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A series of questions and answers related to s12 certificate of fitness sprinkler exam. It covers various aspects of sprinkler systems, including system components, inspection procedures, and maintenance requirements. The content is structured in a question-and-answer format, making it useful for exam preparation and quick reference. It addresses key concepts and terminology relevant to fire protection systems, such as sprinkler types, system deficiencies, and maintenance practices. Designed to help individuals prepare for the s12 certificate of fitness sprinkler exam by providing a comprehensive review of essential topics and concepts. It includes questions related to system components, inspection procedures, and maintenance requirements, making it a valuable resource for exam preparation.
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visvAvconditionvinvwhichvthevapplicationvofvthevcomponentvisvnotvwithinvitsvdesignedvlimitsvorvspecific ationsv-vCORRECTvANSWER-Deficiancy
visvAvdeficiencyvthat,vifvnotvcorrected,vcanvhavevanveffectvonvthevperformancevofvthevfirevprotectionvsy stem.v-vCORRECTvANSWER-CRITICALvDEFICIENCY
visvAvsprinklervfabricatedvwithvcorrosionvresistantvmaterials,vorvspecialvcoatingsvtovbevusedvinvanvatm ospherevthatvwouldvcorrodevstandardvsprinklers.v-vCORRECTvANSWER-CORROSION- RESISTANTvSPRINKLER
visvAvsprinklervsystemvemployingvopenvsprinklersvthatvarevattachedvtovavpipingvsystemvthatvisvconnec tedvtovavwatervsupplyvthroughvavvalvevthatvisvopenedvbyvthevoperationvofvavdetectionvsystemvinstalled vinvthevsamevareasvasvthevsprinklers.vWhenvthisvvalvevopens,vwatervflowsvintovthevpipingvsystemvandv dischargesvfromvallvsprinklersvattached.v-vCORRECTvANSWER-DELUGEvSPRINKLERvSYSTEM
visvAnvapprovedvsystemvofvdevicesvandvequipmentvwhichvdetectsvavfirevandvdischargesvanvapprovedvf irevextinguishingvagentvontovorvinvthevareavofvavfire.vSuchvtermvincludesvautomaticvsystemsvand,vwhe revsuchvsystemsvarevauthorizedvbyvthisvcodevorvthevBuildingvCode,vmanuallyvactivatedvsystems.v- vCORRECTvANSWER-FIREvEXTINGUISHINGvSYSTEM
vshallvnotvbevusedvtovfastenvthevsystemvorvbuildingvattachmentsvtovthevstructure.vHangersvusedvwithv ----vpipingvmustvbevlistedvforvusevwithvthevpipingvmaterial.v-vCORRECTvANSWER-plastic ----vshouldvnotvbevallowedvtovbuild- upvonvthevgravityvtank.vThevextravweightvofvitvmightvweakenvthevsupportsvofvthevtankvandvcausevthevta nkvtovcollapsev-vCORRECTvANSWER-ice
vsupervisionvdevicesvmonitorvthevwatervtemperaturevandvthevwatervlevelvinvthevgravityvtank.Thesevde vicesvsendvsignalsvtovanvapprovedvcentralvstationvcompanyvaboutvthevwatervlevelvandvwatervtempera ture.v-vCORRECTvANSWER-Electrical ----vsystemsvmustvbevinstalledvtovputvoutvfiresvthatvstartvinvthevcompactorvchute.v- vCORRECTvANSWER-Sprinkler -----vandv----- Impairmentvcoordinators/buildingvownersvshallvensurevthevplacementvofvthesevtagsvbyvMFSPC'svorv MPv(asvrestricted).v-vCORRECTvANSWER-Impairmentvcoordinators/buildingvowners
