Combo with NATE Heat Pump Exam and 1
g g g g g g g g
other Questions With Complete Solutions
g g g g
Already Passed!!!
g g
Charginggagheatgpumpgwithgrefrigerantgisgbestgaccomplishedgingthe mode.
A:gHeatinggmode
g
B:gCoolinggmode
g
C:gDefrostgmode
g
D:gEmergencygheatinggmodeg-gcorrectganswer...✔✔B:gCoolinggmode
g
Heatgpumpsgcangprovidegbothgheatinggingthegwintergandgcoolinggingthegsummer.gIngwhichgm
odegisgthegheatgpumpgmoregefficient?
A:gHeatinggmode
g
B:gCoolinggmode
g
C:gDefrostgmode
g
D:gEmergencygheatinggmodeg-gcorrectganswer...✔✔A:gHeatinggmode
g
Whichgofgthegfollowinggcomponentsgisgexclusivegtogthegheatgpump?
A:gCondenser
g
B:gOilgseparator
g
C:gReversinggvalve
g
D:gAccumulatorg-gcorrectganswer...✔✔C:gReversinggvalve
g
Whichgofgthegfollowinggairflowgratesgisgthegmostgreasonablegforgagheatgpumpgsystemgo
peratinggingthegheatinggcycle?
A:g200gcfmgpergton
g
B:g300gcfmgpergton
g
C:g400gcfmgpergton
g
AGRADESOLUTIONS
,D:g450gcfmgpergtong-gcorrectganswer...✔✔D:g450gcfmgpergton
g
Duringgthegheatgpump'sgcoolinggcycle,gthegoutdoorgcoilgisgutilizedgasga
whilegthegindoorgcoilgisgutilizedgasga .
A:gCondenser,gevaporator
g
B:gEvaporator,gcondenser
g
C:gCompressor,gaccumulator
g
D:gAccumulator,gcondenserg-gcorrectganswer...✔✔A:gCondenser,gevaporator
g
Heatgisgpresentgingwintergoutdoorgairguntilgthegoutsidegairgambientgtemperaturegreachesg
aglowgtemperaturegof:
A:g0gdegreesgF
g
B:g32gdegreesgF
g
C:g273gdegreesgF
g
D:g-459gdegreesgFg-gcorrectganswer...✔✔D:g-459gdegreesgF
g
Technicallygthisgisgtrue,gbutgnotgpractical.gAgheatgpumpgisgdoingggoodgtogcontinuegtogworkgb
elowg10gdeggF.
Thegheatgpumpgutilizes:
A:gTwogfilter-driersgwithgcheckgvalves
g
B:gOnegbi-flowgfilter-drier
g
C:gAgsinglegmono-flowgfilter-driergingthegliquidgline
g
gD:gSomegusegthegbi-flowgfilter-driergandgothersgusegtwogfilter-driersgwithgcheckgvalvesg-
gcorrectganswer...✔✔D:gSomegusegthegbi-flow-gfilter-driergandgothersgusegtwogfilter-
driersgwithgcheckgvalves
Thegcorrectgwaygtogsizegagheatgpumpgisgtogperformgbothgheatinggandgcoolinggloadgcalc
ulationsgandgselectgthegheatgpumpgsizegby:
A:gAddinggthegheatinggloadgandgcoolinggloads
g
B:gSubtractinggthegsmallergloadgfromgtheglargergload
g
AGRADESOLUTIONS
,C:gUsinggthegheatinggloadgtogsizegthegsystem
g
D:gUsinggthegcoolinggloadgtogsizegthegsystemg-
g
correctganswer...✔✔D:gUsinggthegcoolinggloadgtogsizegthegsystem
g
Auxiliarygelectricgheatgisgnecessarygbecause:
A:gItgprovidesgheatgforgtheghomegduringgdefrosts
g
B:gItgprovidesgheatgforgtheghomegingthegeventgofgagheatgpumpgfailure
g
C:gItgprovidesgheatgforgtheghomegifgthegheatgpumpgisgunablegtogmeetgthegdemandgforgheat
g
D:gAllgofgthegaboveg-gcorrectganswer...✔✔D:gAllgofgthegabove
g
Readinggagvoltagegacrossgthegcontactsgofgthegoutdoorgthermostatgmeans:
A:gThegthermostatgcontactsgaregclosed
g
B:gThegthermostatgcontactsgaregopen
g
C:gThegthermostatgcontactsgaregstuck
g
gD:gThegthermostatgcontactsgaregworkinggcorrectlyg-
gcorrectganswer...✔✔B:gThegthermostatgcontactsgaregopen
Whichgofgthegfollowinggisgnotgagtypegofgheatgpump?
