Chapter 9 Fire Extinguisher Quiz
How much water does a 2-A extinguisher carry? A.2.5 gallons B.5 gallons C.4 gallons D.9.5 gallons
A.2.5 gallons
When calculating how much water is needed for a small brush fire, you determine you will need approximately 5 gallons of water. Which fire extinguisher rating would provide this amount of water? A.2.5-A B.4-A C.5-AB D.2-ABC
A.2.5-A
A dry chemical extinguisher rated 60-B is capable of extinguishing a ____________ flammable liquid pan fire. A.60 ft2 B.40 ft2 C.120 ft2 D.150 ft2
A.60 ft2
What does the letter "A" in the PASS acronym stand for? A.Aim B.Activate C.Action D.Assess
A.Aim
Which area would be considered an area of extra hazard? A.All of these are correct. B.Car repair facility C.Woodworking shop D.Commercial kitchen
A.All of these are correct.
Which example of fire extinguishment works by separating oxygen from the burning fuel? A.Applying a foam blanket to the surface of a burning liquid B.Applying water to a cooking oil fire C.Applying water to an engine compartment fire D.Applying a purple K dry chemical to energized electrical equipment
A.Applying a foam blanket to the surface of a burning liquid
A stack of shrink-wrapped brick pavers is stored on a pallet in a warehouse. What type of hazard does this represent? A.Class I commodity, moderate hazard B.Class II commodity, light hazard C.Class I commodity, light hazard D.Class II commodity, ordinary hazard
A.Class I commodity, moderate hazard
Which location should be appropriate for a Class K portable extinguisher? A.Commercial kitchen B.Mechanic's shop/garage C.Automobile showroom D.Residential kitchen
A.Commercial kitchen
Which shape and color combination correlates with Class A extinguisher ratings? A.Green triangle B.Red diamond C.Red square D.Green circle
A.Green triangle
Which part of the fire tetrahedron is most affected by the use of a water extinguisher? A.Heat B.Flame C.Fuel D.Oxygen
A.Heat
Which statement about user requirements of fire extinguishers is MOST accurate? A.Most fire extinguishers are easy to operate and can be used by an individual with only basic training. B.Fire extinguishers should never be used or operated by adolescents or children. C.Most fire extinguishers are extremely difficult to operate and can only be used by an individual with advanced training. D.Fire extinguishers should not be used by most of the general population.
A.Most fire extinguishers are easy to operate and can be used by an individual with only basic training.
Which NFPA standard lists the requirements for placing and mounting portable fire extinguishers? A.NFPA 10 B.NFPA 1 C.NFPA 13R D.NFPA 1900
A.NFPA 10
The acronym for the four-step process for proper use of fire extinguishers is: A.PASS. B.PACE. C.RACE. D.DUMP.
A.PASS.
What is the term for water-soluble flammable liquids such as alcohols, acetone, and others? A.Polar solvents B.Flammable surfactants C.Volatile fuels D.Three-dimensional liquids
A.Polar solvents
What is an advantage of a water mist fire extinguisher? A.Safe to use on Class C fires B.Lighter than stored-pressure water extinguishers C.Can be used on Class K fires D.Contents will not freeze at temperatures below 32þF
A.Safe to use on Class C fires
What factors should be considered when selecting a fire extinguisher? A.The fuel B.The weight of the extinguisher C.The response time of the fire department D.The location of the extinguisher
A.The fuel
What is the most likely outcome if a water-type fire extinguisher is used on a hot cooking oil fire? A.The water will cause the heated oil to splatter, possibly spreading the fire and increasing its intensity. B.The water will turn to steam and absorb the heat produced from the fire. C.The water will cover the oil's surface and separate it from oxygen. D.The oil will cool and flames will decrease.
A.The water will cause the heated oil to splatter, possibly spreading the fire and increasing its intensity.
