NERC CERTIFICATION TEST EXAM
2025/2026 BANK ACCURATE REAL
EXAM 2 VERSIONS WITH 500
QUESTIONS TESTING VERSIONS AND A
STUDY GUIDE | EXPERTLY VERIFIED
FOR GUARANTEED PASS BEST
GRADED
How many MVAR does a 50 MVAR shunt capacitor bank
provide at 90% of nominal voltage?
A. 35
B. 45
C. 50
D. 40
D. 40
Feedback: As the system voltage decreases, the capacitor
bank MVAR output decreases in proportion to the square
of the voltage.VAR-001 states, "Each Transmission
Operator shall schedule sufficient reactive resources to
regulate voltage levels."- NERC Standard VAR-001-
EPRI Power System Dynamics Tutorial
In a power system, which type of power is necessary for
maintaining voltage within limits and is critical for
1
,support of heavily loaded transmission lines?
A. Apparent Power
B. Reactive Power
C. Solar Power
D. Real Power
B. Reactive Power
Feedback: Reactive Power is the energy stored in magnetic
and electrical fields and is critical in voltage support. The
VAR standards address requirements to ensure TOPs and
2
,GOPs work together to maintain sufficient reactive
reserves on the system.
A transformer rated at 550 MVA has 500 MW and 55
MVAR passing through it. Which of the following is true?
A. The load on the transformer cannot be determined
without knowing the power factor
B. No action is required because the transformer is less
than 10% above its limit
C. The load on the transformer must be reduced because it
is above its limit
D. No action is required because the transformer is
within limits
D. No action is required because the transformer is within
limits
Feedback: This question can be answered by using the
Pythagorean theorem. If you calculate MVA by squaring
MW and MVAR and add them together, then take the
square root, you should find that the transformer has a
little more than 503 MVA flowing through it which is well
within its limit of 550 MVA.
On a radial transmission system a generator has a capacity
of 600 MWs. The Droop characteristic is at 5% and the
generator is currently loaded at 300 MWs. If frequency
suddenly drops to 59.3 Hz, what would be the total
generator output?
3
, A. 600
B. 400
C. 440
D. 350
C. 440
Feedback: 600 MW/3 Hz = 200 MWs/Hz: Frequency
dropped .7 Hz and .7 times 200 = 140 MWs. The generator
would increase 140 MWs => 300 + 140 = 440 MWs.
Balancing Authority ABC is a member of a Reserve
Sharing Group (RSP). At 0605 Balancing Authority ABC
loses a 500 MW generator. It calls on its RSG to replace
the lost generation until it can get more generation, such
as gas turbines on line and loaded. What time must
Balancing Authority ABC stop using RSG power to avoid
having to submit an Arranged Interchange request?
A. 0710
B. 0650
C. 0705
D. 0750
C. 0705
Feedback: Balancing Authority ABC can use imported
power in an emergency for up to 60 minutes beyond the
loss of a major resource without submitting a request for
Arranged Interchange.- NERC Standard INT-010, R1
Examples of reactive resources include generators,
4
2025/2026 BANK ACCURATE REAL
EXAM 2 VERSIONS WITH 500
QUESTIONS TESTING VERSIONS AND A
STUDY GUIDE | EXPERTLY VERIFIED
FOR GUARANTEED PASS BEST
GRADED
How many MVAR does a 50 MVAR shunt capacitor bank
provide at 90% of nominal voltage?
A. 35
B. 45
C. 50
D. 40
D. 40
Feedback: As the system voltage decreases, the capacitor
bank MVAR output decreases in proportion to the square
of the voltage.VAR-001 states, "Each Transmission
Operator shall schedule sufficient reactive resources to
regulate voltage levels."- NERC Standard VAR-001-
EPRI Power System Dynamics Tutorial
In a power system, which type of power is necessary for
maintaining voltage within limits and is critical for
1
,support of heavily loaded transmission lines?
A. Apparent Power
B. Reactive Power
C. Solar Power
D. Real Power
B. Reactive Power
Feedback: Reactive Power is the energy stored in magnetic
and electrical fields and is critical in voltage support. The
VAR standards address requirements to ensure TOPs and
2
,GOPs work together to maintain sufficient reactive
reserves on the system.
A transformer rated at 550 MVA has 500 MW and 55
MVAR passing through it. Which of the following is true?
A. The load on the transformer cannot be determined
without knowing the power factor
B. No action is required because the transformer is less
than 10% above its limit
C. The load on the transformer must be reduced because it
is above its limit
D. No action is required because the transformer is
within limits
D. No action is required because the transformer is within
limits
Feedback: This question can be answered by using the
Pythagorean theorem. If you calculate MVA by squaring
MW and MVAR and add them together, then take the
square root, you should find that the transformer has a
little more than 503 MVA flowing through it which is well
within its limit of 550 MVA.
On a radial transmission system a generator has a capacity
of 600 MWs. The Droop characteristic is at 5% and the
generator is currently loaded at 300 MWs. If frequency
suddenly drops to 59.3 Hz, what would be the total
generator output?
3
, A. 600
B. 400
C. 440
D. 350
C. 440
Feedback: 600 MW/3 Hz = 200 MWs/Hz: Frequency
dropped .7 Hz and .7 times 200 = 140 MWs. The generator
would increase 140 MWs => 300 + 140 = 440 MWs.
Balancing Authority ABC is a member of a Reserve
Sharing Group (RSP). At 0605 Balancing Authority ABC
loses a 500 MW generator. It calls on its RSG to replace
the lost generation until it can get more generation, such
as gas turbines on line and loaded. What time must
Balancing Authority ABC stop using RSG power to avoid
having to submit an Arranged Interchange request?
A. 0710
B. 0650
C. 0705
D. 0750
C. 0705
Feedback: Balancing Authority ABC can use imported
power in an emergency for up to 60 minutes beyond the
loss of a major resource without submitting a request for
Arranged Interchange.- NERC Standard INT-010, R1
Examples of reactive resources include generators,
4
