IRC PLUMBING PRACTICE TEST WITH
FULL PACK SOLUTIONS
What gis gthe gminimum gsize gof ga gwater gmeter gand gservice gpiping gin ginches
gfor ga gwater gsupply gsystem gof g34 gfixture gunits gwith ga gmaximum gdeveloped
glength gof g200 gfeet. gThe gwater gpressure gof gthe gsystem gis g35 gpsi. g-correct
ganswers-1 g
Table gAP201.1
,What gis gthe gminimum gsized gtrap gthat gcan gbe gused gfor gthe gdrainage gsystem
gof ga gbathtub g(with gor gwithout gshower ghead gand/or gwhirlpool gattachments)? g-
correct ganswers-1.5
Table gP3201.7
A gwater gheater gpan gdrain gmust gextend gfull-size gand gterminate gover ga
gsuitably glocated gindirect gwaste greceptor gor gmust gextend gto gthe gexterior gof
gthe gbuilding gand gterminate gnot gless gthan g_____ ginches gand gnot gmore gthan
g_____ ginches gabove gthe gadjacent gground gsurface. g-correct ganswers-6, g24
P2801.6.2
A glaundry gtray gwaste gline gis gpermitted gto gconnect ginto ga gstandpipe gfor
gautomatic gclothes gwasher gdrain. gThe gstandpipe gmust gextend gnot gless gthan
g_____ gabove gthe gtrap gweir gand gmust gextend gabove gthe gflood glevel grim gof
gthe glaundry gtray. g-correct ganswers-30 ginches g(762 gmm)
P2706.1.2.1
Clothes gclosets, glinen gclosets gand gpantries gnot gexceeding g_____ gin garea,
gwith gthe gsmallest gdimension gnot ggreater gthan g3 gfeet g(915 gmm) gand ghaving
gwall gand gceiling gsurfaces gof ggypsum gboard gwill gnot grequire gfire gsprinklers. g-
correct ganswers-24 gsquare gfeet g(2.2 gm2)
P2904.1.1
If ga gwater gcloset gcan gbe gremoved gto gprovide gcleanout gaccess, gdoes gthat
gfulfill gthe gcleanout grequirement gof gthe gcode? g-correct ganswers-No
P3005.2.3
Appliances gand gequipment gused gfor gheating gwater gor gstoring ghot gwater ghave
gto gbe gprotected gby g_____. g-correct ganswers-pressure-relief gvalve gand
gtemperature-relief gvalve gor ga gcombination gpressure gand gtemperature-relief
gvalve.
P2804.1
Where gthe gfixture gdrains gconnect gat gdifferent glevels, gthe gcommon gvent gmust
gconnect gas ga g_____ gextension gof gthe g_____ gdrain. g-correct ganswers-vertical,
gvertical
P3107.3
,The gminimum gair ggap gdistance gin ginches gfor glavatories gand gother gfixtures
gwith geffective gopening gnot ggreater gthan g1/2 ginch gin gdiameter gthat gare gclose
gto ga gwall gis: g-correct ganswers-1.5
Table gP2902.3.1
In gareas gprone gto gflooding gas gestablished gby gthe gcode, gwater gsupply
gsystems gmust gbe gdesigned gand gconstructed gto gprevent g_____ gof
gfloodwaters. g-correct ganswers-infiltration
P2602.2
When geither ga gpublic gwater-supply gor gsewer gsystem, gor gboth, gare gnot
gavailable, g_____, gan gindividual gwater-supply gor gindividual gsewage-disposal
gsystem, gor gboth, gmust gbe gprovided. g-correct ganswers-or gconnection gthereto
gis gnot gfeasible
P2602.1
_____ ginstalled gin ga gbathroom gare gnot grequired gto gbe ginstalled gwithin gan
genclosure. g-correct ganswers-direct-vent gwater gheaters
M2005.2
For gwater gsupply gsystems gused gpredominantly gfor gflush gtanks ghaving ga
gwater gsupply gfixture gunit gload gof g12, gwhat gis gthe gcomparable gdemand gin
ggallons gper gminute. g-correct ganswers-16.0
Table gP2903.6(1)
Test gequipment, gmaterials gand glabor gmust gbe gfurnished gby gthe g______ g-
correct ganswers-permittee
P2503.3
The gminimum gsize gin ginches gof ga gcombination gwaste gand gvent gpipe
gconnecting gto ga gbuilding gdrain gor gbuilding gsub gdrain gand gserving g31 gd.f.u.
