NFPA 10 Standards for Portable Fire Extinguishers Part 1 &2 161 Questions with Verified Answers,100% CORRECT

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NFPA 10 Standards for Portable Fire Extinguishers Part 1 &2 161 Questions with Verified Answers What is the scope of the NFPA 10 (what does it deal with and pertain to)? (1.1) - CORRECT ANSWER Appl ... ies to the selection, installation, inspection, maintenance, recharging, and testing of portable fire extinguishers and class D extinguishing agents What is the units of Measurement used? (1.3) - CORRECT ANSWER metric Define: Authority Having Jurisdiction - CORRECT ANSWER (AHJ) An organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, an installation, or a procedure (such as fire chief, fire marshall) Define: Shall (3.2.5) - CORRECT ANSWER indicates mandatory requirement Define: Should (3.2.6) - CORRECT ANSWER Indicates a recommendation What does ANSI stand for?(3.3.1) - CORRECT ANSWER American National Standards Institute Define: Carbon Dioxide (3.3.3) - CORRECT ANSWER A colorless, odorless, electrically nonconductive inert gas that is a suitable medium for extinguishing Class B and Class C fires. How does Carbon Dioxide extinguish fire? (A 3.3.3) - CORRECT ANSWER Liquid carbon dioxide forms dry ice when released directly into the atmosphere. Carbon dioxide extinguishes fire by reducing the concentrations of oxygen, the vapor phase of the fuel, or both in the air to the point where combustion stops. What is a Dry Chemical?(3.3.4.1) - CORRECT ANSWER 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 What is a Wet Chemical? (3.3.4.2) - CORRECT ANSWER Normally an aqueous solution of organic or inorganic salts or a combination thereof that forms an extinguishing agent What is a Clean Agent?(3.3.5) - CORRECT ANSWER A fire suppression agent that does not leave any residue after use or interfere with the operation of electrical or electronic equipment. What is a Dry Chemical Closed Recovery System ?(3.3.6.1) - CORRECT ANSWER A system that is constructed in a manner 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 (3.3.6.2) - CORRECT ANSWER A system that provides for the transfer of halogenated agents between fire extinguishers, supply containers, and recharge and recovery containers so that none of the halogenated agent escapes to the atmosphere. The system's supply or recharge and recovery container is capable of maintaining the agent in a sealed environment until it is reused or returned to the agent manufacturer. Define: High Pressure cylinders (3.3.7.1) - CORRECT ANSWER Cylinders (and cartridges) containing nitrogen, compressed air, carbon dioxide, or other gases at a pressure higher than 500 psi at 70 degrees F Define: Low Pressure cylinders (3.3.7.2) - CORRECT ANSWER Cylinders (and cartridges) containing nitrogen, compressed air, carbon dioxide, or other gases at a pressure of 500 psi or lower at 70 degrees F What is Dry Powder? (3.3.9) - CORRECT ANSWER Solid materials in powder or granular form designed to extinguish Class D combustible metal fires by crusting, smothering, or heat-transferring means What is electronic monitoring of a fire system? (3.3.10) - CORRECT ANSWER either a local alarm device to indicate when an extinguisher is removed from its designated location or a method of electronic communication between in place extinguisher and electronic monitoring device What is an Extinguisher Bracket and why is it used? (3.3.11) - CORRECT ANSWER Extinguisher retention device designed to mount and secure a specific Extinguisher model onto various surfaces by incorporating releasable straps or bands to secure the fire extinguisher What is an Extinguisher cabinet and why is it used? (3.3.12) - CORRECT ANSWER An identifiable and readily accessible fire extinguisher housing device designed to store and protect fire equipment What is an Extinguisher Hanger and why is it used? (3.3.13) - CORRECT ANSWER Extinguisher mounting device designed for mounting a specific extinguisher model onto stationary vertical surfaces Extinguisher Inspection (3.3.14) - CORRECT ANSWER A quick check that a fire extinguisher is in it's designated place, that it has not been actuated or tampered with, and that there is no obvious physical damage or condition to prevent its operation. Intended to give reasonable assurance that the fire extinguisher is fully charged. Extinguisher maintenance (3.3.15) - CORRECT ANSWER A thorough examination of the fire extinguisher that is intended to give maximum assurance that a fire extinguisher will operate effectively