vsprinklervheadvpervsystemvtowardvthevendvofvonevbranchvlinevshallvalsovbevremoved.vThisvisvdonevforv investigatingvforvthevpresencevofvforeignvorganicvorvinorganicvmaterial.v-vCORRECTvANSWER- 1
visvAvsprinklervsystemvemployingvautomaticvsprinklersvthatvarevattachedvtovavpipingvsystemvcontaini ngvairvorvnitrogenvundervpressure.vThevreleasevofvthevairvorvnitrogen,(asvfromvthevopeningvofvavsprinkl er)vresultsvinvthevwatervpressurevopeningvavvalvevknownvasvavdryvpipevvalve,vresultingvinvthevflowvofvw atervintovthevpipingvsystemvandvoutvofvthevfusedvsprinklersvheads.v-vCORRECTvANSWER- DRYvPIPEvSPRINKLERvSYSTEM
Avpumpvthatvisvavprovidervofvliquidvflowvandvpressurevdedicatedvtovfirevprotection.vAvfirevpumpvisvavpa rtvofvavfirevsprinklervsystem'svwatervsupplyvandvcanvbevpoweredvbyvelectric,vdieselvorvsteam.vThevpum pvintakevisveithervconnectedvtovthevpublicvundergroundvwatervsupplyvpipingvorvavstaticvwatervsourcev( e.g.,vtank,vreservoir,vlake).vThevpumpvprovidesvwatervflowvatvhighervpressurevtovthevsprinklervsystemv risersvandvhosevstandpipes.v-vCORRECTvANSWER-FIREvPUMP ----arevdesignedvtovcontrolvavfirevuntilvitsvoriginalvfuelvsourcevisvdepletedvorvuntilvfire- fightingvactivitiesvcanvcommence.vAvfirevisvcontrolledvbyvcoolingvthevceiling- levelvairvtemperatures,vreducingvthevfire'svratevofvheatvreleasevandvpre- wettingvadjacentvcombustibles.v-vCORRECTvANSWER- CONTROLvMODEvSPECIFICvAPPLICATIONvSPRINKLERSv(CMSA)
.vThevsprinklervsystemvcannotvbevsuppliedvifvtherevisvnotvenoughv-vCORRECTvANSWER- watervinvthevtank .Avpressurevtankvisvusuallyvhousedvinvanv----vstucturev-vCORRECTvANSWER-enclosed (centrifug)Av---- vtankvcanvbevusedvifvthevtankvsuppliesvthevpumpvduevtovgravity.vsupplyvsource.vAvwatervtankvcanvbevu sedvifvthevtankvsuppliesvthevpumpvduevtovgravity.vInvothervwordsvthevweightvofvthevwatervforcesvthevw atervtovflowvintovthevpumpv-vCORRECTvANSWER-water (dryvpiping)Invmostvcasesvthe airvpressurevinvthevpipingvisvcontrolledv-vCORRECTvANSWER- automaticallyvbyvanvairvmaintenancevdevice (FDC)v.v-vCORRECTvANSWER- (FDC)Avworkingvspacevofvnotvlessvthan ----vinchesvinvwidth,v----vinchesvinvdepthvandv----vinchesvinvheightvshallvbevprovidedvand maintainedvinvfrontvofvandvaroundvwall-mountedvandvfree-standingvfirevdepartment connections,vexceptvasvotherwisevrequiredvorvapproved.v-vCORRECTvANSWER-36/26/ (gravity)vDuringvfreezingvweather,vthevtemperaturev ofvthevwatervinsidevthevtankvandvthevriservmustvbevcheckedv(howvoften)v-vCORRECTvANSWER- dailyvorvweekly (gravity)vThevpumpsvfillvthevtankvatvavratevofv---- vgpmv(gallonsvpervminute)vorvmore.vThevfloatsvturnvonvthev---- vpumpvwhenvthevwatervinvthevtankvisvtoovlow.v-vCORRECTvANSWER-65/fill (howvman)devicesvarevusedvtovreducevthevtimevneededvtovopenvthevclappervandvallowvwatervinto thevsystem.v-vCORRECTvANSWER- 2 (PIV)vThevbuildingvorvsectionvofvthevbuildingvcontrolledvby thevvalvevisvusuallyvmarkedvonvthev-vCORRECTvANSWER-post (preaction)Watervdamagevisvusuallyvcausedvby----vorv---- .vUndernormalvconditionsvtherevisvnovwatervinvthevpiping.vThevairvinvthevpipingvmayvorvmayvnotvbe undervpressure.v-vCORRECTvANSWER-damagedvsprinklers/brokenvpiping. (pressvtankvalarm)vThevalarmvsystemvautomaticallyvmonitorsvthevair-to- watervvolumevratiovwhichvshouldvalwaysvbev 1 v(---)vtov 2 v(----).v-vCORRECTvANSWER-air/water (pressurevtank)vsome
