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NFPA 10: Fire Extinguisher Standards and Guidelines, Exams of Safety and Fire Engineering

A comprehensive overview of nfpa 10 standards and guidelines for fire extinguishers. It covers various aspects, including types of extinguishers, classification, maintenance, and placement. The document also includes information on obsolete extinguishers and the use of halon agents. It is a valuable resource for individuals involved in fire safety and emergency preparedness.

Typology: Exams

2024/2025

Available from 03/03/2025

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NFPA 10 Latest Update Rated A+
(SI) ✔✔International System of Units
1 in=. mm ✔✔25.4
Approved ✔✔Acceptable to the authority having jurisdiction.
(AHJ) ✔✔Authority Having Jurisdiction
O rganization, office or individual responsible for enforcing requirements of a code or standard,
or for approving equipment, materials, an installation or procedure.
Shall ✔✔Indicates a mandatory requirement.
Should ✔✔Indicates a recommendation or that which is advised but not required.
Dry Chemical ✔✔A powder composed of very small particles, usually sodium bicarbonate-
,potassium bicarbonate-, or ammonium phosphate based with added particulate material
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NFPA 10 Latest Update Rated A+

(SI) ✔✔International System of Units

1 in=. mm ✔✔25.

Approved ✔✔Acceptable to the authority having jurisdiction.

(AHJ) ✔✔Authority Having Jurisdiction

O rganization, office or individual responsible for enforcing requirements of a code or standard, or for approving equipment, materials, an installation or procedure.

Shall ✔✔Indicates a mandatory requirement.

Should ✔✔Indicates a recommendation or that which is advised but not required.

Dry Chemical ✔✔A powder composed of very small particles, usually sodium bicarbonate- ,potassium bicarbonate-, or ammonium phosphate based with added particulate material

supplemented by special treatment to provide resistance to packing, resistance to moisture absorption (caking), and the proper flow capabilities

Wet Chemical ✔✔Normally an aqueous solution of organic or inorganic salts or a combination thereof that forms an extinguishing agent

Clean agent ✔✔Electrically nonconducting, volatile, or gaseous fire extinguishant that does not leave a residue upon evaporation

Dry Chemical Closed Recovery System ✔✔A system that does not introduce foreign material into the agent being recovered and has a means of visually inspecting the recovered agent for contaminants

Halogenated Closed Recovery System ✔✔A system that provides for the transfer of halogenated agents between fire extinguishers, supply containers, and recharge/recovery containers so that none of the halogenated agent escapes to the atmosphere.

(ODP) ✔✔Ozone Depletion Potential

Halocarbons ✔✔Include HCFC HFC PFC and FIC types of agents and other types of halocarbons that are found acceptable under the Environmental Protection Agency Significant New Alternatives policy program

FIC ✔✔Fluoroiodocarbon

PFC ✔✔perfluorocarbon

Halons ✔✔Include Halon 1211 and 1301 and mixtures of the two

Halon 1301 ✔✔Bromotrifluoromethane

Halon 1211 ✔✔Bromochlorodifluoromethane

Hydrostatic testing ✔✔Pressure testing of the extinguisher to verify its strength against unwanted rupture.

Loaded Stream Charge ✔✔A water based extinguishing medium that uses an alkali metal salt as a freezing point depressant.

Extinguisher service pressure ✔✔The normal operating pressure as indicated on the nameplate or cylinder of a fire extinguisher

Factory test pressure ✔✔The pressure shown on the nameplate at which a shell was tested at time of manufacture.

wetting agent ✔✔A concentrate which, when added to water reduces the surface tension and increases its ability to penetrate and spread

Water Mist Fire Extinguisher ✔✔A fire extinguisher containing "distilled or de-ionized" water and employing a nozzle that discharges the agent in a fine spray

Standard for carbon-dioxide fire extinguishers ✔✔ANSI/UI

154

CAN/ULC-S

  1. Performance and fire test standards that the extinguisher meets or exceeds

Fire extinguishers manufactured prior to ____________ shall not be required to comply with 4.1.2. ✔✔January 1 1986

MSDS ✔✔Material Safety Data Sheet

A fire extinguisher shall have a label, tag, or stencil attached to it and provide what information ✔✔1. Contents product name as it appears on manufactures safety data sheet

  1. Listing of hazardous material ID in accordance with HMIS
  2. List of any hazardous materials that are in excess of 1.0% of the contents
  3. List of each chemical in excess of 5.0% of contents
  4. Information as to what is hazardous about the agent in accordance with the MSDS
  5. Manufacturers or service agencies name mailing address and phone number

HMIS ✔✔Hazardous Material Identification System

Obsolete fire extinguishers (7) ✔✔1. Soda Acid

  1. Chemical Foam (excludes Film Forming)
  2. Vaporizing liquid (Carbon tetrachloride)
  3. Cartridge operated water
  4. Cartridge operated loaded system
  5. Copper or Brass Shell (exclude pump tanks) joined by soft solder or rivets
  6. Carbon Dioxide extinguishers with metal horns
  7. Pressurized water prior to 1971
  8. Any stored pressure prior to 1955

Dry chemical stored pressure extinguishers manufactured prior to _______ shall be removed from service at 6 year maintnence or hydrotest ✔✔October 1984

Class A fires ✔✔Fires involving ordinary combustible materials such as wood,

cloth, rubber and plastics.