and safely, to determine if physical damage or condition will prevent its operation, if any repair or replacement is necessary, and if hydrostatic testing or internal maintenance is required Film-Forming Foam (3.3.16) - CORRECT ANSWER A solution that will form an aqueous film on liquid fuels Aqueous - CORRECT ANSWER of or containing water, typically as a solvent or medium. like water; watery. "a great hall of aqueous marble" What does AFFF stand for? (3.3.16.1) - CORRECT ANSWER Aqueous Film Forming Foam What is Aqueous Film Forming Foam (AFFF)? (3.3.16.1) - CORRECT ANSWER A water-based extinguishing agent that forms a foam layer over the liquid and stops the production of flammable vapors. Based on fluorinated surfactants plus foam stabilizers used on Class B fires What does FFFP Stand for? (3.3.16.2) - CORRECT ANSWER Film Forming Fluoroprotein Foam What is Film Forming Fluoroprotein Foam (FFFP) (3.3.16.2) - CORRECT ANSWER Foam concentrate that, in addition to the air excluding foam blanket, can deposit a vaporization-preventing film on the surface of the liquid fuel. Combines the qualities of fluoroprotein foam with those of aqueous film forming foam for suppressing liquid fuel vapors. Flammable liquids of Appreciable Depths (3.3.17) - CORRECT ANSWER those with a depth greater than 1/4 inch Halocarbons (3.3.18.1) - CORRECT ANSWER Include HCFC, HFC, PFC, FIC types of agents and other halocarbons that are found acceptable under the new Environmental Protection Agency Significant New Alternative Program Halons (3.3.18.2) - CORRECT ANSWER any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer. HMIS - CORRECT ANSWER Hazardous Material Identification System Hydrostatic Testing (3.3.19) - CORRECT ANSWER Pressure testing of the extinguisher to verify its strength against unwanted rupture. Loaded Stream Charge (3.3.20) - CORRECT ANSWER A water-based extinguishing agent that uses an Alkali metal salt as a freezing point depressant Mild Steel Shell (3.3.21) - CORRECT ANSWER All steel shells other than stainless steel and steel shells used for high pressure cylinders Extinguisher Service Pressure (3.3.22.1) - CORRECT ANSWER The normal operating pressure as indicated on the nameplate or cylinder of a fire extinguisher Factory Test Pressure (3.3.22.2) - CORRECT ANSWER The pressure shown on the nameplate at which a shell was tested at time of manufacture. Pressurized flammable liquid fires (3.3.23) - CORRECT ANSWER Fires resulting from liquids that are forced, pumped, or sprayed. recharging (3.3.24) - CORRECT ANSWER The replacement of the extinguishing agent (also includes the expellant for certain types of fire extinguishers) servicing (3.3.25) - CORRECT ANSWER performing maintenance, recharging, or hydrostatic testing on a fire extinguisher TC (3.3.26) - CORRECT ANSWER Transport Canada: Has jursidiction over high and low pressure cylinders and cartridges in Canada DOT (3.3.8) - CORRECT ANSWER Department of Transportation Wetting Agent (3.3.28) - CORRECT ANSWER a concentrate that, when added to water, reduces the surface tension and makes it more effective in spreading over and penetrating surfaces. Cartridge / cylinder operated fire extinguisher (3.4.1) - CORRECT ANSWER A fire extinguisher in which the expellant gas is in a separate container from the agent storage container. non-rechargeable (nonrefillable) fire extinguishers (3.4.2) - CORRECT ANSWER A fire extinguisher that is intended to be used one time and not capable of or intended to be recharged and returned to service Portable fire extinguishers (3.4.3) - CORRECT ANSWER A portable device, carried or on wheels and operated by hand, containing an extinguishing agent that can be expelled under pressure for the purpose of extinguishing fire Rechargeable (Refillable) Fire Extinguisher (3.4.4) - CORRECT ANSWER A fire extinguisher capable of undergoing complete maintenance, including internal inspection of the pressure vessel, replacement of of all substandard parts and seals, and hydrostatic testing Self-expelling fire extinguisher (3.4.5) - CORRECT ANSWER A fire extinguisher in which the agents have sufficient vapor pressure at normal operating temperatures to expel themselves. Stored-pressure fire extinguisher (3.4.6) - CORRECT ANSWER A fire extinguisher in which both the extinguishing agent and the expellant gas are kept in a single container, and that includes a pressure indicator or gauge. Water Mist Fire Extinguisher (3.4.7) - CORRECT ANSWER A fire extinguisher containing distilled or de-ionized water and employing a nozzle that discharges the agent