sprinklersvsystemsvrequirevmorevthanv---- vgallonsvofvwater.vWhenvthisvoccursvseveralvpressurevtanksvarevusedvinvcombinationvtovsupplyvthevsy stem.v-vCORRECTvANSWER-6, (seismic)Thevdistancevfromvthevlastvbracevtovthevendvofvthevpipevbeingvbracedvshallvnotvexceedv---- vfeetvforvsystemsvconstructedvundervthev 2008 vBuildingvCode.vThevdistancevfromvthevlastvbracevtovthe vendvofvthevpipevbeingvbracedvshallvnotvexceedv---- vfeetvforvsystemsvconstructedvundervthev 2014 vBuildingvCode.v-vCORRECTvANSWER-20/ (vert)vAlthoughvthevverticalvturbinevpumpvisvcapablevofvdrawingvwatervfromvwellsvitvisvgenerallyvnotvre commendedvtovusevavwellvasvthevmainvwatervsupplyvsourcevbecausevitvmayv-vCORRECTvANSWER- dryvupvwithoutvwarning. (vert)vShouldvthevwllvdryvupvitvwouldvmakevthev---- vpumpvuseless.vtvisvbettervtovdrawvwatervfromvthevwellvandvtovfillvavwatervstoragevtank.v- vCORRECTvANSWER-turbine (vertical)vWhenvitvreachesvthevrotatingvimpellersvthev-----andv---- varevincreasedvandvthenvforcefullyvdischargedvintovthevfirevprotectionvsystem.v-vCORRECTvANSWER- watervpressure/flow 1.vAutomaticvandvnon- automaticvsprinklervsystemsvshallvbevinspected,vtestedvandvmaintainedvasvrequiredvbyvNFPAv#25v 20 11 veditionvbyvavcompetentvpersonvholdingvavS- 12 vCertificatevofvFitnessvandvemployedvorvcontractedvbyvthevowner,vtovseevthatvallvpartsvofvthevsyste mvarevinvgoodvworkingvorder,vandvthatvthevFirevDepartmentvconnection(s),vifvany,varevreadyvforvimme diatevusevbyvthevFirevDepartment.vAvdetailedvrecordvshallvbevkeptvonvthevpremisesvorvothervapproved vlocation,vforvavminimumvofv 3 vyearsvforvexaminationvbyvanyvrepresentativevofvthevFirevDepartment.v- vCORRECTvANSWER- 1.singlevlinevof pipingvdrilledvatvintervalsvforvwatervdischarge.vThesevsystemsvarevusuallyvfoundvin basementsvorvothervareasvdifficultvtovreachvinvfirevfightingvoperations.v-vCORRECTvANSWER- Perforatedvpipevsystems 15 V.vINDIVIDUALSvAUTHORIZEDvTOvPERFORMvTASKSvASvSPECIFIEDvINvTHEvNEWvYORKvCITYvFIREvCO DEv-vCORRECTvANSWER- 2.Avsupplyvofvatvleastvsixvextravsprinklervheadsvshallvbevkeptvavailablevonvthevpremises,vtovreplacevpr omptlyvanyvfusedvorvdamagedvsprinklers.vAnyvheadvwhichvhasvopenedvorvhasvbeenvdamagedvshallvb evreplacedvimmediatelyvwithvsprinklervheadvofvsimilarvcharacteristicsvsuchvasvoperatingvtemperatur e,vorificevsize,vdeflectorvorientationvandvthermalvsensitivity.v-vCORRECTvANSWER-
Av----vwatervsuppyvavwouldvappearvtovbevallvthatvisvneededvtovsupplyvavsprinkler firevprotectionvsystem.vThisvassumesvthatvtherevisvenoughvwatervatvanvacceptablevpressure.v- vCORRECTvANSWER-single AvBRIEFvOVERVIEWvOFvPIPINGvANDvSUPPORTvFUNDAMENTALSvSprinklervsystemvpipingvisvcategoriz edvasvfollowsv-vCORRECTvANSWER- Avcompletevrecordvshouldvbevmadevforveachvvalvevinvthevsystem.vThisvrecordvshouldvincludevthev----v- vCORRECTvANSWER-exactvlocation,vthevdatevitvwasvinstalled,vthevmake,vthe