What is fire load? A.Total quantity of combustible materials present in a building B.Total square footage of space that will be consumed by a fire C.Total volume of fire that can be extinguished with a 40-A extinguisher D.Total volume of smoke that a room and contents fire will produce
A.Total quantity of combustible materials present in a building
Extinguishing agents safe for use on fires in or near energized electrical equipment include: A.dry powder, carbon dioxide, and AFFF. B.AFFF, carbon dioxide, and dry chemical. C.dry chemical, pressurized foam, and carbon dioxide. D.carbon dioxide and dry chemical.
A.dry powder, carbon dioxide, and AFFF.
Extinguishers suitable for Class A fires can be identified by a ____________ containing the letter "A." If colored, it should be ____________. A.triangle, green B.square, red C.star, yellow D.circle, blue
A.triangle, green
Fire extinguisher classification symbols are displayed by all of the following except: A.weight of container. B.color. C.shape. D.letter.
A.weight of container.
Which size of flammable liquids fire should an expert user of a 30-B extinguisher be able to control? A.30 square feet B.75 square feet C.60 square feet D.120 square feet
B.75 square feet
You have selected a dry-chemical extinguisher that weighs 20 pounds for use on a small kitchen grease fire. How long will it take to discharge all the agent in this extinguisher with continual operation? A.5 minutes B.8 to 20 seconds C.30 seconds to 1 minute D.3 minutes
B.8 to 20 seconds
You are mounting a fire extinguisher for a local business. The extinguisher weights 25 pounds. At what height should you mount this extinguisher? A.A height where the top of the extinguisher is not more than 3 feet above the floor, with the bottom of the extinguisher being at least 5 inches from the floor B.A height where the top of the extinguisher is not more than 5 feet above the floor, with the bottom of the extinguisher being at least 4 inches from the floor C.A height where the top of the extinguisher is not more than 6 feet above the floor, with the bottom of the extinguisher being at least 4 inches from the floor D.A height where the top of the extinguisher is not more than 4 feet above the floor, with the bottom of the extinguisher being at least 10 inches from the floor
B.A height where the top of the extinguisher is not more than 5 feet above the floor, with the bottom of the extinguisher being at least 4 inches from the floor
Select the correct description of a fire extinguisher rated for 3-A: 5-B:C. A.Can be used on Class A, B, and D fires. Water equivalent of 3 gallons, expert Class B control capabilities of 12.5 square feet, and appropriate for energized electrical equipment. B.Can be used on Class A, B, and C fires. Water equivalent of 3.75 gallons, nonexpert Class B control capabilities of 5 square feet, and appropriate for energized electrical equipment. C.Can be used on Class A, B, and C fires. Water equivalent of 6 gallons, nonexpert Class B control capabilities of 25 square feet, and appropriate for cooking oils. D.Can be used on Class A, B, and C fires. Water equivalent of 3.5 gallons, expert Class B control capabilities of 25 square feet, and appropriate for flammable metals.
B.Can be used on Class A, B, and C fires. Water equivalent of 3.75 gallons, nonexpert Class B control capabilities of 5 square feet, and appropriate for energized electrical equipment.
Which type of fire extinguisher utilizes a "clean agent" and is suitable for use in food preparation areas? A.Water B.Carbon dioxide C.Sodium bicarbonate D.Dry chemical
B.Carbon dioxide
A stored-pressure water extinguisher should be chosen to attack a ____________ fire. A.Class D B.Class A C.Class B D.Class C
B.Class A
Which fire extinguisher rating would be appropriate for use on a vehicle fire? A.Class C B.Class ABC C.Class D D.Class AC
B.Class ABC
A gasoline spill at a gas station has ignited and is burning. Which class of fire does this represent? A.Class D B.Class B C.Class C D.Class A
B.Class B
Energized electrical equipment and the surrounding area have to be protected with extinguishers that have a ____________ rating. A.Class A B.Class C C.Class B D.Class D
B.Class C
Fires involving combustible metals such as magnesium, titanium, zirconium, sodium, and potassium, are ____________ fires. A.Class B B.Class D C.Class A D.Class C
B.Class D
What advantage does a dry-chemical extinguisher offer over water-type fire extinguishers? A.Dry-chemical extinguishers create a fine dust cloud that diminishes oxygen from the fire. B.Dry-chemical extinguishers can be used effectively on Class B fires. C.Dry-chemical extinguishers do not require the use of SCBA during operation. D.Dry-chemical extinguishers are effective on Class D and K fires.