in a fine spray Water type fire extinguisher (3.4.8) - CORRECT ANSWER A fire extinguisher containing water-based agents, such as water, AFFF, FFFP, antifreeze, loaded stream, and wet chemical. Wheeled fire extinguisher (3.4.9) - CORRECT ANSWER A portable fire extinguisher equipped with a carriage and wheels that is intended to be transported to the fire by one person. What manufacturer contents should identifiable on the on a fire extinguisher label/tag? (4.2) - CORRECT ANSWER (1) The content's product name as it appears on the manufacturer's Material Safety Data Sheet (MSDS) (2) Listing of the hazardous material identification in accordance with Hazardous Materials Identification System (HMIS), Implementation Manual (3) List of any hazardous materials that are in excess of 1.0 percent of the contents (4) List of each chemical in excess of 5.0 percent of the contents (5) Information as to what is hazardous about the agent in accordance with the MSDS (6) Manufacturer's or service agency's name, mailing address, and phone number Obsolete Fire Extinguishers (4.4) - CORRECT ANSWER (1) Soda acid (2) Chemical foam (excluding film-forming agents) (3) Vaporizing liquid (e.g., carbon tetrachloride) (4) Cartridge-operated water (5) Cartridge-operated loaded stream (6) Copper or brass shell (excluding pump tanks) joined bysoft solder or rivets (7) Carbon dioxide extinguishers with metal horns (8) Solid charge-type AFFF extinguishers (paper cartridge) (9) Pressurized water fire extinguishers manufactured priorto 1971 (10) Any extinguisher that needs to be inverted to operate (11) Any stored pressure extinguisher manufactured prior to1955 (12) Any extinguishers with 4B, 6B, 8B, 12B, and 16B fire ratings (13) Stored-pressure water extinguishers with fiberglass shells (pre-1976) Dry chemical storage date that must be removed from service (4.4.1) - CORRECT ANSWER 1984 or prior What are the general requirements to determine the type of fire extinguisher for a given situation? (5.1) - CORRECT ANSWER (1) Type of fire most likely to occur (2) Size of fire most likely to occur (3) Hazards in the area where the fire is most likely to occur (4) Energized electrical equipment in the vicinity of the fire (5) Ambient temperature conditions *Additional info in Anex C.1.1 Are the selection of fire extinguishers dependent on the other fire protection methods the area is equipped with? (5.1.2) - CORRECT ANSWER No. They are installed as a first line of defense Class A fires involve what type of fuel source? (5.2.1) - CORRECT ANSWER ordinary combustible materials (i.e. paper, wood, cloths, rubber, and plastic) Class B fires involve what type of fuel source? (5.2.2) - CORRECT ANSWER Flammable liquids (i.e. petroleum, grease, oils, paints, alcohols) Class C fires involve what type of fuel source? (5.3.3) - CORRECT ANSWER energized electrical equipment Class D Fires involve what type of fuel source? (5.2.4) - CORRECT ANSWER Combustible metals (i.e. magnesium, sodium, lithium) Class K fires involve (5.2.5) - CORRECT ANSWER oils and greases normally found in commercial kitchens and food preparation facilities using deep fryers How is the classification of an extinguisher identified? (5.3.1) - CORRECT ANSWER The classification of a fire extinguisher shall consist of a letter that indicates the class of fire on which a fire extinguisher has been found to be effective. What type of extinguishers require a rating number before the letter and what does it indicate? (5.3.1.1) - CORRECT ANSWER Extinguishers classified for Class A or Class B hazards shall be required to have a rating number that indicated the relative extinguishing effectiveness. When can halon agent fire extinguishers be used? (5.3.2.6) - CORRECT ANSWER -where a clean agent is necessary to extinguish fire effectively without damaging equipment - area and the use of other types of agents would cause a hazard. Halon agent is highly effective for extinguishing fire and evaporates after use, leaving no residue. Halon agent is, however, included in the Montreal Protocol list of controlled substances developed under the United Nations Environment Program. Where agents other than halon can satisfactorily protect the hazard, they should be used instead of halon. When can wheeled fire extinguishers be considered for use? (5.3.2.7) - CORRECT ANSWER (1) High hazard areas are present. (2) Limited available personnel are present, thereby requiring an extinguisher that has the following features: (a) High agent flow rate (b) Increased agent stream range (c) Increased agent capacity These