directionvofvopening,vnumbervofvturnsvtovopen,vandvanyvmaintenancevthatvwasvperformed. AvCOMPLETEvSUMMARYvOFvTASKSvOFvINSPECTION,vMAINTENANCEv&vTESTINGv- vCORRECTvANSWER- Avconnection,vnormallyvonvthevexteriorvofvthevbuilding,vthroughvwhichvthevfirevdepartmentvcanvpumpv supplementalvwatervintovthevsprinklervsystem,vstandpipe,vorvothervsystemvfurnishingvwatervforvfireve xtinguishmentvtovsupplementvexistingvwatervsupplies.v(FormerlyvknownvasvSiamesevconnection.)v- vCORRECTvANSWER-FIREvDEPARTMENTvCONNECTION Avdetailedvrecordvshallvbevkeptvonvthevpremisesvorvothervapprovedvlocation,vforvavminimumvofv- vCORRECTvANSWER- 3 vyearsvforvexaminationvbyvanyvrepresentativevofvthevFirevDepartment. Avdevicevdesignedvtovdischargevwatervorvfoam- watervsolutionvinvavpredetermined,vfixed,vorvadjustablevpattern.vExamplesvinclude,vbutvarevnotvlimite dvto,vsprinklers,vsprayvnozzles,vandvhosevnozzles.v-vCORRECTvANSWER-DISCHARGEvDEVICE Avfillvpumpvisvnotvnecessaryvifvthevwatervpressurevinvthev----v---- vmainvisvablevtovkeepvthevtankvfilledvwithvthevcorrectvamountvofvwater.v-vCORRECTvANSWER- cityvwater Avfirevextinguishingvsystem,vothervthanvavmistvfirevextinguishingvsystemvthatvutilizesvwatervasvthevexti nguishingvagent.v-vCORRECTvANSWER-SPRINKLERvSYSTEM Avfirevprotectionvcomponentvthatvhasvbeenvtestedvtovperformvundervparametersvspecifiedvforvitsvusev byvavnationallyvrecognizedvtestingvagency.v-vCORRECTvANSWER-Listedvdevice Avfullvtankvofvwatervhelpsvkeepvsteelvtanksvfrom----v-vCORRECTvANSWER-rusting Avgravityvtankvshouldvbevatvleastv----vfeetvabovevthevhighestvlinevofvsprinklervheadsvthatvitvsupplies.v- vCORRECTvANSWER- 25 Avgravityvtankvsystemvdeliversvwatervfromvthevtankvthroughvthevsprinklervsystemvwithoutvthevusevofv-- --v-vCORRECTvANSWER-pumpingvequipment
Avmeasurementvofvthevthermalvsensitivityvofvavsprinklervheadvexpressedvinv(meters-seconds)v1/2.v- vCORRECTvANSWER-RESPONSEvTIMEvINDEXv(RTI) Avminimumvofv---vextravsprinklervheadsvwithvthevappropriatevwrenchesvshallvbevavailablevto replacevanyvopenedvorvdamagedvsprinklervheads.vOpenedvorvdamagedvsprinklervheadsvshall bevreplacedv----v-vCORRECTvANSWER-6/immediately Avpartialvlistvofvspecificvhangervspacingvrequirementsvisvnotedvbelow:v-vCORRECTvANSWER- Avpilotvoperatedvpressurevreducingvvalvevthatvmayvbevusedvwithvavfirevorvboostervpumpvdesignedvforvt hevpurposevofvpreventingvthevincomingvwatervsupplyvpressurevfromvdroppingvbelowvavsetvpressure.v- vCORRECTvANSWER-PRESSUREvCONTROLvVALVE Avpressurevtankvisvusuallyvhousedvinvanvenclosedvstructure.vThevtemperaturevinvthevenclosurevisvkep tvatv----˚vFahrenheitvorvabove.v-vCORRECTvANSWER- 40 Avrecessedvsprinklervwithvavcovervplate.v-vCORRECTvANSWER-CONCEALEDvSPRINKLER AvREDvtagvshallvbevplacedvatvthevmainvcontrolvvalvevindicatingvthev-vCORRECTvANSWER- sprinklervcompanyvname,vdatevofvremovalvfromvservicevandvanticipatedvreturnvtovservicevdate. Avsignvattachedvtovavhydraulicallyvcalculatedvsprinklervsystemvindicatingvthevdesignvdensity,vrequire dvgallonsvpervminutevandvpressurevforvthevsystemvtovoperatevproperly.v-vCORRECTvANSWER- HYDRAULICvPLACARD