Epri Practice Test With Correct And
Verified Responces
If ba bgenerator bis bproducing b500 bMW band b200 bMvar, bis bthe bgenerator?
A. bLeading
B. bLagging
C. bUnderexcited
D. bDropping b- bCORRECT✅✅B. bLagging
What bis bthe bIEEE bdevice bnumber bfor ba bdifferential brelay?
A. b87
B. b86
C. b67
D. b50 b- bCORRECT✅✅A. b87
Can ba bsynchronous bmachine bhave ba bnegative btorque bangle? bWhat bdoes
this bmean?
A. bYes b/ bthe bmachine bis babsorbing breactive bpower
B. bNo b/ bthe bmachine bis babsorbing bactive bpower
C. bNo b/ bthe bmachine bis babsorbing breactive bpower
D. bYes b/ bthe bmachine bis babsorbing bactive bpower b- bCORRECT✅✅D. bYes b/ bthe
bmachine bis babsorbing bactive bpower
A bcustomer bload bis bfed bat b120 bvolts. bThe bcustomer bvoltage bis bdoubled
while bthe bload bmagnitude bstays bthe bsame. bWhat beffect bdoes bthis bhave bon
the bpower blosses?
A. bDoubles bthe blosses
B. bHalves bthe blosses
C. bIncreases bthe blosses bby ba bfactor bof bfour
D. bDecreases bthe blosses bby ba bfactor bof bfour b- bCORRECT✅✅D. bDecreases bthe
blosses bby ba bfactor bof bfour
In ba bDC bcircuit, ba b100 bvolt bbattery bis bconnected bto bboth bsides bof ba b2 bohm
resistor. bWhat bis bthe bcurrent bthrough bthe bresistor band bthe bpower busage bof
the bresistor?
A. b50 bamps b/ b5000 bwatts
B. b40 bamps b/ b80 bwatts
C. b50 bamps b/ b100 bwatts
D. b40 bamps b/ b3200 bwatts b- bCORRECT✅✅A. b50 bamps b/ b5000 bwatts
The bactual bvoltage bis b362 bkV bon ba b345 bkV bbus. bWhat bis bthe bp.u. bvoltage?
A. b1.0
,B. b1.05
C. b1.5
D. b.95 b- bCORRECT✅✅B. b1.05
A bload bhas ba bpower bfactor bof b0.9 blagging. bIf bthe bload bdraws b100 bMVA,
what bis bthe bMW bdraw?
A. b100
B. b90
C. b111
D. b44 b- bCORRECT✅✅B. b90
Which bof bthe bfollowing bis bNOT ba bsynchronizing bvariable?
A. bPhase bangle
B. bFrequency bdifference
C. bVoltage bmagnitude bdifference
D. bMW bflow bdifferential b- bCORRECT✅✅D. bMW bflow bdifferential
In ba btypical bmulti-stage bsteam bturbine, bthe bgovernor bcontrol bvalves bcontrol
the bsteam bentry bto bthe:
A. bhigh bpressure bturbine
B. bintermediate bpressure bturbine
C. blow bpressure bturbine
D. bcrossover b- bCORRECT✅✅A. bhigh bpressure bturbine
The bhigh bside bof ba bdelta-wye bconnected btransformer bis bconnected bto ba
power bsystem bwith b199 bkV bL-G bhigh bside bvoltage. bWhat bis bthe bvoltage
across bthe bwinding bof bthe bdelta btransformer?
A. b199 bkV
B. b230 bkV
C. b345 bkV
D. b500 bkV b- bCORRECT✅✅C. b345 bkV
Thermal blimits bare bthe bdirect bresult bof?
A. bHigh btorque band bpower bangles
B. bThe bthermal bcapability bof bsystem bequipment
C. bA breactive bpower bdeficiency
D. bAll bof bthe babove b- bCORRECT✅✅B. bThe bthermal bcapability bof bsystem
bequipment
Reactive bpower bflow bis binfluenced bmore bby bsystem bpower band btorque
angles bthan breactive bpower.
A. bTrue
B. bFalse b- bCORRECT✅✅B. bFalse
At bwhat bline bpower bangle bdoes bthe bMW btransfer bacross ba btransmission bpath
equal b½ bof bthe bpath's bPMAX?