gis g_____. g-correct ganswers-3
Table g3111.3
The goutlet gof ga gwater gheaters gpressure grelief gvalve, gtemperature grelief gvalve
gor gcombination gvalve, gmust gbe gdirectly gconnected gto gthe g_____. g-correct
ganswers-none gof gthe gabove
P2804.6.1
, What gis gthe gminimum gpipe gsupport gspacing gin gfeet, grequired gfor gcopper gor
gcopper galloy gtubing g(1 g1/4 ginch gdiameter gand gsmaller_ ginstalled gin ga
ghorizontal gorientation. g-correct ganswers-6
Table gP2605.1
The gflow gvelocity gof gthe gwater gdistribution gsystem gmust gbe gcontrolled gto
greduce gthe gpossibility gof g_____. g-correct ganswers-water ghammer
P2903.5
A gwet g2 ginch gvent gcan ghandle gventing gfor g_____ gfixture gunit gloads. g-correct
ganswers-4
Table gP3108.3
There gmust gbe gat gleast g_____ ginches gclearance gin gfront gof gthe gwater
gcloset, gbidet gor glavatory gto gany gwall, gfixture gor gdoor. g-correct ganswers-21
P2705.1
Open ghub gwaste greceptors gmust gbe gpermitted gin gthe gform gof ga ghub gor
gpipe gextending gnot gless gthan g_____ ginch(es) gabove ga gwater gimpervious
gfloor, gand gare gnot grequired gto ghave ga gstrainer. g-correct ganswers-1
P2706.1
The gminimum gair ggap gdistance gin ginches gfor gsink, glaundry gtrays, ggooseneck
gback gfaucets gand gother gfixtures gwith geffective gopenings gnot ggreater gthan g3/4
ginch gin gdiameter gthat gare gaway gfrom ga gwall gis: g-correct ganswers-1.5
Table gP2902.3.1
Where gthe gdrainage gpiping ghas gbeen groughed-in gfor gfuture gfixtures, ga grough-
in gconnection gfor ga gvent gmust gbe ginstalled ga gminimum gof g_____. g-correct
ganswers-one-half gtimes gthe gdiameter gof gthe gdrain
P3104.6
Grinder gpumps gor ggrinder gejectors gthat greceive gthe gdischarge gof gwater
gclosets gmust ghave ga gminimum gdischarge gopening gof g_____. g-correct
ganswers-1 g1/4 ginches g(32 gmm)
P3007.6
FULL PACK SOLUTIONS
What gis gthe gminimum gsize gof ga gwater gmeter gand gservice gpiping gin ginches
gfor ga gwater gsupply gsystem gof g34 gfixture gunits gwith ga gmaximum gdeveloped
glength gof g200 gfeet. gThe gwater gpressure gof gthe gsystem gis g35 gpsi. g-correct
ganswers-1 g
Table gAP201.1
,What gis gthe gminimum gsized gtrap gthat gcan gbe gused gfor gthe gdrainage gsystem
gof ga gbathtub g(with gor gwithout gshower ghead gand/or gwhirlpool gattachments)? g-
correct ganswers-1.5
Table gP3201.7
A gwater gheater gpan gdrain gmust gextend gfull-size gand gterminate gover ga
gsuitably glocated gindirect gwaste greceptor gor gmust gextend gto gthe gexterior gof
gthe gbuilding gand gterminate gnot gless gthan g_____ ginches gand gnot gmore gthan
g_____ ginches gabove gthe gadjacent gground gsurface. g-correct ganswers-6, g24
P2801.6.2
A glaundry gtray gwaste gline gis gpermitted gto gconnect ginto ga gstandpipe gfor
gautomatic gclothes gwasher gdrain. gThe gstandpipe gmust gextend gnot gless gthan
g_____ gabove gthe gtrap gweir gand gmust gextend gabove gthe gflood glevel grim gof
gthe glaundry gtray. g-correct ganswers-30 ginches g(762 gmm)
P2706.1.2.1
Clothes gclosets, glinen gclosets gand gpantries gnot gexceeding g_____ gin garea,
gwith gthe gsmallest gdimension gnot ggreater gthan g3 gfeet g(915 gmm) gand ghaving
gwall gand gceiling gsurfaces gof ggypsum gboard gwill gnot grequire gfire gsprinklers. g-
correct ganswers-24 gsquare gfeet g(2.2 gm2)
P2904.1.1
If ga gwater gcloset gcan gbe gremoved gto gprovide gcleanout gaccess, gdoes gthat
gfulfill gthe gcleanout grequirement gof gthe gcode? g-correct ganswers-No
P3005.2.3
Appliances gand gequipment gused gfor gheating gwater gor gstoring ghot gwater ghave
gto gbe gprotected gby g_____. g-correct ganswers-pressure-relief gvalve gand
gtemperature-relief gvalve gor ga gcombination gpressure gand gtemperature-relief
gvalve.