fire extinguishers are capable of delivering higher agent flow rates and greater agent stream range than normal portable-type fire extinguishers. Wheeled fire extinguishers are capable of furnishing increased fire-extinguishing effectiveness for high hazard areas and have added importance where a limited number of people are available. What is a light occupancy hazard? (5.4.1.1) - CORRECT ANSWER Class A combustibles and Class B flammables present are low and fires with relatively low rates of heat release are expected. Class B flammables expected to be below 1 gal in room or area What is an ordinary hazard? (5.4.1.2) - CORRECT ANSWER Class A combustible materials and Class B flammables are moderate and fires with moderate rates of heat release are expected. These occupancies consist of fire hazards that only occasionally contain Class A combustible materials beyond normal anticipated furnishings, and/or the total quantity of Class B flammables typically expected to be present is from 1 gal to 5 gal in any room or area. What is an extra occupancy hazard? (5.4.1.3) - CORRECT ANSWER Class A combustible material are high or where high amountsof Class B flammables are present and rapidly developing fires with high rates of heat release are expected. These occupancies consist of fire hazards involved with the storage, packaging, handling, or manufacture of Class A combustibles, and/or the total quantity of Class B flammables expected to be present is more than 5 gal (18.9 L) in any room or area. What types of extinguishers are needed for Pressurized flammable liquid and pressurized gas fires (Class B)? (5.5.1.1) - CORRECT ANSWER Large-capacity Dry Chemical extinguishers of 10 lb or greater and a discharge rate of 1 lb/sec or more shall be used to protect these hazards. What types of extinguishers are needed for Three Dimensional Fires (Class B materials in motion such as pouring, running or dripping flammable liquids)? (5.5.2) - CORRECT ANSWER Large-capacity dry chemical extinguishers of 10 lb or greater and a discharge rate of 1 lb/sec or more shall be used to protect these hazards. What types of extinguishers are needed for Obstacle Fires (Class B)? (5.5.3) - CORRECT ANSWER Selection of a fire extinguisher for this type of hazard shall be based on one of the following: (1) Extinguisher containing a vapor-suppressing foam agent (2)*Multiple extinguishers containing non-vapor-suppressing Class B agents intended for simultaneous application (3) Larger capacity extinguishers of 10 lb (4.54 kg) or greater and a minimum discharge rate of 1 lb/sec (0.45 kg/sec) What type of extinguishers cannot be used for water-soluable flammable liquid fires? (5.5.4) - CORRECT ANSWER Aqueous film-forming foam (AFFF) and film-forming fluoroprotein foam (FFFP) types of fire extinguishers shall not be used for the protection of water-soluble flammable liquids, such as alcohols, acetone, esters, ketones, and so forth, unless specifically referenced on the fire extinguisher nameplate What type of extinguishers can be used for areas where pool chemicals containing chlorine or bromine are stored (5.5.7.2) - CORRECT ANSWER Only water or foam extinguishers What affects the placement and distribution of portable fire extinguishers in an area? (A.6.1.1) - CORRECT ANSWER (1) Area and arrangement of the building occupancy conditions (2) Severity of the hazard (3) Anticipated classes of fire (4) Other protective systems or devices (5) Distances to be traveled to reach fire extinguishers What factors should be additionally considered in placement and distribution of portable fire extinguishers? (A6.1.1) - CORRECT ANSWER (1) Anticipated rate of fire spread (2) Intensity and rate of heat development (3) Smoke contributed by the burning materials Where should fire extinguishers be placed? (6.1.3) - CORRECT ANSWER In an accessible area/location along normal paths of travel where they are visible. If visual obstruction can not be avoided then a sign must be provided to indicate location. What ways can a portable extinguisher be installed? (6.1.3.4) - CORRECT ANSWER (1) Securely on a hanger intended for the extinguisher (2) In the bracket supplied by the extinguisher manufacturer (3) In a listed bracket approved for such purpose (4) In cabinets or wall recesses *hangers and brackets shall not be manufactured in the field How should portable extinguishers be installed in vehicles? (6.1.3.6) - CORRECT ANSWER Strap-type bracket What is the installation height for extinguishers weighing less than 40lbs? (6.1.3.8.1) - CORRECT ANSWER The top of the fire