Avsignvidentifyingvthev----vhousingvthevsprinklervsystemvcontrol valvevshallvbevconspicuouslyvpostedvonvthevexteriorvwallvofvthevbuildingvdirectlyvoppositevthe sidewalkvbox.vSuchvsignvshallvhavevredvlettersv 1 vinchvinvheightvonvavwhitevbackgroundvand read:v"SprinklervSystemvShutoffvValvev(indicatevdistance)vfeetvoppositevthisvsign"vorvother approvedvdesign.v-vCORRECTvANSWER-locationvofvthevsidewalkvbox Avsignvindicatingvthevlocationvofvallv----valvesvshallvbevkeptvinvthe compactorvroom.vThisvsignvisvshallvbevdisplayedvwithvthevsketchvinvthevcompactorvroom.v- vCORRECTvANSWER- Avsignvindicatingvthevlocationvofvallvcontrolvvalvesvshallvbevkeptvinvthe compactorvroom.vThisvsignvisvshallvbevdisplayedvwithvthevsketchvinvthevcompactorvroom. Allvcontrolvvalvesvinvthevsprinklervsystemvshallvbev----v-vCORRECTvANSWER-labeled Avsignalvindicatingvthevneedvforvactionvinvconnectionvwithvthevsupervisionvofvguardvtours,vfirevextingui shingvsystemsvorvequipment,vfirevalarmvsystemsvorvthevmaintenancevfeaturesvofvrelatedvsystemsv- vCORRECTvANSWER-SUPERVISORYvSIGNAL
Avsprinklervsystemvemployingvautomaticvsprinklersvthatvare attachedvtovavpipingvsystemvcontainingvairvorvnitrogenvundervpressure,vthevrelease ofvwhichv(asvfromvthevopeningvofvavsprinkler)vpermitsvthevwatervpressurevtovopenvavvalve knownvasvavdryvpipevvalve,vandvthevwatervthenvflowsvintovthevpipingvsystemvand outvthevopenedvsprinklers.v-vCORRECTvANSWER-DryvPipevSprinklervSystem Avsprinklervsystemvisvav-vCORRECTvANSWER- firevextinguishingvsystem,vothervthanvavwatervmistvsystem,vthatvutilizesvwatervasvthevextinguishingvag ent. Avsprinklervsystemvwithvavwatervflowvalarmvservesvtwovfunctions:v-vCORRECTvANSWER- 1)vItvisvanveffectivevfirevextinguishingvsystem,vandv2)vItvisvanvautomaticvfirevalarm.vAnvalarmvisvsignale dvsoonvaftervavsprinklervheadvhasvopened.vThisvisvimportantvsincevitvallowsvthevoccupants'vtimevtovle avevthevbuilding.vItvalsovsignalsvthatvthevFirevDepartmentvshouldvbevsummoned. Avsprinklervthatvdirectsv40%vtov60%vofvthevwatervinitiallyvinvavdownwardvdirectionvandvisvdesignedvtov bevinstalledvwithvthevdeflectorvinveithervthevuprightvorvpendentvposition.v-vCORRECTvANSWER-OLD- STYLE/CONVENTIONALvSPRINKLER Avstockvofvsparevsprinklersv(notvlessvthanv6)vshallvbevkeptvonvthevpremisevwherevthevtemperaturevdo esvnotvexceedv-vCORRECTvANSWER- 100 vDegreesvF Avsufficientvnumbervofvfirevguardsvshallvbevprovidedvsuchvthatveachvfloorvorvareavinvwhichvthevfirevpro tectionvsystemvisvoutvofvservicevisvpatrolledvatvleastv-vCORRECTvANSWER-oncevanvhour Avsupervisoryvdevicevsignalsvwhenvthevvalvevhas openedvthatvwillvautomaticallyvsoundvanvalarm.vThisvalarmvisvanvaudiblevsignalvatvthe premisevandvinvmanyvcasesvitvwillvtransmitvanvalarmvtovavremotevlocation,vsuchvasvanv- vCORRECTvANSWER-approvedvcentralvstationvcompany. Avsupervisoryvdevicevsignalsvwhenvthevvalvevhasv----vthatvwillvautomaticallyvsoundvan alarm.vThisvalarmvisvanvaudiblevsignalvatvthevpremisevandvinvmanyvcasesvitvwillvtransmitvan alarmvtovavremotevlocation,vsuchvasvanvapprovedvcentralvstationvcompany.v-vCORRECTvANSWER- opened Avsupervisoryvdevicevsignalsvwhenvthevvalvevhasvopenedvthatvwillvautomaticallyv- vCORRECTvANSWER-soundvan alarm. Avsupplyvofvatvleast---- extravsprinklervheadsvshallvbevkeptvavailablevonvthevpremises,vtovreplacevpromptlyvanyvfusedvorvdam agedvsprinklers.v-vCORRECTvANSWER- 6
