a building without assistance in an emergency? A. Pressure differential B. Refuge area pressurization C. Floating zone pressurization D. Elevator shaft pressurization
B. Refuge area pressurization
2. Which of the following is a term used to describe passive and active systems used alone or in combination to alter smoke movement? A. Smoke control B. Smoke management C. Smoke currents D. Smoke dampers
B. Smoke management
5. Which of the following systems prevents or substantially reduces smoke intrusion into egress stairways so occupants can use the stairs to exit the building? A. Refuge area differential B. Stairway pressurization C. Floating zone pressurization D. Elevator shaft pressurization
B. Stairway pressurization
15. Which of the following has both the pressurized expelling gas and the extinguishing agent mixed in the same tank, and uses gas to push the extinguishing agent out through a nozzle or hose when operated? A. Cartridge pressure extinguishers B. Stored pressure extinguishers C. Pump extinguishers D. Self-expelling extinguishers
B. Stored pressure extinguishers
18. Who is responsible for the inspection, testing, and maintenance of fire extinguishers to ensure that they will be in working order when needed? A. The fire department B. The property owner C. The extinguisher contractor D. The manufacturer
B. The property owner
13. Which system protects enclosed hazards and areas within a structure, such as in paint spray booths? A. Local application system B. Total flooding system C. Remote application system D. Hand hose line system
B. Total flooding system
6. Which carbon dioxide delivery system protects enclosed hazards, rooms, and areas within a structure by filling the entire enclosure? A. Local application system B. Total flooding system C. Hand hose line system D. Standpipe/mobile supply system
B. Total flooding system
5. Which fixed foam system component is designed so that when water moves across an open orifice within the device, it creates a lower pressure that draws foam concentrate into the water stream? A. Foam pump B. Venturi proportioner C. Concentrate tank D. Foam generator
B. Venturi proportioner
2. Wet chemical extinguishing agents use water-based solutions mixed with any of the following agents or additives, EXCEPT: A. potassium citrate. B. aqueous film-forming foam. C. potassium carbonate. D. potassium acetate.
B. aqueous film-forming foam.
11. Which of the following describes a mechanical device that is used as an automatic activation device for wet or dry chemical extinguishing systems? A. trip wire B. fusible link C. pull station D. push button
B. fusible link
17. Ammonium phosphate is _________ in order to differentiate it from other dry chemicals. A. purple B. yellow C. white D. blue
B. yellow
13. If an extinguisher is rated as 120-B, it means that a non-expert extinguisher operator should have enough product to extinguish a: A. 120-square-yard pan fire. B. 120-square-meter pan fire. C. 120-square-foot pan fire. D. 120-square-inch pan fire.
C. 120-square-foot pan fire.
12. Which of the following Class A fire extinguisher ratings is based on outdoor tests? A. 10-A B. 5-A C. 30-A D. 20-A
C. 30-A
16. After how many years should dry chemical agent in stored-pressure containers be replaced to ensure that the system is fresh and ready for operation? A. 3 years B. 5 years C. 6 years D. 12 years
C. 6 years
14. Which of the following extinguishing systems offers an alternative to clean agent and specialized water-based fire protection systems? A. Carbon dioxide extinguishing systems B. Clean agent extinguishing systems C. Aerosol extinguishing systems D. Halogenated extinguishing systems
C. Aerosol extinguishing systems
7. Which extinguishing agent is effective on Class B and C fires, but has limited use on Class A fires? A. Water B. Foam C. Carbon dioxide D. Wet chemical
C. Carbon dioxide
3. Which classification of fire extinguishers involves energized electrical equipment? A. Class A B. Class B C. Class C D. Class K
C. Class C
10. Which of the following extinguishing agents is effective on Class D fires and eliminates oxygen by forming a crust on the materials and depleting the available oxygen? A. Foam B. Dry chemical C. Dry powder D. Wet chemical
C. Dry powder
6. In addition to stairway pressurization, high-rises may utilize which of the following, also known as the sandwich effect? A. Pressure differential B. Refuge area differential C. Floating zone pressurization D. Elevator shaft pressurization
C. Floating zone pressurization
4. What is an effective agent to meet all of the protection objectives for flammable and combustible liquid hazards? A. Water B. Halon C. Foam D. Dry chemical
C. Foam
9. Which NFPA standard covers the design and installation of foam-water sprinkler and foam-water spray systems? A. NFPA 11 B. NFPA 12 C. NFPA 16 D. NFPA 20
C. NFPA 16
9. Which of the following is the correct mixture for Halon 1211? A. One part fluorine, two parts carbon, one part chlorine, one part bromine B. One part bromine, two parts fluorine, one part chlorine, one part carbon C. One part carbon, two parts fluorine, one part chlorine, one part bromine D. One part chlorine, two parts fluorine, one part carbon, one part bromine
C. One part carbon, two parts fluorine, one part chlorine, one part bromine
3. Of the general design approaches, which one utilizes walls, bulkheads, doors, partitions, draft curtains, high ceilings, and sealed floor openings to create barriers? A. Buoyancy force B. Stack effect C. Passive design approach D. Active design approach
C. Passive design approach
14. Which type of fire extinguisher requires manual operation, creating the necessary pressure in the tank to expel the extinguishing agent? A. Cartridge pressure extinguisher B. Stored pressure extinguisher C. Pump extinguisher D. Self-expelling extinguisher
C. Pump extinguisher
3. What occurs when the extinguishing agent reacts with the cooking oil to form a soapy foam blanket that provides separation between oxygen and fuel? A. Condensation B. Evaporation C. Saponification D. Pontification
C. Saponification
11. What system must operate and apply water to the hazard within 100 milliseconds of flame detection? A. Low-speed water spray fixed system B. Medium-speed water spray fixed system C. Ultra-high-speed water spray fixed system D. High-speed water spray fixed system
C. Ultra-high-speed water spray fixed system
9. Through proper engineering of the system, the agent and expelling gas must properly mix and maintain flow balance to ensure even distribution of the agent through the system. This is called: A. condensation. B. liquefaction. C. fluidization. D. saponification.
