DRIVER OPERATOR STUDY STATE QUESTIONS AND ANSWERS
8.35dpoundsd-dans✔✔Howdmuchddoesd1dgallondofdwaterdweigh?231dcubicdinchesd-
dans✔✔Howdmanydcubicdinchesddoesd1dgallondofdwaterdcontain?62.5dpoundsd-
dans✔✔Howdmanydpoundsddoesd1dcubicdfootdofdwaterdweigh?7.481dgallonsd-
dans✔✔Howdmanydgallonsdofdwaterddoesd1dcubicdfootdcontain?1,728dcubicdinchesd-
dans✔✔Howdmanydcubicdinchesdaredtheredind1dcubicdfoot?.434dpsid-
dans✔✔Ad1dfootdhighdcolumndofdwaterdexertsdhowdmuchdpsidatdit'sdbase?2.304dfeetd-
dans✔✔Howdmanydfeetdwilld1dpsidofdpressuredraisedadcolumndofdwater?13.55dinchesd-
dans✔✔1dinchdofdmercurydisdequaldtodhowdmanydinchesdofdwater?HGd-
dans✔✔Whatdisdthedsymboldfordinchesdofdmercury?14.7dfeetd-
dans✔✔Howdmanydfeetdisddependabledlift?33.87dfeetd-
dans✔✔Howdmanydfeetdisdtheoreticaldlift?
Bydperformingdroutinedmaintenancedchecksdondadregulardbasis.d-
dans✔✔Howdcandmostdapparatusdordequipmentdfailuresdbedprevented?Nod-
dans✔✔Isdexercisingdthedvolume-seriesdcontroldleverdpartdofdtheddailydapparatusdinspection?
1dinchd-
dans✔✔Apparatusdwithdwaterdtanksdofd1000dgallonsdordlessdmustdhavedadtankdfilldlinedofdatdle
astdhowdmanydinches?2dinchesd-
dans✔✔Apparatusdwithdwaterdtanksdmoredthand1000dgallonsdmustdhavedadtankdfilldlinedofdho
wdmanydinches?NFPAd1901d-
dans✔✔WhatdNFPAdisdthedstandarddfordautomotivedfiredapparatus?NFPAd11C
NFPAd1901d-dans✔✔IndustrialdfoamdpumpersdaredbuiltdaccordingdtodwhatdNFPAdnumbers?50-
75dfeetd-dans✔✔Atdwhatdheightddodelevatingdwaterddevicesdtypicallydrange?
Thedsourcedpumperd-
dans✔✔Duringdrelaydpumping,dwhichdpumperdshoulddbedthedlargestdcapacitydpumper?
Thedscenedpumperd-
dans✔✔Relaydpumpingdevolutionsdshoulddbedshutddowndatdwhatdpumperdfirst?10dfeetdofdlift
20dfeetdofdharddsuctiond-
dans✔✔Pumperdcapacitiesdaredsetdatddraftdwithdhowdmanydfeetdofdlift?
dAnddthroughdhowdmanydfeetdofdharddsuction?150dpsid-
dans✔✔Pumpersdshoulddflowdhowdmanydpsidatd100%dcapacity?200dpsid-
dans✔✔Pumpersdshoulddflowdhowdmanydpsidatd70%dcapacity?250dpsid-
, dans✔✔Pumpersdshoulddflowdhowdmanydpsidatd50%dcapacity?Backdpressured-
dans✔✔Headdpressuredequals?Acceptancedtestd-
dans✔✔Whatdisdthedtestdperformeddatdthedfactorydordafterddeliverydtodassuredthedpurchaserd
thatdthedapparatusdmeetsdBIDdspecifications?Trued-
dans✔✔Pressuredsupplieddtodadhosedshoulddnotdexceeddthatdatdwhichditdisdannuallydtested.dTr
uedordFalse?300dgpmd-dans✔✔Masterdstreamsdhavedflowsdofdoverdhowdmanydgpm?Trued-
dans✔✔Ondadstandpipedsystem,dfirefightersdshouldddisconnectdhousedlinesdanddusedtheirdown
dhoses.dTruedordFalse?200dpsid-
dans✔✔Thedmaximumdallowabledpressuredfordadrelaydisdhowdmanydpsi?0dpsid-
dans✔✔Whatdisdthedfrictiondlossdfordappliancesdwithdflowsdofdlessdthand350dpsi?10dpsid-
dans✔✔Whatdisdthedfrictiondlossdfordappliancesdwithdflowsdofdmoredthand350dpsi?Trued-
dans✔✔Theredisdnod"positivedmechanicaldblockage"dbetweendthedintakedandddischargedsidesd
ofdadcentrifugaldpump.dTruedordFalse?Andairdleak
or
Airdindthedpumpd-dans✔✔Whatdisdthedmostdcommondreasondfordlossdofdprime?