A:gGroundgtogair
g
B:gAirgtogair
g
C:gWatergtogair
g
D:gDirectgcoupledg-gcorrectganswer...✔✔D:gDirectgcoupled
g
Thegcoefficientgofgperformancegisgdeterminedgby:
A:gDividinggthegoutputgbtuhgbygtheginputgbtuh
g
B:gDividinggtheginputgbtuhgbygthegoutputgbtuh
g
C:gMultiplyinggtheginputgbygthegoutput
g
AGRADESOLUTIONS
, gD:gSubtractinggthegoutputgfromgtheginputg-
gcorrectganswer...✔✔B:gDividinggtheginputgbtuhgbygthegoutputgbtuh
Theg"balancegpoint"gofgagheatgpumpgis:
gA:gTheglowestgtemperaturegatgwhichgthegheatgpumpgcangmeetgthegheatinggrequiremen
tgforgthegstructure
B:gTheglowestgtemperaturegatgwhichgthegheatgpumpgcangoperate
g
C:gThegtemperaturegatgwhichgthegheatgpumpghasgtheghighestgefficiency
g
gD:gThegpointgatgwhichgthegheatinggandgcoolinggloadsgmeetg-
gcorrectganswer...✔✔A:gTheglowestgtemperaturegatgwhichgthegheatgpumpgcangmeetgtheghe
atinggrequirementgforgthegstructure
Whichgofgthegfollowinggisgangincorrectgtermgforgthegsolenoidgvalvegthatgswitchesgthegheat
gpumpgbetweengthegheatinggandgcoolinggmodes?
A:gChangeovergvalve
g
B:gReversinggvalve
g
C:gFour-waygvalve
g
D:gDischargegoperatorgvalveg-gcorrectganswer...✔✔D:gDischargegoperatorgvalve
g
Thegbestglocationgforgthegoutdoorgsectiongofgangairgtogairgheatgpumpgis:
A:gWheregitggetsgthegwintergsun
g
B:gWheregitgisgshelteredgfromgthegsun'sgradiation
g
C:gWheregitgnevergsnows
g
D:gUndergthegsheltergofgagporchg-gcorrectganswer...✔✔A:gWheregitggetsgthegwintergsun
g
Whatgmayghappengifgthegbodygofgagreversinggvalvegisgslightlygdented?
A:gNothing,gasgtheygaregmadegtogbegverygdurable
g
B:gTheginternalgslidegmaygstick
g
C:gThegvalvegmaygmakegnoisesgfromgtheggasgtryinggtogpassgthroughgpartiallygopengports
g
D:gBothgbgandgcgaregcorrectg-gcorrectganswer...✔✔D:gBothgbgandgcgaregcorrect
g
AGRADESOLUTIONS
g g g g g g g g
other Questions With Complete Solutions
g g g g
Already Passed!!!
g g
Charginggagheatgpumpgwithgrefrigerantgisgbestgaccomplishedgingthe mode.
A:gHeatinggmode
g
B:gCoolinggmode
g
C:gDefrostgmode
g
D:gEmergencygheatinggmodeg-gcorrectganswer...✔✔B:gCoolinggmode
g
Heatgpumpsgcangprovidegbothgheatinggingthegwintergandgcoolinggingthegsummer.gIngwhichgm
odegisgthegheatgpumpgmoregefficient?
A:gHeatinggmode
g
B:gCoolinggmode
g
C:gDefrostgmode
g
D:gEmergencygheatinggmodeg-gcorrectganswer...✔✔A:gHeatinggmode
g
Whichgofgthegfollowinggcomponentsgisgexclusivegtogthegheatgpump?
A:gCondenser
g
B:gOilgseparator
g
C:gReversinggvalve
g
D:gAccumulatorg-gcorrectganswer...✔✔C:gReversinggvalve
g
Whichgofgthegfollowinggairflowgratesgisgthegmostgreasonablegforgagheatgpumpgsystemgo
peratinggingthegheatinggcycle?
A:g200gcfmgpergton
g
B:g300gcfmgpergton
g
C:g400gcfmgpergton
g
AGRADESOLUTIONS
,D:g450gcfmgpergtong-gcorrectganswer...✔✔D:g450gcfmgpergton
g
Duringgthegheatgpump'sgcoolinggcycle,gthegoutdoorgcoilgisgutilizedgasga
whilegthegindoorgcoilgisgutilizedgasga .
A:gCondenser,gevaporator
g
B:gEvaporator,gcondenser
g
C:gCompressor,gaccumulator
g
D:gAccumulator,gcondenserg-gcorrectganswer...✔✔A:gCondenser,gevaporator
g
Heatgisgpresentgingwintergoutdoorgairguntilgthegoutsidegairgambientgtemperaturegreachesg
aglowgtemperaturegof:
A:g0gdegreesgF
g
B:g32gdegreesgF
g
C:g273gdegreesgF
g
D:g-459gdegreesgFg-gcorrectganswer...✔✔D:g-459gdegreesgF
g
Technicallygthisgisgtrue,gbutgnotgpractical.gAgheatgpumpgisgdoingggoodgtogcontinuegtogworkgb
elowg10gdeggF.