B.Dry-chemical extinguishers can be used effectively on Class B fires.
Wet chemicals, dry powers, and water with additives are all examples of what? A.Hazardous materials B.Extinguishing agents C.Fire extinguishers D.Fire classes
B.Extinguishing agents
What four elements are required of all fires for continued combustion? A.Fuel, spark, wind, low humidity B.Fuel, heat, oxygen, sustained chemical reaction C.Low humidity, low moisture content, sustained wind, high temperature D.Oxygen, flame, light, smoke
B.Fuel, heat, oxygen, sustained chemical reaction
On extinguishers featuring a color-coded pressure indicator, which color indicates the extinguisher contains the proper pressure for use? A.Red B.Green C.Yellow D.Blue
B.Green
Which area would be considered as a light hazard area? A.Retail stores B.Hotel guest rooms C.Parking garages D.Auto showrooms
B.Hotel guest rooms
Which classification of hazard area might contain limited amounts of Class A materials that are arranged so that fire in not likely to spread? A.Medium hazard B.Low hazard C.High hazard D.Multi-hazard
B.Low hazard
Which NFPA standard outlines the placement of fire extinguishers? A.NFPA 13R B.NFPA 1 C.NFPA 1010 D.NFPA 14
B.NFPA 1
What does the letter "P" in the PASS acronym stand for? A.Position B.Pull C.Pin D.Place
B.Pull
What does the number preceding the rating of a Class B extinguisher indicate? A.The approximate amount of water carried by the extinguisher B.The approximate area in square feet of burning fuel that it will control C.The approximate amount of British thermal units that it will absorb D.The approximate pounds of ordinary combustibles that it will extinguish
B.The approximate area in square feet of burning fuel that it will control
Which agency is responsible for developing the standards, classification, and rating system for portable fire extinguishers in the United States? A.NFPA B.UL Standards & Engagement C.US DOT D.United States Fire Administration
B.UL Standards & Engagement
Which type of extinguisher is typically white in color? A.Carbon dioxide extinguisher B.Water mist extinguisher C.Stored-pressure water extinguisher D.Dry-chemical extinguisher
B.Water mist extinguisher
All portable extinguishers are classified according to their: A.conductivity. B.intended use. C.size. D.freeze potential.
B.intended use.
Cold temperatures would have the greatest effect on ____________ extinguishing agents stored in an extinguisher. A.carbon dioxide B.water-based C.dry powder D.dry chemical
B.water-based
A dry chemical fire extinguisher rated as 10-B should be capable of extinguishing ____________ times as much fire as a unit rated as 1-B A.5 B.20 C.10 D.100
C.10
A 3-A extinguisher contains the equivalent of how much water? A.6 gallons b.1.25 gallons C.3.75 gallons D.12 liters
C.3.75 gallons
Which size of flammable liquids fire should a nonexpert user be able to extinguish with an extinguisher rating of 30-B? A.75 square feet B.60 square feet C.30 square feet D.120 square feet
C.30 square feet
Your fire department owns and operates a paramedic ambulance unit. Which type, if any, of fire extinguisher is required to be carried by the ambulance? A.One, 2-A water extinguisher B.One Class B, carbon dioxide extinguisher C.At least one multipurpose fire extinguisher D.None, this is not a suppression vehicle and is not required to carry a fire extinguisher.