, A. b15 bdegrees
B. b20 bdegrees
C. b30 bdegrees
D. b45 bdegrees b- bCORRECT✅✅C. b30 bdegrees
A btransmission bline bis brated bat b1000 bMVA. bThe bpower bflow bis bcurrently b0
MW band b1001 bMvar. bIs bthe btransmission bline boverloaded?
A. bYes
B. bNo
C. bImpossible bto bdetermine
D. bThe bline bhas bno bload b- bCORRECT✅✅A. bYes
The bTTC blimit bhas bbeen bdetermine bto bbe b1000 bMW bfrom beast bto bwest bfor ba
particular btransmission bpath. bThe btransmission bpath boperator bsells b500
MW bof bthis bTTC. bWhat bis bthe bpath's bATC?
A. b1000 bMW
B. b1500 bMW
C. b0 bMW
D. b500 bMW b- bCORRECT✅✅D. b500 bMW
A bdistribution bline bis brated bat b50 bMVA. bThe bline's bpower bflow bis bcurrently
50 bMW band b-50 bMvar. bThis bdistribution bline bis boverloaded.
A. bTrue
B. bFalse b- bCORRECT✅✅A. bTrue
Angle bstability blimits bare bthe bresult bof?
A. bHigh btorque band bpower bangles
B. bThe bthermal bcapability bof bsystem bequipment
C. bA breactive bpower bdeficiency
D. bAll bof bthe babove b- bCORRECT✅✅A. bHigh btorque band bpower bangles
If bthe bresistance bis bignored, bthe bmaximum btheoretical bMW bflow bacross ba
transmission bline bwill boccur bat ba bpower bangle bof:
A. b0 bdegrees
B. b45 bdegrees
C. b90 bdegrees
D. b180 bdegrees b- bCORRECT✅✅C. b90 bdegrees
If bthe bresistance bis bignored, bthe bmaximum btheoretical bMvar bflow bacross ba
transmission bline bwill boccur bat ba bpower bangle bof:
A. b0 bdegrees
B. b45 bdegrees
C. b90 bdegrees
D. b180 bdegrees b- bCORRECT✅✅D. b180 bdegrees
200 bMW bis bscheduled bto bflow bfrom bBus b"X" bto bBus b"Y". bTransmission
Verified Responces
If ba bgenerator bis bproducing b500 bMW band b200 bMvar, bis bthe bgenerator?
A. bLeading
B. bLagging
C. bUnderexcited
D. bDropping b- bCORRECT✅✅B. bLagging
What bis bthe bIEEE bdevice bnumber bfor ba bdifferential brelay?
A. b87
B. b86
C. b67
D. b50 b- bCORRECT✅✅A. b87
Can ba bsynchronous bmachine bhave ba bnegative btorque bangle? bWhat bdoes
this bmean?
A. bYes b/ bthe bmachine bis babsorbing breactive bpower
B. bNo b/ bthe bmachine bis babsorbing bactive bpower
C. bNo b/ bthe bmachine bis babsorbing breactive bpower
D. bYes b/ bthe bmachine bis babsorbing bactive bpower b- bCORRECT✅✅D. bYes b/ bthe
bmachine bis babsorbing bactive bpower
A bcustomer bload bis bfed bat b120 bvolts. bThe bcustomer bvoltage bis bdoubled
while bthe bload bmagnitude bstays bthe bsame. bWhat beffect bdoes bthis bhave bon
the bpower blosses?
A. bDoubles bthe blosses
B. bHalves bthe blosses
C. bIncreases bthe blosses bby ba bfactor bof bfour
D. bDecreases bthe blosses bby ba bfactor bof bfour b- bCORRECT✅✅D. bDecreases bthe
blosses bby ba bfactor bof bfour
In ba bDC bcircuit, ba b100 bvolt bbattery bis bconnected bto bboth bsides bof ba b2 bohm
resistor. bWhat bis bthe bcurrent bthrough bthe bresistor band bthe bpower busage bof
the bresistor?
A. b50 bamps b/ b5000 bwatts
B. b40 bamps b/ b80 bwatts
C. b50 bamps b/ b100 bwatts
D. b40 bamps b/ b3200 bwatts b- bCORRECT✅✅A. b50 bamps b/ b5000 bwatts
The bactual bvoltage bis b362 bkV bon ba b345 bkV bbus. bWhat bis bthe bp.u. bvoltage?
