NERC CERTIFICATION EXAM QUESTION BANK 2025
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| COMPLETE TESTING ACCURATE REAL EXAM QUES
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TIONS WITH DETAILED VERIFIED ANSWERS | ALREA
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DY GRADED A+ | GUARANTEED EXPERT PASS | ALL L
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ATEST VERSION g
Q1: When current flow increases in the power system, losses in the system will incre
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ase based on which of the following relationships?
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A) Current times resistance squared
g g g
B) Current times impedance
g g
C) Current squared times resistance
g g g
D) Current squared times impedance
g g g
C) Current squared times resistance
g g g
Q2: How do you increase the MVAR output of a generator?
g g g g g g g g g g
A) Increase the DC current to the field windings
g g g g g g g
B) Decrease the DC current to the field windings
g g g g g g g
C) Increase the input to the prime mover
g g g g g g
D) Decrease the input to the prime mover
g g g g g g
A) Increase the DC current to the field windings
g g g g g g g
,Q3: A capacitor bank needs to be outaged for maintenance. When would be the mo
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st beneficial time to schedule a capacitor bank outage?
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A) During outage of other reactive sources in the area
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B) During summer time
g g
C) During projected peak loading
g g g
D) During projected light loading
g g g
D) During projected light loading
g g g
Q4: Which MVAR resource device would you normally use first?
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A) Inductive cancelationsg
B) Shunt reactors
g
C) Shunt capacitors
g
D) Generator MVAR reserves g g
C) Shunt capacitors
g
Q5: Why would a Voltage reduction be implemented?
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A) Reducing load on the transmission system
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B) Increasing current on the transmission system
g g g g g
C) Increasing load on the distribution system
g g g g g
D) Reducing load/demand on the distribution system
g g g g g
D) Reducing load/demand on the distribution system
g g g g g
,Q6: A heavily loaded transmission line will exhibit which characteristic?
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A) Surge Impedance Loading and will be VAR neutral
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B) Capacitive properties and produce VARg g g g
C) Inductive properties and absorb VAR
g g g g
D) Increase impedance will keep the line neutral
g g g g g g
C) Inductive properties and absorb VAR
g g g g g
Q7: Which corrective action should a Transmission Operator take to prevent voltage
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collapse when reactive resources are insufficient?
g g g g g g
A) Closing in reactors
g g
B) Switching out transmission g g
C) Shedding load g
D) Exceeding established limits g g
C) Shedding load
g g
Q8: Reactive reserve response during a disturbance is best obtained from which dev
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ice?
A) Synchronous condensers g
B) Shunt Capacitors
g
C) Generators with the AVR on manual g g g g g
D) Series Capacitors
g
A) Synchronous condensers g
, Q9: How many MVARs does a 230 kV, 50 MVAR capacitor bank provide when the vol
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tage is 207 kV?
g g g
A) 50 MVARs g
B) 45 MVARs g
C) 40 MVARs g
D) 35 MVARs g
C) 40 MVARs g
Ql0: Voltage response to power flow is a study that is represented by which of the fo
g g g g g g g g g g g g g g g g
llowing?
A) D Curve g
B) P-V Curve g
C) Ferranti Curve g
D) VRS Curve g
B) P-V Curve g
Q11: Two adjacent lines exist in a Balancing Area that are the same length and hav
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e the same ratings. One line is overhead and the other is underground. How do the
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se two lines respond as load picks up through the day?
g g g g g g g g g g
A) The overhead line will carry more of the load increase
g g g g g g g g g
B) The underground line will carry more of the load increase
g g g g g g g g g
C) The load increase will be distributed evenly over the two lines
g g g g g g g g g g
D) The line with the higher impedance will carry more of the load
g g g g g g g g g g g
g g g g g
| COMPLETE TESTING ACCURATE REAL EXAM QUES
g g g g g g
TIONS WITH DETAILED VERIFIED ANSWERS | ALREA
g g g g g g
DY GRADED A+ | GUARANTEED EXPERT PASS | ALL L
g g g g g g g g g
ATEST VERSION g
Q1: When current flow increases in the power system, losses in the system will incre
g g g g g g g g g g g g g g
ase based on which of the following relationships?