C.At least one multipurpose fire extinguisher
Which type of fire extinguisher is used primarily for brush and grass fires? A.Pump tank water extinguisher B.Water mist fire extinguisher C.Backpack fire extinguisher D.Stored-pressure water extinguisher
C.Backpack fire extinguisher
Which statement is TRUE of carbon dioxide fire extinguishers? A.CO2 fire extinguishers leave residue that can corrode metals and damage electronic equipment. B.CO2 fire extinguishers are generally lighter than other extinguishers with similar ratings. C.CO2 extinguishers do not perform well at temperatures below 0þF. D.CO2 fire extinguishers have extended discharge ranges (25-50 ft), allowing the operator to discharge the agent from a safe distance
C.CO2 extinguishers do not perform well at temperatures below 0þF.
Which extinguishing agent acts as a self-expelling agent? A.Dry chemical B.Purple K C.Carbon dioxide D.Water
C.Carbon dioxide
Which fire extinguisher must be weighed in order to determine if it is fully charged? A.Water extinguisher B.Halon extinguisher C.Carbon dioxide extinguisher D.Dry-chemical extinguisher
C.Carbon dioxide extinguisher
A blue circle with a letter designation in the center would indicate an extinguisher is rated for use on ____________ fires. A.Class D B.Class B C.Class C D.Class A
C.Class C
Several overheated computer servers have ignited a fire, resulting in multiple servers burning. Which class of fire does this scenario represent? A.Class A B.Class B C.Class C D.Class D
C.Class C
Which class of fire extinguisher would include a yellow star on the label? A.Class C B.Class K C.Class D D.Class A
C.Class D
Where might you find a portable extinguisher with a black hexagon on the label? A.Textile factory B.Commercial garage C.Commercial kitchen D.Tesla plant
C.Commercial kitchen
Which extinguishing agent is composed of fine particles that extinguish through interruption of chemical chain reactions, separating fuel from heat and removing oxygen from fuel materials? A.Purple K B.Carbon dioxide C.Dry-chemical D.Carbon monoxide
C.Dry-chemical
Which fire apparatus is equipped with the correct configuration of portable extinguishers, according to NFPA 1900? A.Engine 10, equipped with one dry-chemical ABC extinguisher B.Engine 5, equipped with two purple K extinguishers C.Engine 7, equipped with one dry-chemical extinguisher and one 2-A water extinguisher D.Engine 2, equipped with two, 2-A water extinguishers
C.Engine 7, equipped with one dry-chemical extinguisher and one 2-A water extinguisher
Fires can be categorized as into how many different classes? A.Three B.Two C.Five D.Four
C.Five
Which portable extinguisher pictograph would indicate the extinguisher is appropriate for use on a Class B fire? A.Flame and electrical plug and socket B.Flame and metal gear C.Flame and gasoline can D.Flame and trash can
C.Flame and gasoline can
Which fire scenario best represents the type of fire that portable extinguishers are best suited for? A.Fully-involved barn fire, with large bales of hay inside B.Large SUV with fire coming from the passenger compartment, trunk, and hood C.Food on the stove fire in a residential kitchen D.75-gallon gasoline spill that is on fire
C.Food on the stove fire in a residential kitchen
Which component of a fire extinguisher is designed specifically for expelling the extinguishing agent? A.Trigger B.Cylinder C.Horn D.Handle
C.Horn
Which component of a fire extinguisher is designed to prevent accidental discharge? A.Pressure indicator B.Nozzle and horn C.Locking mechanism D.Cylinder assembly
C.Locking mechanism
In addition to the class of fire that is likely to occur, which key factors must be considered when determining which type of fire extinguisher should be placed in a given area? A.Occupancy type B.Type of construction C.Potential size of an incipient stage fire D.Expert user status
C.Potential size of an incipient stage fire