Avsystemvwherevthevwatervpipingvservicesvbothv2½vin.v(65vmm)voutletsvforvfirevdepartmentvusevandvo utletsvforvautomaticvsprinklers.v-vCORRECTvANSWER- COMBINATIONvSTANDPIPEvANDvSPRINKLERvSYSTEM Avtankvsupplyingvwatervforvwater-basedvfirevprotectionvsystems.v-vCORRECTvANSWER-WATERvTANK Avtankvusingvairvpressurevtovsupplyingvwatervforvwater- basedvfirevprotectionvsystems.vTankvcontentsvtovbevmaintainedvatvonevthirdvairvtovtwovthirdsvwater.v- vCORRECTvANSWER-PRESSUREvTANK Avtypevofvfastvresponsevsprinklervthatvisvlistedvforvitsvcapabilityvtovprovidevfirevsuppressionvofvspecific vhighvchallengevfirevhazards.v-vCORRECTvANSWER- EARLYvSUPPRESSIONvFASTvRESPONSEvSPRINKLERv(ESFR) Avtypevofvsprayvsprinklervwithvavmaximumvareavofvcoveragevofv 400 vsquarevfeetv(20vfootvbyv 20 vfootvspa cingvbetweenvsprinklers)vforvlightvhazardvoccupanciesvtovavmaximumvofv 144 vsquarevfeetv(12vfootvbyv 12 vfootvspacingvbetweenvsprinklers)vforvextravhazardvoccupancies.v-vCORRECTvANSWER- EXTENDEDvCOVERAGEvSPRINKLERS Avtypevofvsprinklervlistedvforvitsvcapabilityvtovprovidevfirevcontrolvforvavwidevrangevofvfirevhazards.vThev mostvcommonlyvusedvsprinklervsincev1953.v-vCORRECTvANSWER-SPRAYvSPRINKLER Avvalvevboxvisvlocatedvovervthevvalvevtovkeep ----vfromvthevvalve.v-vCORRECTvANSWER-dirt Avvalvevcontrollingvflowvtovwater- basedvfirevprotectionvsystems.vControlvvalvesvdovnotvincludevhosevvalves,vinspector'svtestvvalves,vdr ainvvalves,vtrimvvalvesvforvdryvpipe,vpreactionvandvdelugevvalves,vcheckvvalves,vorvreliefvvalves.v- vCORRECTvANSWER-CONTROLvVALVE Avvalvevdesignedvforvthevpurposevofvreducingvthevdownstreamvwatervpressurevundervbothvflowingv(re sidual)vandvnonflowingv(static)vconditions.v-vCORRECTvANSWER-PRESSURE-REDUCINGvVALVE AvvalvevdesignedvforvthevpurposevofvreleasingvexcessvairvorvwatervpressurevfromvthevFirevProtectionvP ipingvSystem.v-vCORRECTvANSWER-PRESSUREvRELIEFvVALVE Avvisualvindicatingvdevicevrequiredvforvsprinklersvmanufacturedvpriorvtov 1999 videntifyingvsmallvorific evsprinklersvandvlargevorificevsprinklersvwherevorificevsizevisvdifferentvthanvthevnominalvthreadvsizevof vthevsprinklervheadv-vCORRECTvANSWER-PINTLEvSCREWS Avvisualvinspectionvofvthevsystemvisvperformedvfromvthevfloorvtovdeterminevifvthev---,-----vandv---- varevplacevandvifvthevpipimhvhasvmovedvfromvitsvorginalvpositionv-vCORRECTvANSWER- hangers,vbracingvandvrestraints/piping
Airvpressurevinvthevtankvpermitsvforcefulvdischargevofvwatervinvthevtankvintovthevsprinklervsystem.vAvp ressurevtankvmayvbevusedvasva----vorv----vwatervsupplyvforvavsprinklervsystemv-vCORRECTvANSWER- primary/secondary AirvPressure:v-vAirvpressurevwithoutvsupervisedvairvpressurevsourcevshallvbevinspectedv(howvoften
