NFPA 10 Standards for Portable Fire Extinguishers (Part 2) 87 Questions with Verified Answers,100% CORRECT

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NFPA 10 Standards for Portable Fire Extinguishers (Part 2) 87 Questions with Verified Answers What affects the placement and distribution of portable fire extinguishers in an area? (A.6.1.1) - CORR ... ECT 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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