Which fire extinguisher sits upright on the ground during use and is steadied by the foot of the operator? A.Wheeled fire extinguisher B.Cylinder-operated extinguisher C.Pump tank fire extinguisher D.Sodium bicarbonate extinguisher
C.Pump tank fire extinguisher
Which extinguishing agent contains potassium bicarbonate, sodium bicarbonate, mica, Fuller's earth and amorphous silica? A.Agent Red B.Monoammonium phosphate C.Purple K D.Sodium nitrate
C.Purple K
What shape is found on the label of a Class B-rated fire extinguisher? A.Yellow star B.Green square C.Red square D.Purple triangle
C.Red square
Which compound is most commonly used in small household fire extinguishers? A.Monoammonium phosphate B.Potassium bicarbonate C.Sodium bicarbonate D.Potassium chloride
C.Sodium bicarbonate
A water extinguisher is contraindicated for which fire scenario? A.Engine compartment fire B.Grass and small brush fire C.Wastebasket fire D.Restaurant cooking oil fire
C.Wastebasket fire
Extinguishers suitable for Class C fires can be identified by a ____________ containing the letter C. A.red square B.green triangle C.blue circle D.yellow star
C.blue circle
All portable extinguishers are classified according to their: A.freeze potential. B.size. C.intended use. D.conductivity.
C.intended use.
Class C fires can be extinguished using: A.water. B.compressed air aspirating foam. C.multipurpose dry chemicals. D.water-based agents or foam.
C.multipurpose dry chemicals.
A carbon dioxide (CO2) extinguisher's means of discharge is: A.cartridge activation. B.chemical reaction. C.stored liquefied compressed gas. D.manual hand-pump.
C.stored liquefied compressed gas.
A pump tank extinguisher rated as 4-A can be expected to extinguish approximately ___________ as much fire as one rated 2-A. A.four times B.three times C.twice D.eight times
C.twice
How much extinguishing agent do wheeled extinguishers typically contain? A.100-200 gallons B.600 pounds C.200 gallons D.150-350 pounds
D.150-350 pounds
How close does a firefighter need to be to the seat of a Class A fire when using the 2-A stored pressure water extinguisher? A.At least 10 ft B.At least 20 ft C.Within 75 ft D.Between 35-40 ft
D.Between 35-40 ft
CO2 and dry chemical extinguishers will extinguish both Class B and C fires. What advantage does CO2 have over a dry chemical extinguisher? A.CO2 is not a hazard in an enclosed area. B.CO2 is effective at a greater distance. C.CO2 will prevent reignition longer than dry chemical extinguisher. D.CO2 does not leave a residue or corrode electrical contacts
D.CO2 does not leave a residue or corrode electrical contacts
Which symbol is found on Class C extinguishers? A.Star B.Diamond C.Hexagon D.Circle
D.Circle
A green triangle containing a letter would indicate an extinguisher to be used on ____________ fires. A.Class B B.Class D C.Class C D.Class A
D.Class A
Which extinguisher requires an air-aspirating nozzle to optimize the effectiveness of the extinguishing agent? A.Class A foam fire extinguisher B.Purple K fire extinguisher C.Compressed-water fire extinguisher D.Class B foam fire extinguisher
D.Class B foam fire extinguisher
Dry powder extinguishers are rated for use on ____________ fires. A.Class B B.Class C C.Class A D.Class D
D.Class D
A local diner's fryers and oil containers have ignited, activating the fire alarm system. Which class of fire does this scenario represent? A.Class A B.Class B C.Class C D.Class K
D.Class K
Regular dry chemicals (sodium bicarbonate-based and potassium-based) work on ____________ fires. A.only Class D B.Class A C.only Class B D.Classes B and C
D.Classes B and C
What injury could occur by placing your hand on the horn of a CO2 extinguisher while discharging it? A.The horn could be distorted leading to poor application. B.Electrical shock could occur. C.Heat from friction can cause burns. D.Cold can freeze the skin.
D.Cold can freeze the skin.