Anvalarmvcheckvvalvevthatvisvexposedvtovchangingvwatervsupplyvpressurevneedsvanvalarmvretardingvd evice.v-vCORRECTvANSWER-AlarmvRetardingvDevices Anvautomaticvwetvsprinklervsystemvisvanveffectivevfire----system.Thisvsystem dischargesvwatervtovavlocalizedvareavthatvisvsubjectvtovfire.v-vCORRECTvANSWER-suppressio Anvelectricvbellvorvothervaudiblevsignalvdevicevmayvalsovbevlocatedv-vCORRECTvANSWER- insidevthevbuilding Anvinitiatingvdevice,vsuchvasvavvalvevsupervisoryvswitch,vwatervlevelvindicator,vorvlow- airvpressurevswitchvonvavdry-pipevorvpreactionvsprinklervsystem,vthatvtriggersvavsupervisoryvsignal.v- vCORRECTvANSWER-SUPERVISORYvSIGNAL-INITIATINGvDEVICE Anvobstructionvinvestigationvshallvalsovbevperformedvwhenevervthevfollowingvconditionsvexistvsuchva sv-vCORRECTvANSWER- pinholevleaks,vavrecordvofvbrokenvpublicvwatervmainsvinvthevvicinity,vforeignvmaterialvinvwatervdischar gedvduringvdrainvtestsvorvpluggingvofvinspector'svtestvvalvevconnection.vAvcompletevlistvofvsystemvco nditionsvrequiringvobstructionvinvestigationvarevlistedvinvChapterv 14 vandvAnnexvDvofvNFPAv#25v 2011 v edition. Antifreeze sprinklervsystemsvarevcostlyvandvarev----v-vCORRECTvANSWER-Antifreeze sprinklervsystemsvarevcostlyvandvarevdifficultvtovmaintain. Antifreezevisvusuallyvusedvfor ----v----vareas.v-vCORRECTvANSWER-smallvunheated ANTIFREEZEvSPRINKLERvSYSTEMv-v-vCORRECTvANSWER- Avwetvpipevsprinklervsystemvemployingvautomaticvsprinklersvthatvarevattachedvtovavpipingvsystemvth atvcontainsvanvantifreezevsolutionvandvisvconnectedvtovavwatervsupply.vThevantifreezevsolutionvisvdisc harged,vfollowedvbyvwater,vimmediatelyvuponvoperationvofvsprinklersvopenedvbyvheatvfromvavfire. Antifreezevsprinklervsystemsvmayvbevusedvonlyvinvaccordancevwith applicablev----v-vCORRECTvANSWER-localvhealthvregulations. Any ofvthev-----v----vsupplyvsourcesvmayvbevusedvtovsupplyvthevcompactorvsprinkler system.v-vCORRECTvANSWER-standardvwataer Any ofvthevstandardvwatervsupplyvsourcesvmayvbevusedvtovsupplyvthevcompactorvsprinkler system.vForvexample,vgravityvtanks,vfirevpumpsvandvpressurevtanksvarevallvusedvasv---- supplyvsources.v----doorsvshallvbevinstalledvinvthevchutevtovallowvfirefightervaccessvto
Atvleastvonceveveryvfivevyears,vthevFirevDepartmentvconnectionvorvconnectionsvforvavsprinklervsyste mvshallvbevsubjectedvtovavhydrostaticvpressurevtestvtovdemonstratevitsvsuitabilityvforvFirevDepartmen tvuse.vThevtestvshallvbevarrangedvtovbevconductedvbyvav----byva----Thevcontractorvshallvbevhiredvby----- v-vCORRECTvANSWER- MastervFirevSuppressionvPipingvContractor/1.vavFirevDepartmentvrepresentative/thevownervorvthevow ner'svrepresentative. Automaticvandvnon- automaticvsprinklervsystemsvshallvbevinspected,vtestedvandvmaintainedvasvrequiredvbyvNFPAv#25v 20 11 veditionvbyv-vCORRECTvANSWER-competentvpersonvholdingvavS- 12 vCertificatevofvFitnessvandvemployedvorvcontractedvbyvthevowner,vtovseevthatvallvpartsvofvthevsyste mvarevinvgoodvworkingvorder,vandvthatvthevFirevDepartmentvconnection(s),vifvany,varevreadyvforvimme diatevusevbyvthevFirevDepartment. AUTOMATICvBALLvDRIPv-vCORRECTvANSWER- Anvautomaticvdrainvvalvevhorizontallyvinstalledvatvthevlowvpointvinvthevpipingvbetweenvthevlowervchec