1,500dgallonsd-
dans✔✔Whatdisdthedmaximumdtankdcapacity,dindgallons,dfordadsingledreardaxledfiredunit?
Incomingdpressured-dans✔✔Adcentrifugaldpumpdtakesdadvantagedofdwhatdtypedofdpressure?
LdxdWdxdH=dVd(volume)d-
dans✔✔WhatdisdthedFormuladfordfindingdthedvolumedofdadsquaredordrectangle?
Diameterdsquareddxd.7854dxdH=dVd(volume)d-
dans✔✔WhatdisdthedFormuladfordfindingdthedvolumedofdadcylinder?
1.5dxdDdsquareddxdNP=dNRd(nozzledreaction)d-
dans✔✔WhatdisdthedFormuladfordfindingdnozzledreaction?
1.8dxdDdsquareddxdEP=dINRd(initialdnozzledreaction)d-
dans✔✔WhatdisdthedFormuladfordfindingdinitialdnozzledreaction?
1/2dGPM=dNRd(nozzledreaction)d-
dans✔✔WhatdisdthedRuledofdThumbdformuladfordfindingdnozzledreaction?
LdxdWd/d100=dsprinklerdheadsdneededd-
dans✔✔WhatdisdthedFormuladforddeterminingdthednumberdofdsprinklerdheadsdneeded?
1/2dPd+d15=dQd(gpm)
Multiplydthedanswerdxdthednumberdofdheadsdxdthedminutesdflowingdtodgetdthedtotaldflow.d-
dans✔✔WhatdisdthedFormuladfordfindingdthedgpmd(Q)dofd1dsprinklerdhead?(Q-
15)dxd2=dPd(dischargedpressure)d-
dans✔✔WhatdisdthedFormuladfordfindingdtheddischargedpressuredatdeachdsprinklerdhead?
29.7dxdDdsquareddxdsquaredrootdofdthednozzledpressure=dgpmd-
dans✔✔WhatdisdthedFormuladfordfindingdthedGPMdfordadrestricteddopeningdsuchdasdadsmooth
8.35dpoundsd-dans✔✔Howdmuchddoesd1dgallondofdwaterdweigh?231dcubicdinchesd-
dans✔✔Howdmanydcubicdinchesddoesd1dgallondofdwaterdcontain?62.5dpoundsd-
dans✔✔Howdmanydpoundsddoesd1dcubicdfootdofdwaterdweigh?7.481dgallonsd-
dans✔✔Howdmanydgallonsdofdwaterddoesd1dcubicdfootdcontain?1,728dcubicdinchesd-
dans✔✔Howdmanydcubicdinchesdaredtheredind1dcubicdfoot?.434dpsid-
dans✔✔Ad1dfootdhighdcolumndofdwaterdexertsdhowdmuchdpsidatdit'sdbase?2.304dfeetd-
dans✔✔Howdmanydfeetdwilld1dpsidofdpressuredraisedadcolumndofdwater?13.55dinchesd-
dans✔✔1dinchdofdmercurydisdequaldtodhowdmanydinchesdofdwater?HGd-
dans✔✔Whatdisdthedsymboldfordinchesdofdmercury?14.7dfeetd-
dans✔✔Howdmanydfeetdisddependabledlift?33.87dfeetd-
dans✔✔Howdmanydfeetdisdtheoreticaldlift?
Bydperformingdroutinedmaintenancedchecksdondadregulardbasis.d-
dans✔✔Howdcandmostdapparatusdordequipmentdfailuresdbedprevented?Nod-
dans✔✔Isdexercisingdthedvolume-seriesdcontroldleverdpartdofdtheddailydapparatusdinspection?
1dinchd-
dans✔✔Apparatusdwithdwaterdtanksdofd1000dgallonsdordlessdmustdhavedadtankdfilldlinedofdatdle
astdhowdmanydinches?2dinchesd-
dans✔✔Apparatusdwithdwaterdtanksdmoredthand1000dgallonsdmustdhavedadtankdfilldlinedofdho
wdmanydinches?NFPAd1901d-
dans✔✔WhatdNFPAdisdthedstandarddfordautomotivedfiredapparatus?NFPAd11C
NFPAd1901d-dans✔✔IndustrialdfoamdpumpersdaredbuiltdaccordingdtodwhatdNFPAdnumbers?50-
75dfeetd-dans✔✔Atdwhatdheightddodelevatingdwaterddevicesdtypicallydrange?
