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NERC RC Exam Prep Questions and
Correct Answers/ Latest Update / Already
Graded
When does the Contingency Reserve Restoration Period begin?
A. At the top of the hour after the Reportable Disturbance
B. At the start of the Reportable Disturbance
C. At the end of the Disturbance Recovery Period
D. When all Contingency Reserve has been exhausted
Ans: C. At the end of the Disturbance Recovery Period
Which of the following terms is defined as the scan rate values of a
Balancing Authority's ACE measured in MW, which includes the
difference between the Balancing Authority's Net Interchange Actual
and its Net Interchange Scheduled, plus its Frequency Bias obligation,
plus any known meter error?
A. Automatic Time Error
B. Reporting ACE
C. ACE Control Error
D. Reserve Sharing Group Reporting
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Ans: B. Reporting ACE
Which of the following terms applies to the Western Interconnection
only, and the addition of a component to the ACE equation that
modifies the control point for the purpose of continuously paying back
Primary Inadvertent Interchange to correct accumulated time error?
A. Reporting ACE
B. Automatic Time Error Correction
C. Reserve Sharing Group Reporting ACE
D. Regulation Reserve Sharing Group
Ans: B. Automatic Time Error Correction
You are a Balancing Authority Operator. A neighboring Balancing
Authority in the Interconnection suddenly has a 500 MW generator trip
due to a generator ground. What part of the ACE equation, ACE = (NIA-
NIS) - 10B (FA-FS) - IME, allows you and other Balancing Authorities in
the Interconnection to help stabilize the Interconnection frequency
error?
A. (FA- FS) - IME
B. NIA - NIS
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C. 10B (FA-FS)
D. 4 IME
Ans: C. 10B (FA-FS)
Balancing Authority A is scheduled to import a net 200 MW and is
actually importing a net 150 MW. The Bias Setting is -100 MW/.1 HZ
and Actual Frequency is 59.95 Hz. What is Balancing Authority A's ACE
reading?
A. +100 MW
B. -100 MW
C. 0 MW
D. -55 MW
Ans: C. 0 MW
Which of the following elements is NOT included in the ACE equations
frequency component?
A. Actual Frequency (FA)
B. Scheduled Frequency (FS)
C. Frequency Bias Setting (B)
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D. Meter Error (IME)
Ans: D. Meter Error (IME)
A Balancing Authority is slightly undergenerating its Actual System
Frequency (FA) is 60.03 Hz. What is the result of the Balancing
Authority's action?
A. The Balancing Authority is helping the Interconnection Frequency.
B. The Balancing Authority is in CPS1 violation.
C. The Balancing Authority is hurting the Interconnection Frequency.
D. The Balancing Authority is in BAAL violation
Ans: A. The Balancing Authority is helping the Interconnection
Frequency
Which statement best describes the CPS1 requirement?
A. ACE must follow changes in load and schedule within a bandwidth
called L10.
B. The Responsible Entity must operate so its CPS1 is greater than or
equal to 100% for the preceding 12-month period.
All rights reserved © 2025/ 2026 |
NERC RC Exam Prep Questions and
Correct Answers/ Latest Update / Already
Graded
When does the Contingency Reserve Restoration Period begin?
A. At the top of the hour after the Reportable Disturbance
B. At the start of the Reportable Disturbance
C. At the end of the Disturbance Recovery Period
D. When all Contingency Reserve has been exhausted
Ans: C. At the end of the Disturbance Recovery Period
Which of the following terms is defined as the scan rate values of a
Balancing Authority's ACE measured in MW, which includes the
difference between the Balancing Authority's Net Interchange Actual
and its Net Interchange Scheduled, plus its Frequency Bias obligation,
plus any known meter error?
A. Automatic Time Error
B. Reporting ACE
C. ACE Control Error
D. Reserve Sharing Group Reporting
All rights reserved © 2025/ 2026 |
, Page |2
Ans: B. Reporting ACE
Which of the following terms applies to the Western Interconnection
only, and the addition of a component to the ACE equation that
modifies the control point for the purpose of continuously paying back
Primary Inadvertent Interchange to correct accumulated time error?
A. Reporting ACE
B. Automatic Time Error Correction
C. Reserve Sharing Group Reporting ACE
D. Regulation Reserve Sharing Group
Ans: B. Automatic Time Error Correction
You are a Balancing Authority Operator. A neighboring Balancing
Authority in the Interconnection suddenly has a 500 MW generator trip
due to a generator ground. What part of the ACE equation, ACE = (NIA-
NIS) - 10B (FA-FS) - IME, allows you and other Balancing Authorities in
the Interconnection to help stabilize the Interconnection frequency
error?
A. (FA- FS) - IME
B. NIA - NIS
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C. 10B (FA-FS)
D. 4 IME
Ans: C. 10B (FA-FS)
Balancing Authority A is scheduled to import a net 200 MW and is
actually importing a net 150 MW. The Bias Setting is -100 MW/.1 HZ
and Actual Frequency is 59.95 Hz. What is Balancing Authority A's ACE
reading?
A. +100 MW
B. -100 MW
C. 0 MW
D. -55 MW
Ans: C. 0 MW
Which of the following elements is NOT included in the ACE equations
frequency component?
A. Actual Frequency (FA)
B. Scheduled Frequency (FS)
C. Frequency Bias Setting (B)
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D. Meter Error (IME)
Ans: D. Meter Error (IME)
A Balancing Authority is slightly undergenerating its Actual System
Frequency (FA) is 60.03 Hz. What is the result of the Balancing
Authority's action?
A. The Balancing Authority is helping the Interconnection Frequency.
B. The Balancing Authority is in CPS1 violation.
C. The Balancing Authority is hurting the Interconnection Frequency.
D. The Balancing Authority is in BAAL violation
Ans: A. The Balancing Authority is helping the Interconnection
Frequency
Which statement best describes the CPS1 requirement?
A. ACE must follow changes in load and schedule within a bandwidth
called L10.
B. The Responsible Entity must operate so its CPS1 is greater than or
equal to 100% for the preceding 12-month period.
All rights reserved © 2025/ 2026 |