kvvalvevandvthevFirevDepartmentvconnectionvofvautomaticvsprinklervsystems.vWatervpressurevfromvav FirevDepartmentvpumpervautomaticallyvclosesvthisvvalve.vItvautomaticallyvre- opensvwhenvpressurevceases,vpermittingvthisvpipingvtovdrainvandvtherebyvpreventingvfreezing. Automaticvfirevpumpsvmustvhavevtheirvsuctionv"undervav----head"vtovdrawvwatervfromva supplyvsource.v-vCORRECTvANSWER-positive AutomaticvTankvFillvValvesv-vCORRECTvANSWER- Strainers,vfilters,vorificesvshallvbevinspect/cleanedvquarterly.vEnclosuresvshouldvbevinspectedvdurin gvcoldvweatherv-v(withoutvtemperaturevmonitoringv-vdaily)/(withvtemperaturevmonitoringv- vweekly).vExteriorvautomaticvtankvfillvvalvesvshouldvbevinspectedvmonthly.vInteriorvautomaticvtankvfill vvalvesvshouldvbevinspectedvannuallyv(withoutvexternalvreset)/5vyearsv(withvexternalvreset). B.vFire,vBoostervandvSpecialvServicevPumps:vPumpvHouse,vHeatingvVentilatingvLouvers:v- Thevvisualvinspectionvshallvbevperformedv(howvoften)vtovensurevheatvisvnotvlessvthanv40ºFv(4.4ºC)van dv70ºFv(21ºC)vforvpumpvroomvwithvdieselvpumpsvwithoutvenginevheaters.v- vVentilatingvlouversvshallvbevfreevtovoperate.v-vCORRECTvANSWER-weekly Batteryvsystemv- vCheckvelectrolytevlevelvofvbatteryvsystemvalongvwithvthevchargervandvchargevratevweekly;v-vMonthlyv- vRemovevcorrosionvonvpumpvcasing,vcleanvandvdryvhousing;v-vQuarterlyv- vCheckvthatvterminalsvcleanvandvtight;v-vCORRECTvANSWER- Beforevauthorizingvthevplacingvofvthevfirevprotectionvoutvofvservicevthevimpairmentvcoordinatorvshall:v
valves risers piping sprinklervheadsvandvfirevdeptvconnections alarms fire boostervandspecialvservicevpumps obstructions andvconditionsvofvallvothervsystemvequipmentvandvappurtenances. DevicesvandvEquipmentvSupervisedv-vCORRECTvANSWER- DieselvEnginevPumpvSystem:v-vFuelvsystemv-vTankvlevelvshallvbev---- vfull,vthevtankvfloatvswitchvshallvbevinvautovposition,vsolenoidsvvalvevoperational,vcheckvforvwatervinvt hevfuelvsystemvanvconditionvofvflexiblevhosesvconnectorsvweekly.v-vLubricationvsystemv- vOilvlevelvinvrightvanglevgearvdrivevisvnormalvandvensurevthatvlubevoilvheatervisvadequatelyvlubricatedv( howvoften)v-vCORRECTvANSWER-2/3vweekly Drainvtestvresultsvshallvbevpostedvonvthevtagvindicatingvbothvthev-vCORRECTvANSWER- staticvandvflowvpressuresvbeforevandvaftervthevsystemvwasvplacedvinvanvoutvofvservicevcondition. Drainagevinvsystemvareav(NFPAv11.2.8)v- vThevareavbeneathvandvsurroundingvavfoamvwatervsprayvsystemvshallvbevinspectedvtovensurevthatvdra inagevfacilities,vsuchvasvtrapvsumpsvandvdrainagevtrenches,varevnotv---- vandvretentionvembankmentsvorvdikesvarevinvgoodvrepair.v-vCORRECTvANSWER-blocked DryvPipevSprinklervSystemsvarevinstalledv---- sincevthevprotectedvareavcannotvbevheatedvtovpreventvfreezingvconditions.vInv-vCORRECTvANSWER- wherevitvisvimpracticalvtovinstallvavwetvpipevsystem DryvPipevValves/QuickvOpeningvDevices:v-vCORRECTvANSWER- Eachvdelugevvalvevisvcapablevofv----vandv----voperationv-vCORRECTvANSWER-automaticvandvmanual
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