extinguisher should be no more than 5ft above the floor What is the installation height for extinguishers weighing more than 40lbs? (6.1.3.8.2) - CORRECT ANSWER The top of the extinguisher should be no more than 3.5 feet above the floor What is the minimum clearance between bottom of hand portable extinguisher and floor? (6.1.3.8.3) - CORRECT ANSWER 4 inches Where should label placement be when portable extinguisher is installed? (6.1.3.9.2) - CORRECT ANSWER Facing outward What is the maximum travel distance in which an extinguisher should be located for Class A hazards? (6.2.1.2.2) - CORRECT ANSWER 75ft What is the maximum floor area per extinguisher for Class A hazards? (Table 6.2.1.1) - CORRECT ANSWER 11,250ft Spill Fire Questions (6.3.1) - CORRECT ANSWER SIZE AND PLACEMENT FOR TYPE A HAZARDS LIGHT HAZARD OCCUPANCY (WOOD, CLOTH, PAPER, RUBBER, AND MANY PLASTICS) - CORRECT ANSWER LIGHT (LOW) MINIMUM RATED FE 2-A, FLOOR AREA PER UNIT OF A 3000SQFT, MAXIMUM FLOOR AREA FOR FE 11,250FT, MAXIMUM TRAVEL DISTANCE TO FE 75FT UP TO ONE HALF OF FE MAY BE REPLACED BY USING UNIFORMLY SPACED 1 1/2 HOSE STATIONS FOR USE BY OCCUPANTS OF BUILDING. CANNOT REPLACE MORE THAN EVERY OTHER FE. SIZE AND PLACEMENT FOR TYPE A HAZARDS ORDINARY HAZARD OCCUPANCY (WOOD, CLOTH, PAPER, RUBBER, AND MANY PLASTICS) - CORRECT ANSWER MINIMUM RATED FE 2-A MAX FLOOR AREA PER UNIT OF A 1500SQFT MAX FLOOR AREA FOR FE 11,250FT MAX TRAVEL DISTANCE TO FE 75FT UP TO ONE HALF OF FE MAY BE REPLACED BY USING UNIFORMLY SPACED 1 1/2 HOSE STATIONS FOR USE BY OCCUPANTS OF BUILDING. CANNOT REPLACE MORE THAN EVERY OTHER FE. SIZE AND PLACEMENT FOR TYPE A HAZARDS HIGH HAZARD OCCUPANCY (WOOD, CLOTH, PAPER, RUBBER, AND MANY PLASTICS) - CORRECT ANSWER MINIMUM RATED FE 4-A MAX FLOOR AREA PER UNIT OF A 1000SQFT MAX FLOOR AREA FOR FE 11,250FT MAX TRAVEL DISTANCE TO FE 75 FT UP TO ONE HALF OF FE MAY BE REPLACED BY USING UNIFORMLY SPACED 1 1/2 HOSE STATIONS FOR USE BY OCCUPANTS OF BUILDING. CANNOT REPLACE MORE THAN EVERY OTHER FE. Flammable liquids of appreciable depth questions (6.3.2) - CORRECT ANSWER Obstacle, gravity/three-dimensional, and pressure fire hazards (6.3.3) - CORRECT ANSWER When are Class C fire extinguishers required? (6.4) - CORRECT ANSWER where the fire either directly involves or surrounds electrical equipment What is the maximum travel distance for Class D extinguishers ? (6.5.2) - CORRECT ANSWER 75 ft In what work areas should Class D extinguishers be provided? (6.5.3) - CORRECT ANSWER Where combustible metal powders, flakes, shavings, chips, or similarly sized products are generated. What is the maximum travel distance for Class K hazards? (6.6.2) - CORRECT ANSWER 30ft Who is responsible for the upkeep of the inspection, maintenance, and recharging of extinguisher? (7.1.1) - CORRECT ANSWER The property owner of designated agent or occupant of the property Are persons performing inspections of extinguishers required to be certified? (7.1.2.3) - CORRECT ANSWER no. An inspection is a quick check done every 30 days and not to be confused with maintenance Are persons performing maintenance and recharging of extinguishers required to be certified? (7.1.2.1) - CORRECT ANSWER Yes unless they are training to become certified and under direct supervision and in the immediate presence of a certified person What to do when an extinguisher must be removed for maintenance of recharging... (7.1.3) - CORRECT ANSWER It must be replaced with a comparable extinguisher How often are inspections to be conducted? (7.2.1.2) - CORRECT ANSWER 12 times per year, at regular intervals not exceeding 31 days What should the inspection of the extinguisher check for? (7.2.2) - CORRECT ANSWER (1) Location in designated place (2) No obstruction to access or visibility (3) Pressure gauge reading or indicator in the operable range or position (4) Fullness determined by weighing or hefting (5) Condition of tires, wheels, carriage, hose, and nozzle for wheeled extinguishers (6) Indicator for nonrechargeable extinguishers using push to-test pressure indicators In cases where there has been a high frequency of fires in the past, sever hazards, where extinguishers are susceptible to damage, abnormal temperatures or corrosive atmospheres what additional inspection measures should be taken? (7.2.2.3) - CORRECT ANSWER (1) Verify that operating instructions on nameplates are legible and face outward (2) Check for broken or missing safety seals and tamper indicators (3) Examine for obvious physical damage, corrosion, leakage, or clogged nozzle What are the inspection procedures