CSLB C20 TRADE TOUGHER EXAM QUESTIONS
AND ANSWERS 100% PASS
DuctKsystemsKshouldKbeKinstalledKaccordingKtoK____KStandardsK-KcorrectKanswer-SMACNA
TheKtypeKofKflueKpipeKusedKonKgasK80%KstandardKfurnaceKventingKsystemsKservingKgasKfiredKsystemsK-
KcorrectKanswer-TypeKB-Vent
WhichKtypeKofKgaugeKwouldKyouKuseKforKveryKhighKvacuums?K-KcorrectKanswer-McLeodKtypeKgauge
HowKmanyKBTUsKareKequalKtoKoneKkilowattKhourK-KcorrectKanswer-3,414KBTU
WhenKadjustingKgasKfiredKfurnacesKaboveK2000Kfeet,KtheKBTUKperKhourKinputKshouldKbeKreducedK4%KforK
eachK_____KfeetKaboveKseaKlevel.K-KcorrectKanswer-4%KforKeveryK1,000Kfeet
HowKareKresidentialKfurnaceKblowerKmotorsKclassifiedK-KcorrectKanswer-byKstartingKmethod
WhatKisKtheKequationKforKdeterminingKheatKlossKthroughKaKmaterialK-KcorrectKanswer-
QK=KUKtimesKAKtimesKTD
WhatKisKtheKoverfireKratingKonKaKsmallKdraftKhoodK-KcorrectKanswer-0.02Kinches
whatKisKtheKequationKforKdeterminingKminimumKsizeKairKsupplyKforKaKblowerKtypeKfurnaceK-
KcorrectKanswer-2KdividedKbyK1000KtimesKtheKBTUKofKtheKfurnace
whatKisKtheKequationKforKdeterminingKminimumKsizeKairKsupplyKforKaKgravityKtypeKfurnaceK-
KcorrectKanswer-7KdividedKbyK1000KtimesKtheKBTUKofKtheKgravityKfurnace
theKtypeKofKbubKthatKmeasuresKevaporativeKcoolingK-KcorrectKanswer-wetKbulb
theKheatingKvalueKofKnaturalKgasKisK-KcorrectKanswer-1100KBTUKperKcubicKfoot
AND ANSWERS 100% PASS
DuctKsystemsKshouldKbeKinstalledKaccordingKtoK____KStandardsK-KcorrectKanswer-SMACNA
TheKtypeKofKflueKpipeKusedKonKgasK80%KstandardKfurnaceKventingKsystemsKservingKgasKfiredKsystemsK-
KcorrectKanswer-TypeKB-Vent
WhichKtypeKofKgaugeKwouldKyouKuseKforKveryKhighKvacuums?K-KcorrectKanswer-McLeodKtypeKgauge
HowKmanyKBTUsKareKequalKtoKoneKkilowattKhourK-KcorrectKanswer-3,414KBTU
WhenKadjustingKgasKfiredKfurnacesKaboveK2000Kfeet,KtheKBTUKperKhourKinputKshouldKbeKreducedK4%KforK
eachK_____KfeetKaboveKseaKlevel.K-KcorrectKanswer-4%KforKeveryK1,000Kfeet
HowKareKresidentialKfurnaceKblowerKmotorsKclassifiedK-KcorrectKanswer-byKstartingKmethod
WhatKisKtheKequationKforKdeterminingKheatKlossKthroughKaKmaterialK-KcorrectKanswer-
QK=KUKtimesKAKtimesKTD
WhatKisKtheKoverfireKratingKonKaKsmallKdraftKhoodK-KcorrectKanswer-0.02Kinches
whatKisKtheKequationKforKdeterminingKminimumKsizeKairKsupplyKforKaKblowerKtypeKfurnaceK-
KcorrectKanswer-2KdividedKbyK1000KtimesKtheKBTUKofKtheKfurnace
whatKisKtheKequationKforKdeterminingKminimumKsizeKairKsupplyKforKaKgravityKtypeKfurnaceK-
KcorrectKanswer-7KdividedKbyK1000KtimesKtheKBTUKofKtheKgravityKfurnace
theKtypeKofKbubKthatKmeasuresKevaporativeKcoolingK-KcorrectKanswer-wetKbulb
theKheatingKvalueKofKnaturalKgasKisK-KcorrectKanswer-1100KBTUKperKcubicKfoot