A. b1.0
,B. b1.05
C. b1.5
D. b.95 b- bCORRECT✅✅B. b1.05
A bload bhas ba bpower bfactor bof b0.9 blagging. bIf bthe bload bdraws b100 bMVA,
what bis bthe bMW bdraw?
A. b100
B. b90
C. b111
D. b44 b- bCORRECT✅✅B. b90
Which bof bthe bfollowing bis bNOT ba bsynchronizing bvariable?
A. bPhase bangle
B. bFrequency bdifference
C. bVoltage bmagnitude bdifference
D. bMW bflow bdifferential b- bCORRECT✅✅D. bMW bflow bdifferential
In ba btypical bmulti-stage bsteam bturbine, bthe bgovernor bcontrol bvalves bcontrol
the bsteam bentry bto bthe:
A. bhigh bpressure bturbine
B. bintermediate bpressure bturbine
C. blow bpressure bturbine
D. bcrossover b- bCORRECT✅✅A. bhigh bpressure bturbine
The bhigh bside bof ba bdelta-wye bconnected btransformer bis bconnected bto ba
power bsystem bwith b199 bkV bL-G bhigh bside bvoltage. bWhat bis bthe bvoltage
across bthe bwinding bof bthe bdelta btransformer?
A. b199 bkV
B. b230 bkV
C. b345 bkV
D. b500 bkV b- bCORRECT✅✅C. b345 bkV
Thermal blimits bare bthe bdirect bresult bof?
A. bHigh btorque band bpower bangles
B. bThe bthermal bcapability bof bsystem bequipment
C. bA breactive bpower bdeficiency
D. bAll bof bthe babove b- bCORRECT✅✅B. bThe bthermal bcapability bof bsystem
bequipment
Reactive bpower bflow bis binfluenced bmore bby bsystem bpower band btorque
angles bthan breactive bpower.
A. bTrue
B. bFalse b- bCORRECT✅✅B. bFalse
At bwhat bline bpower bangle bdoes bthe bMW btransfer bacross ba btransmission bpath
equal b½ bof bthe bpath's bPMAX?
, A. b15 bdegrees
B. b20 bdegrees
C. b30 bdegrees
D. b45 bdegrees b- bCORRECT✅✅C. b30 bdegrees
A btransmission bline bis brated bat b1000 bMVA. bThe bpower bflow bis bcurrently b0
MW band b1001 bMvar. bIs bthe btransmission bline boverloaded?
A. bYes
B. bNo
C. bImpossible bto bdetermine
D. bThe bline bhas bno bload b- bCORRECT✅✅A. bYes
The bTTC blimit bhas bbeen bdetermine bto bbe b1000 bMW bfrom beast bto bwest bfor ba
particular btransmission bpath. bThe btransmission bpath boperator bsells b500
MW bof bthis bTTC. bWhat bis bthe bpath's bATC?
A. b1000 bMW
B. b1500 bMW
C. b0 bMW
D. b500 bMW b- bCORRECT✅✅D. b500 bMW
A bdistribution bline bis brated bat b50 bMVA. bThe bline's bpower bflow bis bcurrently
50 bMW band b-50 bMvar. bThis bdistribution bline bis boverloaded.
A. bTrue
B. bFalse b- bCORRECT✅✅A. bTrue
Angle bstability blimits bare bthe bresult bof?
A. bHigh btorque band bpower bangles
B. bThe bthermal bcapability bof bsystem bequipment
C. bA breactive bpower bdeficiency
D. bAll bof bthe babove b- bCORRECT✅✅A. bHigh btorque band bpower bangles
If bthe bresistance bis bignored, bthe bmaximum btheoretical bMW bflow bacross ba
transmission bline bwill boccur bat ba bpower bangle bof:
A. b0 bdegrees
B. b45 bdegrees
C. b90 bdegrees
D. b180 bdegrees b- bCORRECT✅✅C. b90 bdegrees
If bthe bresistance bis bignored, bthe bmaximum btheoretical bMvar bflow bacross ba
transmission bline bwill boccur bat ba bpower bangle bof:
A. b0 bdegrees
B. b45 bdegrees
C. b90 bdegrees
D. b180 bdegrees b- bCORRECT✅✅D. b180 bdegrees
200 bMW bis bscheduled bto bflow bfrom bBus b"X" bto bBus b"Y". bTransmission