P2804.1
Where gthe gfixture gdrains gconnect gat gdifferent glevels, gthe gcommon gvent gmust
gconnect gas ga g_____ gextension gof gthe g_____ gdrain. g-correct ganswers-vertical,
gvertical
P3107.3
,The gminimum gair ggap gdistance gin ginches gfor glavatories gand gother gfixtures
gwith geffective gopening gnot ggreater gthan g1/2 ginch gin gdiameter gthat gare gclose
gto ga gwall gis: g-correct ganswers-1.5
Table gP2902.3.1
In gareas gprone gto gflooding gas gestablished gby gthe gcode, gwater gsupply
gsystems gmust gbe gdesigned gand gconstructed gto gprevent g_____ gof
gfloodwaters. g-correct ganswers-infiltration
P2602.2
When geither ga gpublic gwater-supply gor gsewer gsystem, gor gboth, gare gnot
gavailable, g_____, gan gindividual gwater-supply gor gindividual gsewage-disposal
gsystem, gor gboth, gmust gbe gprovided. g-correct ganswers-or gconnection gthereto
gis gnot gfeasible
P2602.1
_____ ginstalled gin ga gbathroom gare gnot grequired gto gbe ginstalled gwithin gan
genclosure. g-correct ganswers-direct-vent gwater gheaters
M2005.2
For gwater gsupply gsystems gused gpredominantly gfor gflush gtanks ghaving ga
gwater gsupply gfixture gunit gload gof g12, gwhat gis gthe gcomparable gdemand gin
ggallons gper gminute. g-correct ganswers-16.0
Table gP2903.6(1)
Test gequipment, gmaterials gand glabor gmust gbe gfurnished gby gthe g______ g-
correct ganswers-permittee
P2503.3
The gminimum gsize gin ginches gof ga gcombination gwaste gand gvent gpipe
gconnecting gto ga gbuilding gdrain gor gbuilding gsub gdrain gand gserving g31 gd.f.u.
gis g_____. g-correct ganswers-3
Table g3111.3
The goutlet gof ga gwater gheaters gpressure grelief gvalve, gtemperature grelief gvalve
gor gcombination gvalve, gmust gbe gdirectly gconnected gto gthe g_____. g-correct
ganswers-none gof gthe gabove
P2804.6.1
, What gis gthe gminimum gpipe gsupport gspacing gin gfeet, grequired gfor gcopper gor
gcopper galloy gtubing g(1 g1/4 ginch gdiameter gand gsmaller_ ginstalled gin ga
ghorizontal gorientation. g-correct ganswers-6
Table gP2605.1
The gflow gvelocity gof gthe gwater gdistribution gsystem gmust gbe gcontrolled gto
greduce gthe gpossibility gof g_____. g-correct ganswers-water ghammer
P2903.5
A gwet g2 ginch gvent gcan ghandle gventing gfor g_____ gfixture gunit gloads. g-correct
ganswers-4
Table gP3108.3
There gmust gbe gat gleast g_____ ginches gclearance gin gfront gof gthe gwater
gcloset, gbidet gor glavatory gto gany gwall, gfixture gor gdoor. g-correct ganswers-21
P2705.1
Open ghub gwaste greceptors gmust gbe gpermitted gin gthe gform gof ga ghub gor
gpipe gextending gnot gless gthan g_____ ginch(es) gabove ga gwater gimpervious
gfloor, gand gare gnot grequired gto ghave ga gstrainer. g-correct ganswers-1
P2706.1
The gminimum gair ggap gdistance gin ginches gfor gsink, glaundry gtrays, ggooseneck
gback gfaucets gand gother gfixtures gwith geffective gopenings gnot ggreater gthan g3/4
ginch gin gdiameter gthat gare gaway gfrom ga gwall gis: g-correct ganswers-1.5
Table gP2902.3.1
Where gthe gdrainage gpiping ghas gbeen groughed-in gfor gfuture gfixtures, ga grough-
in gconnection gfor ga gvent gmust gbe ginstalled ga gminimum gof g_____. g-correct
ganswers-one-half gtimes gthe gdiameter gof gthe gdrain
P3104.6
Grinder gpumps gor ggrinder gejectors gthat greceive gthe gdischarge gof gwater
gclosets gmust ghave ga gminimum gdischarge gopening gof g_____. g-correct
ganswers-1 g1/4 ginches g(32 gmm)
P3007.6