for Class D extinguishers? (7.2.2.5) - CORRECT ANSWER verification that: (1) Located in designated place (2) No obstruction to access or visibility (3) Lid is sealed (4) Fullness by hefting or weighing (5) No obvious physical damage to container What is required in the record keeping for manual inspection records? (7.2.4.1) - CORRECT ANSWER Documentation of month and year of inspection with the initials of person performing must be kept that includes which extinguishers were inspected. What is required for the record keeping for electronically monitored systems? (7.2.4.2) - CORRECT ANSWER Records should be kept for any extinguishers requiring corrective action. Record should be kept in the form of an electronic event log What basic elements of the extinguisher should be covered in the maintenance procedures? (7.3.1) - CORRECT ANSWER Thorough examination of: (1) Mechanical parts of all fire extinguishers (2) Extinguishing agent (3) Expelling means (4) Physical condition (as well as any other procedures detailed in the manufacturer's service manual) Familiarize procedures in Anex A.7.3.1 - CORRECT ANSWER How often are extinguishers subject to maintenance (7.3.2.1) - CORRECT ANSWER intervals of not more than 1 year, at time of hydrostatic test, or when specifically indicated by electronic notification What to look for in the physical condition at time of maintenance (7.3.2.1) - CORRECT ANSWER -visual exam to detect any physical damage, corrosion, or nozzle blockage -verify operating instructions are present, legible and facing forward, -determine if HMIS information is present -determine if 6 year interval exam or hydrostatic test is due What should be done with seal and tamper indicators at time of maintenance? (7.3.2.2) - CORRECT ANSWER They shall be removed by operating the pull pin, and, after maintenance is completed, new listed tamper seal shall be installed (non rechargeable types should not be removed) What should be done with boots, foot ring, and attachments at time of maintenance? (7.3.2.3) - CORRECT ANSWER They shall be removed to accommodate thorough examination Which extinguishers require internal examination every 1 year? (Table 7.3.3.1) - CORRECT ANSWER Stored-pressure loaded stream and antifreeze Pump tank water and pump tank, calcium chloride based Dry chemical, cartridge- and cylinder-operated, with mild steel shells Dry powder, cartridge- and cylinder-operated, with mild steel shells Wetting agent 1 Which extinguishers require internal examination every 3 years? (Table 7.3.3.1) - CORRECT ANSWER AFFF (aqueous film-forming foam) FFFP (film-forming fluoroprotein foam) Which extinguishers require internal examination every 5 years? (Table 7.3.3.1) - CORRECT ANSWER Stored-pressure dry chemical, with stainless steel shells Carbon dioxide Wet chemical Which extinguishers require internal examination every 6 years? (Table 7.3.3.1) - CORRECT ANSWER Dry chemical stored-pressure, with mild steel shells, brazed brass shells, and aluminum shells Halogenated agents Dry powder, stored-pressure, with mild steel shells How often should stored pressure type extinguishers containing a loaded stream charge be disassembled? (7.3.3.2) - CORRECT ANSWER On an annual basis What type of extinguishers do not require annual internal examination? (7.3.3.6) - CORRECT ANSWER nonrechargeable, carbon dioxide, or stored pressure (except loaded stream charge) What should the tag or label attached to the extinguisher at time of maintenance indicate? (7.3.4.1.1) - CORRECT ANSWER (1) Month and year maintenance was performed (2) Person performing the work (3) Name of the agency performing the work What types of extinguishers should have a verification of service collar? (7.3.4.2) - CORRECT ANSWER Each extinguisher that has undergone maintenance that includes internal examination, except Cartridge- or Cylinder-Operated Extinguishers and Pump Tank Extinguishers How much time is allowed for action to be taken when a fire extinguisher maintenance reveals a deficiency? (7.3.5) - CORRECT ANSWER Immediate action must be taken How often should internal examination occur for extinguishers requiring 12 year hydrotesting? (7.3.6) - CORRECT ANSWER Every 6 years the extinguisher should be emptied and subjected to internal and external examination. What type of extinguisher does not require 6 year internal or 12 year hydrotest? (7.3.6.3) - CORRECT ANSWER Non rechargeable. Must be removed from service at a max of 12 years. What are the requirements for 6 year internal exam label? (7.3.6.5-.2) - CORRECT ANSWER 2in x 3.5 in (minimum), weatherproof, affixed with heatless process, and self destructing when removal is attempted What information is on the 6 year internal exam label? (7.3.6.5.3) - CORRECT ANSWER (1) Month and year the 6-year internal examination was performed (2) Person performing the work (3) Name of the agency performing the work How often is a Carbon Dioxide Hose Assembly Conductivity Test conducted? (7.4) - CORRECT ANSWER Every Year What are the label requirements for a Conductivity test? (7.4.3) - CORRECT ANSWER 1/2 inch x 3 inch (minimum), weatherproof, affixed with heatless process What information is included on the label for a conductivity test (7.4.2.3) - CORRECT ANSWER (1) Month and year the test was performed, indicated by perforation, such as is done by a hand punch (2) Name or initials of person performing the test and the name of the agency performing the test How often should electronic monitoring device/systems be tested and maintained? (7.6.1) - CORRECT ANSWER Annually What is included at minimum in the electronic monitoring system/ device testing? (7.6.1) - CORRECT ANSWER (1) Power supply inspection/battery change (2) Obstruction sensor inspection (3) Location sensor inspection (4) Pressure indication inspection (5) Connection continuity inspection How often should wheeled unit hoses be completely uncoiled and examined? (7.7.1-.2) - CORRECT ANSWER Annually including pressure regulator for outlet static pressure and flow rate. In what circumstances should an extinguisher be recharged? (7.8.1.1) - CORRECT ANSWER After any use of when the need is indicated by an inspection or servicing How should the amount of recharge agent be verified? (7.8.1.3) - CORRECT ANSWER By weighing How is the weight of the extinguisher indicated? (7.8.1.3.1) - CORRECT ANSWER They will have the gross weight marked on the nameplate or valve, otherwise a permanent label that indicates the gross weight shall be affixed to the cylinder What types of extinguishers are not required to have weight marked? (7.8.1.3.3) - CORRECT ANSWER Pump tank water and pump tank calcium choloride What type of test shall be performed after recharging stored-pressure and self expelling extinguishers? (7.8.1.3.4) - CORRECT ANSWER A leak test Can an extinguisher be recharged if it is beyond the hydrostatic testing date? (7.8.1.3.5) - CORRECT ANSWER No How frequently should a pump tank extinguisher be recharged? (7.8.2.1) - CORRECT ANSWER Every 12 months How frequently should a wetting agent extinguisher be recharged? (7.8.2.2) - CORRECT ANSWER Agent should be replaced annualy How often shall the premixed agent in liquid charge-type AFFF and FFFP fire extinguishers be replaced? (7.8.2.3.1) - CORRECT ANSWER at least once every 3 years Can an agent other than those listed on nameplate be used for recharging? (7.8.3.1) - CORRECT ANSWER NO What can be done with the remaining dry chemical agent in a discharged extinguisher? (7.8.3.3.1) - CORRECT ANSWER The remaining dry chemical shall be permitted to be re-used, provided that it is thoroughly checked for the proper type, contamination, and condition. When can a Dry Chemical Agent be re-used? (7.8.3.4.1) - CORRECT ANSWER When a closed recovery system is used and the agent is stored in a sealed container to prevent contamination. Prior to re-use, the dry chemical shall be thoroughly checked for the proper type, contamination, and condition. How can a Halogenated agent be removed from extinguisher? (7.8.3.8.1) - CORRECT ANSWER Only using a listed halon closed recovery system. Can halogenated agent be reused? (7.8.3.8.1) - CORRECT ANSWER The fire extinguisher containing agent shall be examined internally for contamination or corrosion or both, and agent shall be re-used only if no evidence of internal contamination is observed. How is the amount of liquid agent in water type extinguishers determined? (7.8.3.10) - CORRECT ANSWER (1) Exact measurement by weight (2) Exact measurement by volume (3) Anti-overfill tube, if provided (4) Fill mark on fire extinguisher shell, if provided Can Wet Chemical and water mist agents be reused? (7.8.3.11.1) - CORRECT ANSWER NO In what situations shall wet chemical and water mist be discarded? (7.8.3.11) - CORRECT ANSWER -If partially discharged -at the hydrostatic interval What is used to to pressurize stored-pressure dry chemical and halogenated type extinguishers? (7.8.4) - CORRECT ANSWER Standard industrial grade nitrogen, argon, or compressed air (dependent on specific extinguisher propellant). Each has dew point specifics To what point shall a rechargeable stored-pressure-type