NFPA 10 STUDY GUIDE 100% VERIFIED ANSWERS 2024/2025 CORRECT, Exams of Organization and Business Administration

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NFPA 10 STUDY GUIDE 100%

VERIFIED ANSWERS

2024/2025 CORRECT

Class A Fires are what? Ordinary Materials such as wood, cloth, paper, rubber, and many plastics Class B Fire are what? Flammable liquids, combustible liquids, combustible liquids, petroleum greases, tars, oils, oil based paints, solvents, laquers, alcohols and flammable gases Class C Fires are what? Electrical Fires Class D Fires are what? Combustible Metals such as Magnesium, Zirconium, Titanium Class K Fires are what? Fires in cooking appliances that involve combustible cooking media (Vegetable or animal oils and fats) Fire Extinguishers containing only plain water shall be protected at temperatures as low as what?

• 40 ℉, by the use of Antifreeze What Shall not be used in stainless steel extinguishers? Calcium Chloride Fire Extinguishers shall be located so that the maximum distance of travel is what? less that 75ft

Tag or label, as a minimum shall identify what? Month and year maintenance was performed Person performing work Name of Agency performing work Internal Examination of dry chem with brazed brass shells, halogenated agents, and dry powder stored_pressure with steel shells shall occur when? 6 Years Which extinguishers are required to have a rating number preceding the classification letter? Class A & B extinguishers Which extinguishers do not require a number before the classification letter? Classes C, D and K Wheeled fire extinguishers can be considered for hazard protection for what reasons? High hazard areas are present and limited personnel: requiring: High flow rate Increased stream range Increased capacity a High-Pressure Cylinder is held to what pressure? Higher than 500 psi A Low-Pressure cylinder is held to what pressure? 500 psi or less at 70℉ a Light Hazard is what? Quantity and combustibility of class A & B are low and Quantity of Class b is less that 1 gallon Ordinary Hazard is what?

Quantity and combustibility of Class A & B are moderate. Total quantity of Class B is 1 gallon - 5 gallon What is an Extra Hazard Quantity and combustibility of Class A & B are High or were high amounts of Class B are present. Total quantity of Class B is over 5 gallons Class B fires require that the discharge rate be what? 10 lb or greater and a discharge rate of 1 lb/sec 3 - Dimensional fires require what discharge rate? 10lb or greater and a discharge rate of 1 lb/sec Aqueous Film Forming Foam and Film Forming Flouride Protein Foam shall NOT be used for what? The protection of water-soluble flammable liquids, such a alcohol, acetone, esters, ketones, unless specifically referenced on the fire extinguisher nameplate Choosing an extinguisher for Obstacle Fires shall be based on the following Extinguisher contains a vapor suppressing foam, multiple extinguishers for class B agents, and larger capacity (10lb) with a discharge rate of 1 lb/sec What is required when a hazard is protected by an automatic fire suppression system? Placard shall be placed conspicuously near the extinguisher that states the fire protection system before a portable extinguisher What type of extinguisher shall be installed in areas containing oxidizers, such as pool chemicals? Dry chemical Internal examination interval of stored pressure dry chem with stainless shell is how long? 5 Years Internal examination interval of AFFF and FFFP is how long? 3 Years with extinguishing agent replaced

Internal examination interval of stored-pressure water i show long? 5 years Inspection procedures for Class D is what? Located in designated place, no obstructions, lid is sealed, fullness by weight, and no obvious damage Fire extinguishers and Class D extinguishing agents shall be inspected how often? Less than 31 days and at least once per calendar month Are persons training to become certified, authorized to perform maintenance and recharging etinguishers? only under immediate supervision of a certified person All cooking appliances with a fire box of 5 ft³ or less shall have what? one 2A rated water-type extinguisher or a 1.6 gal class K rated wet chemical extinguisher Maximum travel distance for Class K hazard? 30 ft or less Maximum travel distance for Class D hazard? 75 ft or less Maximum travel distance to 3D, pressure, obstacle fire with a wheeled extinguisher is=? 100 ft Maximum travel distance for obstacle, 3D, or pressure fire hazards? 30 ft True or False? Two AFFF or FFFP extinguishers of atleast 1.6 gal is permitted to fulfill ordinary hazard requirements True

Can 2 water-type extinguishers, rated 1A be used to fulfill the requirements of one 2A extinguisher? Yes Cabinets housing extinguishers shall not be locked, except when? When they are subject to malicious intent and cabinets have emergency access In NO case shall the clearance between the bottom of the extinguisher and the floor be less than how high? 4 inches Fire extinguishers with a weight over 40 lbs shall be installed how? SO that the fire extinguisher is less than 3½ ft off the floor Fire extinguisher under 40 lbs shall be installed how? SO that the top of the fire extinguisher is not more than 5 ft above the floor When signs are used to identify the location of an extinguisher, they shall comply with what? Be in close proximity to the extinguisher and be visible from the normal path of travel Does the use of sprinklers, standpipe, hose or other fixed fire protection change where portable fire extinguishers are required? No, install of fire extinguishers is seperate Internal exam interval of store-pressure loaded system, pump tank water with calcium chloride, dry chem cartridge and cylinder operated with mild steel shells and wetting agents is how long? 1 year Inspection procedures located in designated place, no obstruction, pressure gauge is operable, fullness determined by weight. condition of tires, wheels, carriage, hose and nozzle for wheeled

If Class D extinguishers have conditions that require they be inspected more frequently, how often? Daily or weekly