NFPA 10 HYDRO-STATIC TESTING Ch.8 EXAM 58 Questions with Verified Answers,100% CORRECT

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NFPA 10 HYDRO-STATIC TESTING Ch.8 EXAM 58 Questions with Verified Answers Cylinders and cartridges bearing U.S. department of Transportation or transport Canada (TC) markings - CORRECT ANSWER shall... be retested in accordance with the DOT or TC regulations. Hydrostatic testing shall be performed by persons who are - CORRECT ANSWER who are trained in pressures procedures and safeguards who have testing equipment, facilities, and appropriate manufacturer's service manual available Personnel performing hydrostatic testing shall be certified by - CORRECT ANSWER organizations with a certification program acceptable to the authority having jurisdiction hydrostatic testing facilities with a DOT certification[requalification identification number(RIN)] or TC certification shall - CORRECT ANSWER be permitted to perform the task of hydrostatic testing without having any additional certification as a fire extinguisher technician where hydrostatic testing is subcontracted to a facility - CORRECT ANSWER the technician shall perform assembly and disassembly of valves and cylinders, replacement of any parts or components, and all extinguisher service work A hydrostatic test shall always include - CORRECT ANSWER both internal and external visual examination of the cylinders hydrostatic testing shall be conducted using - CORRECT ANSWER water or another compatible non-compressible fluid as the test medium air or other gas shall - CORRECT ANSWER not be used as the sole means for pressure testing all air shall be - CORRECT ANSWER vented prior to hydrostatic testing, to prevent violent and dangerous failure of the cylinder fire extinguishers having aluminum cylinders or shells suspected of being exposed to temps. in excess of (350 degrees F) (177 degrees C) shall be - CORRECT ANSWER removed from service and subjected to a hydrostatic test test pressure gauges shall be - CORRECT ANSWER certified accurate to plus 0.5 % or better of full range of the gauge test pressure gauges shall be - CORRECT ANSWER capable of being read to within 1% of the test pressure. Interpolation point od mid-point between the smallest graduation shall be permitted test pressure gauges shall be - CORRECT ANSWER capable of indicating 90% to 110% of the test pressure pressure gauges used on test equipment shall - CORRECT ANSWER calibrated at least semi-annually master gauges of dead weight testers shall be - CORRECT ANSWER calibrated at least annually all hydrostatically tested cylinders and apparatus, except water type extinguishers shall be - CORRECT ANSWER thoroughly dried after testing temperature used for drying shall not - CORRECT ANSWER exceed 150 degrees F (66 degrees C) equipment used for hydrostatic testing of high-pressure cylinders and cartridges(DOT 3series) - CORRECT ANSWER shall meet the specifications of CGA C-1, Methods of hydrostatic Testing of Compressed Gas Cylinders test equipment for low-pressure cylinders and hose assemblies(proof pressure test) - CORRECT ANSWER *cylinders and hose assemblies shall be tested within a protective cage device or placed behind a protective shield that permits visual observation while under pressure for leaks, bulges and other harmful defects *a hydrostatic test pump, hand or power-operated, shall be capable of producing not less than 150% of the test pressure and shall include appropriate check valves and fittings *a flexible connection between the pump and the test cylinder shall be provided so that it is possible to test through the cylinder opening, test bonnet, hose outlet, or nozzle as applicable hydrostatic test intervals for stored pressure water, water mist, loaded stream, and or antifreeze - CORRECT ANSWER 5yrs. hydrostatic test intervals for wetting agent - CORRECT ANSWER 5yrs. hydrostatic test intervals for AFFF - CORRECT ANSWER 5yrs. hydrostatic test intervals for FFFP - CORRECT ANSWER 5yrs. hydrostatic test intervals for dry chemical with stainless steel shells - CORRECT ANSWER 5yrs. hydrostatic test intervals for wet chemical - CORRECT ANSWER 5yrs. hydrostatic test intervals for dry chemical, stored pressure, with mild steel shells, brazed brass shells or aluminum shells - CORRECT ANSWER 12yrs. hydrostatic test intervals for dry chemical, cartridge or cylinder operated with mild steel shells - CORRECT ANSWER 12yrs. hydrostatic test intervals for halogenated agents - CORRECT ANSWER 12yrs. hydrostatic test intervals for dry powder, stored pressure, cartridge or cylinder operated, with mild steel shells - CORRECT ANSWER 12yrs hydrostatic retest shall conducted - CORRECT ANSWER within the calendar year of the specified test interval nitrogen cylinders, argon cylinders, carbon dioxide cylinders or cartridges used for inert gas storage that are used as expellants for wheeled fire extinguishers and carbon dioxide extinguishers shall - CORRECT ANSWER shall be hydrostatically tested every 5yrs. cylinders except those charged with carbon dioxide shall - CORRECT ANSWER shall be permitted to be hydrostatically tested every 10yrs. in lieu of the requirements in 8.3.2.1 Nitrogen cartridges, argon cartridges, and carbon dioxide cartridges used as an expellants for hand portable fire extinguishers that have dot or tc markings - CORRECT ANSWER Shall be hydrostatically tested or replaced according to the requirements of the DOT or TC DOT 3E Cartridges or TC 3EM CARTRIDGES - CORRECT ANSWER Shall be exempt from periodic hydrostatic retest A hydrostatic test shall be performed on fire extinguisher hose assemblies - CORRECT ANSWER Equipped with a shut-off nozzle at the end of the hose High pressure and low pressure accessory hose other than agent discharge hose used on wheel extinguishers - CORRECT ANSWER Shall be hydrostatically tested If at any time a fire extinguishers shows evidence of dense mechanical injury or corrosion to the extent as to indicate weakness - CORRECT ANSWER It shall be condemned and hydrostatically retested Pump tanks - CORRECT