While performing incident preplans in a local manufacturing plant, you notice several yellow extinguishers mounted throughout the building. What type of extinguishing agent does this indicate, and what class of fire would it be suitable for? A.Dry chemical; Class D B.Carbon dioxide; Class ABC and D C.Sodium bicarbonate; Class K D.Dry powder; Class D
D.Dry powder; Class D
Which portable fire extinguisher pictograph would most likely be found on an extinguisher rated for Class K fires? A.Flames and burning wood B.Flames and a gasoline can C.Flames and metal gears D.Flames in a frying pan
D.Flames in a frying pan
When quickly selecting a fire extinguisher for use on a sofa fire, which shape and color combination would you look for on the rating? A.Black diamond B.Green square C.Yellow circle D.Green triangle
D.Green triangle
Which dry-chemical extinguishing agent is rated as suitable for use on Class A fires? A.Hydrophobic acid B.Sodium bicarbonate C.None, dry-chemical agents are not recommended for Class A Fires. D.Monoammonium phosphate
D.Monoammonium phosphate
Which dry-chemical extinguishing agent is most corrosive? A.Phosphate ammonium B.Monoammonium phosphate C.Ammonium chloride D.Potassium chloride
D.Potassium chloride
When mounting fire extinguishers, it is important to mount them so that they are what? A.Out of the reach of children and adolescents B.Adjacent to the primary exit C.Adjacent to the primary entrance D.Readily visible and easily accessible
D.Readily visible and easily accessible
Which type of extinguisher holds both the extinguishing agent and the expeller gas under pressure in the body of the extinguisher? A.Cylinder fire extinguisher B.Cartridge fire extinguisher C.Positive-pressure fire extinguisher D.Stored-pressure fire extinguisher
D.Stored-pressure fire extinguisher
How does the additive "wet water" enhance the extinguishing properties of water? A.With the addition of detergents that absorb flammable oils from fuels B.By increasing the amount of steam produced by water as it is applied to fire C.By increasing the ability of water to bead and roll off the surface of solid fuels D.With the addition of surfactants, that reduce the surface tension of water
D.With the addition of surfactants, that reduce the surface tension of water
Class K fires involve: A.combustible metals. B.wood and paper. C.energized equipment. D.combustible cooking oils.
D.combustible cooking oils.
Class B fires involve fuels such as: A.ordinary combustibles. B.energized electrical equipment. C.combustible metals. D.flammable liquids.
D.flammable liquids.
Clean agents are: A.materials used to clean grease and oil off the floor. B.agents that have been banned for causing ozone depletion. C.materials specially formulated to clean fire extinguishers. D.gases that do not conduct electricity or leave a residue and are nonvolatile
D.gases that do not conduct electricity or leave a residue and are nonvolatile
Class K fires involve: A.hazardous waste. B.computer network equipment. C.atomic material. D.high temperature cooking oils, such as vegetable or animal oils and fats.
D.high temperature cooking oils, such as vegetable or animal oils and fats.
Extinguishers suitable for Class A fires can be identified by a ____________ containing the letter "A." If colored, it should be __________. A.circle, blue B.star, yellow C.square, red D.triangle, green
D.triangle, green
Extinguishers suitable for Class D fires can be identified by a ____________ containing the letter D. A.red square B.blue circle C.green triangle D.yellow star
D.yellow star
Which type of extinguisher contains an alkali metal salt that prevent freezing of the extinguishing agent? A.Flammable metal extinguisher B.Loaded-stream extinguisher C.Cylinder-operated extinguisher D.Stored-pressure water extinguisher
Loaded-stream extinguisher
Which activity is required as part of a routine fire extinguisher inspection? A.Replace the hose and nozzle. b.Ensure the extinguisher is properly identified by type and rating. C.Perform a hydrostatic test of the cylinder. D.Remove and replace all tamper seals.
b.Ensure the extinguisher is properly identified by type and rating.