Thegheatgpumpgutilizes:
A:gTwogfilter-driersgwithgcheckgvalves
g
B:gOnegbi-flowgfilter-drier
g
C:gAgsinglegmono-flowgfilter-driergingthegliquidgline
g
gD:gSomegusegthegbi-flowgfilter-driergandgothersgusegtwogfilter-driersgwithgcheckgvalvesg-
gcorrectganswer...✔✔D:gSomegusegthegbi-flow-gfilter-driergandgothersgusegtwogfilter-
driersgwithgcheckgvalves
Thegcorrectgwaygtogsizegagheatgpumpgisgtogperformgbothgheatinggandgcoolinggloadgcalc
ulationsgandgselectgthegheatgpumpgsizegby:
A:gAddinggthegheatinggloadgandgcoolinggloads
g
B:gSubtractinggthegsmallergloadgfromgtheglargergload
g
AGRADESOLUTIONS
,C:gUsinggthegheatinggloadgtogsizegthegsystem
g
D:gUsinggthegcoolinggloadgtogsizegthegsystemg-
g
correctganswer...✔✔D:gUsinggthegcoolinggloadgtogsizegthegsystem
g
Auxiliarygelectricgheatgisgnecessarygbecause:
A:gItgprovidesgheatgforgtheghomegduringgdefrosts
g
B:gItgprovidesgheatgforgtheghomegingthegeventgofgagheatgpumpgfailure
g
C:gItgprovidesgheatgforgtheghomegifgthegheatgpumpgisgunablegtogmeetgthegdemandgforgheat
g
D:gAllgofgthegaboveg-gcorrectganswer...✔✔D:gAllgofgthegabove
g
Readinggagvoltagegacrossgthegcontactsgofgthegoutdoorgthermostatgmeans:
A:gThegthermostatgcontactsgaregclosed
g
B:gThegthermostatgcontactsgaregopen
g
C:gThegthermostatgcontactsgaregstuck
g
gD:gThegthermostatgcontactsgaregworkinggcorrectlyg-
gcorrectganswer...✔✔B:gThegthermostatgcontactsgaregopen
Whichgofgthegfollowinggisgnotgagtypegofgheatgpump?
A:gGroundgtogair
g
B:gAirgtogair
g
C:gWatergtogair
g
D:gDirectgcoupledg-gcorrectganswer...✔✔D:gDirectgcoupled
g
Thegcoefficientgofgperformancegisgdeterminedgby:
A:gDividinggthegoutputgbtuhgbygtheginputgbtuh
g
B:gDividinggtheginputgbtuhgbygthegoutputgbtuh
g
C:gMultiplyinggtheginputgbygthegoutput
g
AGRADESOLUTIONS
, gD:gSubtractinggthegoutputgfromgtheginputg-
gcorrectganswer...✔✔B:gDividinggtheginputgbtuhgbygthegoutputgbtuh
Theg"balancegpoint"gofgagheatgpumpgis:
gA:gTheglowestgtemperaturegatgwhichgthegheatgpumpgcangmeetgthegheatinggrequiremen
tgforgthegstructure
B:gTheglowestgtemperaturegatgwhichgthegheatgpumpgcangoperate
g
C:gThegtemperaturegatgwhichgthegheatgpumpghasgtheghighestgefficiency
g
gD:gThegpointgatgwhichgthegheatinggandgcoolinggloadsgmeetg-
gcorrectganswer...✔✔A:gTheglowestgtemperaturegatgwhichgthegheatgpumpgcangmeetgtheghe
atinggrequirementgforgthegstructure
Whichgofgthegfollowinggisgangincorrectgtermgforgthegsolenoidgvalvegthatgswitchesgthegheat
gpumpgbetweengthegheatinggandgcoolinggmodes?
A:gChangeovergvalve
g
B:gReversinggvalve
g
C:gFour-waygvalve
g
D:gDischargegoperatorgvalveg-gcorrectganswer...✔✔D:gDischargegoperatorgvalve
g
Thegbestglocationgforgthegoutdoorgsectiongofgangairgtogairgheatgpumpgis:
A:gWheregitggetsgthegwintergsun
g
B:gWheregitgisgshelteredgfromgthegsun'sgradiation
g
C:gWheregitgnevergsnows
g
D:gUndergthegsheltergofgagporchg-gcorrectganswer...✔✔A:gWheregitggetsgthegwintergsun
g
Whatgmayghappengifgthegbodygofgagreversinggvalvegisgslightlygdented?
A:gNothing,gasgtheygaregmadegtogbegverygdurable
g
B:gTheginternalgslidegmaygstick
g
C:gThegvalvegmaygmakegnoisesgfromgtheggasgtryinggtogpassgthroughgpartiallygopengports
g
D:gBothgbgandgcgaregcorrectg-gcorrectganswer...✔✔D:gBothgbgandgcgaregcorrect
g
AGRADESOLUTIONS