ANSWER Shall not be required to comply Non rechargeable fire extinguishers other than halogenated agent types shall not be required to comply - CORRECT ANSWER But shall be discharge and discarded where the fire extinguishers shows evidence of dense mechanical injury or corrosion to the extent of indicating weakness Non-rechargeable halon agent type fire extinguisher that shows evidence of this mechanical injury or corrosion to the extent indicating weakness shall - CORRECT ANSWER Shall be removed from service shall not be discharged and shall be returned to the manufacturer a fire equipment dealer or a distributor to permit recovery of the halon The pressure in a hydrostatic test of a cylinder - CORRECT ANSWER Shall be maintained for a minimum of 30 seconds but for a time not less than is required for a complete expansion of the cylinder and to complete the visual examination of the cylinder Old valve internal parts and hose assemblies - CORRECT ANSWER Shall be removed and the fire extinguishers shall be emptied before testing All types of extinguishers except the water type - CORRECT ANSWER Shall have all traces of extinguishing agent removed from the inside of the extinguisher before they are filled with water The hydrostatic testing of dry chemical and dry powder fire extinguishers having an externally mounted gas cartridge shall - CORRECT ANSWER Shall have the cartridge and cartridge receiver removed and a plug inserted into the opening all hoses shall be removed from cylinders prior to hydrostatic testing all stored pressure extinguishers shall have the valve removed from the cylinder and replaced with a test bonnet or adapter A drop in pressure of the test gauge which is an indicator of a leak shall - CORRECT ANSWER Shall be cause for rejection or retest. Cylinders passing the hydrostatic test shall - CORRECT ANSWER Shall be thoroughly dried internally before being returned to service. If heated air is used to drive the cylinder the temperature shall not exceed 150 degrees Fahrenheit or 66 degrees Celsius inside the shell. The hydrostatic testing of high pressure cylinder and cartridges shall - CORRECT ANSWER Shall be in accordance with the procedures of TC, DOT and CGA C-1 Hose assemblies shall have - CORRECT ANSWER Shall have the location of all couplings mark prior to hydrostatic testing. The hose shall be completely filled with water before testing. For dry chemical and dry powder types all traces of dry chemical or dry powder shall be removed prior to testing. The hose assembly shall be placed within a protective cage or device whose design permits visual observation during the test. Pressure for hose assemblies shall - CORRECT ANSWER Shall be applied at a rate of rise such that the test pressure is reached in 1 minute. Test pressure for a whole the family she'll be maintained for a minimum of 1 minute. Observation may be made to detect any distortion on leakage while the hoses is pressurized. Leakage distortion on permanent movement of coupling shall constitute a failure of the hydrostatic test. Hose assemblies passing the hydrostatic test shall - CORRECT ANSWER Shall be thoroughly dried internally. If he did use the temperature shall not exceed 150 degrees Fahrenheit or 66 degrees Celsius. Stored pressure fire extinguishers shall - CORRECT ANSWER Shall be hydrostatically tested to the pressure specified on the extinguisher nameplate. Where pressure is not specified on the nameplate, the extinguish shall be tested at the factories test pressure not to exceed three times the extinguisher service pressure. Fire extinguishers that are required to be returned to the manufacturer for recharging shall be hydrostatically tested only by the manufacturer. (low pressure cylinders) Cartridge or cylinder operated dry chemical and dry powder type extinguishers shall be - CORRECT ANSWER Shall be hydrostatically tested at their original factory pressure as shown on the name plate on shell (High pressure cylinders) DOT 3A, 3AA, or 3AL cylinders used as carbon dioxide extinguishers or nitrogen cylinders, argon cylinders, or carbon dioxide cylinders that are used with wheeled extinguishers shall be - CORRECT ANSWER She'll be tested at 5/3 the service pressure as stamped into the cylinder. Carbon dioxide fire extinguishers having cylinder specification ICC3 she'll be tested at 3000 psi. Hose assemblies - CORRECT ANSWER Carbon dioxide hose assemblies requiring hydrostatic pressure test shall be tested and 1250 psi. Dry chemical, dry powder, water, foam and halogenated agent discharge hose assemblies requiring hydrostatic pressure test shall be tested at 300 psi or at the service pressure whichever is higher. Low pressure accessory hoses used on wheels extinguishers shall be tested at 300 psi. High pressure accessory hoses used on wheeled extinguishers shall be tested at 3000 psi. The the Records for hydrostatic test shall be - CORRECT ANSWER She'll be maintained by the organization that performed the test until either the expiration of the test. Or until the cylinder is again tested whichever occurs first. Low pressure cylinder records non DOT types extinguishers shall have the following information recorded on the label - CORRECT ANSWER Month and year the test was performed name or initials of the person performing the test and name of the test agency performing a test High pressure cylinder and cartridges records shall have - CORRECT ANSWER Cylinders are cartridges that pass the hydrostatic test shall be stamped with the retailer's identification number and the month and year of the retest DOT/ TC requirements When a fire extinguisher cylinder shell or cartridge fails a hydrostatic pressure test or fails to pass a visual examination it shall be - CORRECT ANSWER It shall be condemned are destroyed by the owner or the owner's agent. When a cylinder is required to be condemned the retailers shall notify the owner in writing that the cylinder is condemned and that it cannot be reused. A condemned extinguisher shall not be repaired. [Show More]

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