fire extinguisher be pressurized to? (7.8.4.5) - CORRECT ANSWER only to the charging pressure specified on the fire extinguisher nameplate When should the manufacturer's pressurizing adapter be connected to the valve assembly? (7.8.4.5.1) - CORRECT ANSWER before the fire extinguisher is pressurized. What is required on an extinguisher tag or label? (7.8.4.8.1) - CORRECT ANSWER Each fire extinguisher shall have a tag or label attached that indicates: (1) the month and year recharging was performed (2) person performing the service, (3) name of the agency performing the work. Can fire extinguishers be converted from one type to another, modified, altered, or converted for the use of a different type of extinguishing agent? (7.10.2-.3) - CORRECT ANSWER NO What extinguishers need a verification-of-service collar tag? (7.8.4.8.2/7.11) - CORRECT ANSWER Each extinguisher that has been recharged or undergone maintenance that included internal examination and/or removal of valve assembly (except those exempt). A verification-of-service collar is installed to show that an extinguisher has been depressurized, the valve has been removed, and a complete maintenance has been performed. What is the physical requirement for the verification-of-service collar tag? (7.11.1-.3) - CORRECT ANSWER Single circular piece of uninterrupted material forming a hole of a size that does not permit the collar assembly to move over the neck of the containerunless the valve is completely removed. Shall not interfere with the operation of the fire extinguisher. identify the following: (1) Month and year the recharging or internal examination was performed (2) Name of the agency performing the work What extinguishers are exempt from Service collars? (7.11.4) - CORRECT ANSWER New extinguishers requiring an initial charge in the field; Liquefied gas, halogenated agent, and carbon dioxide extinguishers that have been recharged without valve removal; and Cartridge- and cylinder-operated extinguishers Who can perform hydrostatic testing? (8.1.2.1) - CORRECT ANSWER Hydrostatic testing shall be performed by persons who are trained in pressure testing procedures and safeguards and who have testing equipment, facilities, and an appropriate manufacturer's service manual(s) available. Personnel performing hydrostatic testing shall be certified by an organization with a certification program acceptable to the AHJ Which types of extinguishers require hydrostatic testing every 5 years? (table 8.3.1)? - CORRECT ANSWER 5years -Stored-pressure water, water mist, loaded stream, and/or antifreeze -Wetting agent -AFFF (aqueous film-forming foam) -FFFP (film-forming fluoroprotein foam) -Dry chemical with stainless steel shells -Carbon dioxide -Wet chemical Which types of extinguishers require hydrostatic testing every 12 years? (table 8.3.1)? - CORRECT ANSWER -Dry chemical, stored-pressure, with mild steel shells, brazed brass shells, or aluminum shells -Dry chemical, cartridge- or cylinder-operated, with mild steel shells -Halogenated agents -Dry powder, stored-pressure, cartridgeor cylinder-operated, with mild steel shells In what condition should a extinguisher or shell be condemned or destroyed by owner and not undergo hydrostatic testing? (8.4.2) - CORRECT ANSWER (1)Where repairs by soldering, welding, brazing, or use of patching compounds exist (2) Where the cylinder threads are worn, corroded, broken, cracked, or nicked (3) Where corrosion has caused pitting, including pitting under a removable nameplate or name band assembly (4) Where the fire extinguisher has been exposed to excessive heat, flame, or fire (5) Where a calcium chloride-type extinguishing agent has been used in a stainless steel fire extinguisher (6) Where the shell is of copper or brass construction joined by soft solder or rivets (7) Where the depth of a dent exceeds 1 ⁄10 of the greatest dimension of the dent if not in a weld or exceeds 1⁄4 in. (6 mm) if the dent includes a weld (8) Where any local or general corrosion, cuts, gouges, or dings have removed more than 10 percent of the minimum cylinder wall thickness (9) Where a fire extinguisher has been used for any purpose other than that of a fire extinguisher What happens if an extinguisher fails a hydrostatic test? (8.4.2) - CORRECT ANSWER It shall be condemned or destroyed What is done when an extinguisher is required to be condemned? (8.8) - CORRECT ANSWER Owner shall be notified in writing, cylinders stamped with "condemned" in minimum letter heights of 1/8" [Show More]

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