g g g g g g g
A) Current times resistance squared
g g g
B) Current times impedance
g g
C) Current squared times resistance
g g g
D) Current squared times impedance
g g g
C) Current squared times resistance
g g g
Q2: How do you increase the MVAR output of a generator?
g g g g g g g g g g
A) Increase the DC current to the field windings
g g g g g g g
B) Decrease the DC current to the field windings
g g g g g g g
C) Increase the input to the prime mover
g g g g g g
D) Decrease the input to the prime mover
g g g g g g
A) Increase the DC current to the field windings
g g g g g g g
,Q3: A capacitor bank needs to be outaged for maintenance. When would be the mo
g g g g g g g g g g g g g g
st beneficial time to schedule a capacitor bank outage?
g g g g g g g g
A) During outage of other reactive sources in the area
g g g g g g g g
B) During summer time
g g
C) During projected peak loading
g g g
D) During projected light loading
g g g
D) During projected light loading
g g g
Q4: Which MVAR resource device would you normally use first?
g g g g g g g g g
A) Inductive cancelationsg
B) Shunt reactors
g
C) Shunt capacitors
g
D) Generator MVAR reserves g g
C) Shunt capacitors
g
Q5: Why would a Voltage reduction be implemented?
g g g g g g g
A) Reducing load on the transmission system
g g g g g
B) Increasing current on the transmission system
g g g g g
C) Increasing load on the distribution system
g g g g g
D) Reducing load/demand on the distribution system
g g g g g
D) Reducing load/demand on the distribution system
g g g g g
,Q6: A heavily loaded transmission line will exhibit which characteristic?
g g g g g g g g g
A) Surge Impedance Loading and will be VAR neutral
g g g g g g g
B) Capacitive properties and produce VARg g g g
C) Inductive properties and absorb VAR
g g g g
D) Increase impedance will keep the line neutral
g g g g g g
C) Inductive properties and absorb VAR
g g g g g
Q7: Which corrective action should a Transmission Operator take to prevent voltage
g g g g g g g g g g g
collapse when reactive resources are insufficient?
g g g g g g
A) Closing in reactors
g g
B) Switching out transmission g g
C) Shedding load g
D) Exceeding established limits g g
C) Shedding load
g g
Q8: Reactive reserve response during a disturbance is best obtained from which dev
g g g g g g g g g g g g
ice?
A) Synchronous condensers g
B) Shunt Capacitors
g
C) Generators with the AVR on manual g g g g g
D) Series Capacitors
g
A) Synchronous condensers g
, Q9: How many MVARs does a 230 kV, 50 MVAR capacitor bank provide when the vol
g g g g g g g g g g g g g g g
tage is 207 kV?
g g g
A) 50 MVARs g
B) 45 MVARs g
C) 40 MVARs g
D) 35 MVARs g
C) 40 MVARs g
Ql0: Voltage response to power flow is a study that is represented by which of the fo
g g g g g g g g g g g g g g g g
llowing?
A) D Curve g
B) P-V Curve g
C) Ferranti Curve g
D) VRS Curve g
B) P-V Curve g
Q11: Two adjacent lines exist in a Balancing Area that are the same length and hav
g g g g g g g g g g g g g g g
e the same ratings. One line is overhead and the other is underground. How do the
g g g g g g g g g g g g g g g
se two lines respond as load picks up through the day?
g g g g g g g g g g
A) The overhead line will carry more of the load increase
g g g g g g g g g
B) The underground line will carry more of the load increase
g g g g g g g g g
C) The load increase will be distributed evenly over the two lines
g g g g g g g g g g
D) The line with the higher impedance will carry more of the load
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