C. fluidization.
14. Inspection, testing, and maintenance requirements are similar or in some cases the same for specialized water-based fire protection systems as they are for: A. dry chemical extinguishing systems. B. gaseous agent extinguishing systems. C. standard fire sprinkler systems. D. portable fire extinguishers.
C. standard fire sprinkler systems.
4. At what pressure should carbon dioxide be stored to be considered high-pressure storage? A. 250 psi B. 300 psi C. 120 psi D. 850 psi
D. 850 psi
4. Which design approach uses mechanical systems to exhaust, pressurize, and (in particular situations) oppose the smoke with forced air? A. Buoyancy force B. Stack effect C. Passive design approach D. Active design approach
D. Active design approach
6. Which of the following is NOT one of the three general categories of dry chemical extinguishing agents? A. Sodium bicarbonate-based B. Potassium-based C. Multipurpose D. Baking soda-based
D. Baking soda-based
4. Which of the following classes of fire involves cooking media that use combustible vegetable or animal oils and fats? A. Class A B. Class B C. Class D D. Class K
D. Class K
3. Which of these is NOT one of the protection objectives of fixed automatic foam? A. Extinguishing B. Preventing C. Controlling D. Directing
D. Directing
8. Which of the following extinguishing agents is made up of small solid particles propelled by a pressurized gas that covers the burning material and decreases the oxygen concentration? A. Dry powder B. Wet chemical C. Carbon dioxide D. Dry chemical
D. Dry chemical
7. Which pressurization system has fans that pump air into the hoistway, creating a pressure barrier that is slightly higher than the areas outside? A. Pressure differential B. Refuge area differential C. Floating zone pressurization D. Elevator hoistway pressurization
D. Elevator hoistway pressurization
14. Which of the following can stand alone, supplement fire extinguishers, or supplement fixed dry chemical systems? A. Local application system B. Total flooding system C. Remote application system D. Hand hose line system
D. Hand hose line system
3. Which of the following activation methods is NOT used to discharge the carbon dioxide extinguishing system? A. Automatically by a type of detector B. Manually by a person initiating the electronic activation C. Manually by a person through mechanical means D. Manually by a fire alarm communication center
D. Manually by a fire alarm communication center
15. How often should the owner or a representative visually inspect the extinguishing system for conditions that could cause failure of, or inhibit, operation? A. Yearly B. Semiannually C. Quarterly D. Monthly
D. Monthly
10. Which component of a water spray fixed system is very important and available in automatic or open configurations? A. Steel pipe B. Gas detector C. Blow-off cap D. Nozzle
D. Nozzle
4. Which of the following is most likely protected by fixed dry chemical extinguishing systems? A. Injection molding processes B. Bulk fuel storage areas C. Woodworking appliances D. Self-serve fuel-pump stations
D. Self-serve fuel-pump stations
9. Which smoke control method is best suited for large volume spaces, such as atriums, indoor stadiums, airport terminals, and indoor malls? A. Containment by airflow B. Pressure differential C. Stairway differential D. Smoke removal
D. Smoke removal
7. Which carbon dioxide delivery system is primarily installed at industrial facilities for use by trained personnel and the fire department? A. Local application system B. Total flooding system C. Hand hose line system D. Standpipe/mobile supply system
D. Standpipe/mobile supply system
16. Which of the following is NOT true of the condensed generator and the dispersed generator for aerosol generation? A. The condensed generator has no piping, whereas the dispersed generator has piping. B. The condensed generator hangs from the walls or ceiling. C. The dispersed generator already contains the chemical agent. D. They are identical and are used in conjunction with each other.
D. They are identical and are used in conjunction with each other.
12. Which system is a fixed fire protection system that discharges a very fine spray with water droplets that must be 1000 microns or less in size? A. Fixed automatic foam system B. Foam-water sprinkler system C. Water spray fixed system D. Water mist system
D. Water mist system
1. Which of the following does NOT indicate a need to install a specialized water-based fire protection system? A. When a standard automatic fire sprinkler is not appropriate B. When there is a need for a supplemental suppression agent C. Where the method of application requires specialized equipment and components D. When the appropriate system is outdated and needs replacement
D. When the appropriate system is outdated and needs replacement
18. In order to avoid corrosion, the foam concentrate tank must be made of materials that are ______ with the foam concentrate? A. absorbable B. flexible C. neutral D. compatible
D. compatible