Class B fires ✔✔Fires involving flammable and combustible liquids, oils, greases, tars, oil-based paints, lacquers, and flammable gases.

Use of halon agent fire extinguishers shall be limited to what? ✔✔Applications where a clean agent is necessary to extinguish fire efficiently without damaging the equipment or area being protected or where the use of alternative agents can cause a hazard to the personnel in the area

Placement of portable fire extinguishers containing halogenated agents shall conform to ✔✔Minimum confined space volume requirement warnings listed on extinguisher nameplate

Wheeled fire extinguishers should be considered when ✔✔High hazard areas are present

Limited personnel are present

When limited personnel is available, a fire extinguisher shall have what features? ✔✔1. High agent flow rate

  1. Increased agent steam range
  2. Increased agent capacity

Light hazard ✔✔Total quantity of Class A and Class B is less than 1 gallon in an area

Ordinary Hazard ✔✔Total quantity of Class A and Class B is from 1 Gallon to 5 Gallons

Extra Hazard ✔✔Total quantity of Class A and Class B is more than 5 Gallon

Selection by occupancy ✔✔Extinguishers should be provided for both the building structure and the occupancy hazards contained within them regardless of any fixed fire suppression systems

Required building protection shall be provided by fire extinguishers for Class ______ Fires ✔✔A

Buildings having an occupancy hazard subject to Class B or Class C Fires should have a standard complement of Class ______ fires for building protection ________ additional Class B or Class C fire extinguishers ✔✔A

Plus

Selection of fire extinguishers for Pressurized Liquids and Pressurized Gas fires should be made on the recommendations __________ ✔✔By the manufacturer of the equipment

Water-Soluble Flammable Liquid Fires are also known as ✔✔Polar Solvents

Only _______ type extinguishers shall be installed in areas containing oxidizers (Pool Chemicals) ✔✔Water

___________ __________ Fire extinguishers shall not be installed in areas containing oxidizers ✔✔Multipurpose Dry Chemical

The installation of extinguishers should be __________ of whether the building is equipped with ______ ________, _______ and _______, or other _____ ________ _________ ✔✔Independent

Automatic sprinklers

Standpipe and hose

fixed protection equipment

Extinguisher readiness ✔✔Extinguishers should be maintained in a fully charged and operable condition and shall be kept in their designated places at all times when not being used

Fire extinguishers shall be located on ______ ______ __ _______ including ______ from areas ✔✔normal paths of travel

Exits

Fire extinguisher shall not be ______ from view ✔✔obstructed

In large rooms and locations where visual obstructions cannot be completely avoided....... ✔✔Means shall be provided to indicate the extinguisher location

Signs that indicate fire extinguisher locations should

1

2 ✔✔Be located in close proximity of the extinguisher

Be visible from the normal path of travel

Extinguishers with a gross weight not exceeding 40 lbs should be installed so that the top of the extinguisher is not....... ✔✔More than 5 ft above the floor

extinguishers with gross weight greater then 40 lbs should be installed so that the top of the extinguisher is....... ✔✔No more than 3 1/2 feet above the floor

The clearance between the bottom of the floor and extinguisher should never be less than..... ✔✔4 inches

________ helps protect plain water extinguishers from freezing temperatures ✔✔Antifreeze

_______ ________ ________ should not be used in stainless steel extinguishers ✔✔Calcium Chloride Solutions

Minimum number of Extinguishers for Class A Hazards on each floor is determined by ✔✔Dividing total floor area by maximum area to be protected per extinguisher

Extinguishers should be located so that the maximum travel distances shall not exceed _________ ✔✔75ft

Smaller fire extinguishers that are rated on Class B and Class C fires but do not have a minimum 1-A rating shall ________ be used to meet the requirements for 6.2.1. ✔✔not

When the area of the floor of a building is less than table 6.2.1 specifies, at least ___ extinguisher of the _______ size shall be provided ✔✔ 1

Minimum

Extinguishers shall not be installed for the sole protection for flammable liquid hazards of appreciable depth where the surface area exceeds _________ ✔✔10ft^

If personnel who are trained in extinguishing fires in the protected hazards are located on the premises and can respond quickly, the Maximum surface area must not exceed ________ ✔✔20ft^

for flammable liquid hazards of appreciable depth, a Class B extinguisher should be provided that has at least _____ numerical units of Class B extinguishing potential per 1ft^2 of flammable liquid surface of the _______ hazard area ✔✔ 2

Largest

Travel distances for portable fire extinguishers should not exceed ✔✔50 ft

A hand portable fire extinguisher positioned for obstacle, gravity/3d, ir pressure fire hazards, should not have an actual travel distance of more than _______ft ✔✔30ft

Wheeled fire extinguishers weighing 125lb or more are installed or positioned for obstacle, gravity/3d, the actual travel distance should not exceed _________ft ✔✔100ft