Thedsourcedpumperd-
dans✔✔Duringdrelaydpumping,dwhichdpumperdshoulddbedthedlargestdcapacitydpumper?
Thedscenedpumperd-
dans✔✔Relaydpumpingdevolutionsdshoulddbedshutddowndatdwhatdpumperdfirst?10dfeetdofdlift
20dfeetdofdharddsuctiond-
dans✔✔Pumperdcapacitiesdaredsetdatddraftdwithdhowdmanydfeetdofdlift?
dAnddthroughdhowdmanydfeetdofdharddsuction?150dpsid-
dans✔✔Pumpersdshoulddflowdhowdmanydpsidatd100%dcapacity?200dpsid-
dans✔✔Pumpersdshoulddflowdhowdmanydpsidatd70%dcapacity?250dpsid-
, dans✔✔Pumpersdshoulddflowdhowdmanydpsidatd50%dcapacity?Backdpressured-
dans✔✔Headdpressuredequals?Acceptancedtestd-
dans✔✔Whatdisdthedtestdperformeddatdthedfactorydordafterddeliverydtodassuredthedpurchaserd
thatdthedapparatusdmeetsdBIDdspecifications?Trued-
dans✔✔Pressuredsupplieddtodadhosedshoulddnotdexceeddthatdatdwhichditdisdannuallydtested.dTr
uedordFalse?300dgpmd-dans✔✔Masterdstreamsdhavedflowsdofdoverdhowdmanydgpm?Trued-
dans✔✔Ondadstandpipedsystem,dfirefightersdshouldddisconnectdhousedlinesdanddusedtheirdown
dhoses.dTruedordFalse?200dpsid-
dans✔✔Thedmaximumdallowabledpressuredfordadrelaydisdhowdmanydpsi?0dpsid-
dans✔✔Whatdisdthedfrictiondlossdfordappliancesdwithdflowsdofdlessdthand350dpsi?10dpsid-
dans✔✔Whatdisdthedfrictiondlossdfordappliancesdwithdflowsdofdmoredthand350dpsi?Trued-
dans✔✔Theredisdnod"positivedmechanicaldblockage"dbetweendthedintakedandddischargedsidesd
ofdadcentrifugaldpump.dTruedordFalse?Andairdleak
or
Airdindthedpumpd-dans✔✔Whatdisdthedmostdcommondreasondfordlossdofdprime?
1,500dgallonsd-
dans✔✔Whatdisdthedmaximumdtankdcapacity,dindgallons,dfordadsingledreardaxledfiredunit?
Incomingdpressured-dans✔✔Adcentrifugaldpumpdtakesdadvantagedofdwhatdtypedofdpressure?
LdxdWdxdH=dVd(volume)d-
dans✔✔WhatdisdthedFormuladfordfindingdthedvolumedofdadsquaredordrectangle?
Diameterdsquareddxd.7854dxdH=dVd(volume)d-
dans✔✔WhatdisdthedFormuladfordfindingdthedvolumedofdadcylinder?
1.5dxdDdsquareddxdNP=dNRd(nozzledreaction)d-
dans✔✔WhatdisdthedFormuladfordfindingdnozzledreaction?
1.8dxdDdsquareddxdEP=dINRd(initialdnozzledreaction)d-
dans✔✔WhatdisdthedFormuladfordfindingdinitialdnozzledreaction?
1/2dGPM=dNRd(nozzledreaction)d-
dans✔✔WhatdisdthedRuledofdThumbdformuladfordfindingdnozzledreaction?
LdxdWd/d100=dsprinklerdheadsdneededd-
dans✔✔WhatdisdthedFormuladforddeterminingdthednumberdofdsprinklerdheadsdneeded?
1/2dPd+d15=dQd(gpm)
Multiplydthedanswerdxdthednumberdofdheadsdxdthedminutesdflowingdtodgetdthedtotaldflow.d-
dans✔✔WhatdisdthedFormuladfordfindingdthedgpmd(Q)dofd1dsprinklerdhead?(Q-
15)dxd2=dPd(dischargedpressure)d-
dans✔✔WhatdisdthedFormuladfordfindingdtheddischargedpressuredatdeachdsprinklerdhead?
29.7dxdDdsquareddxdsquaredrootdofdthednozzledpressure=dgpmd-
dans✔✔WhatdisdthedFormuladfordfindingdthedGPMdfordadrestricteddopeningdsuchdasdadsmooth
