KNOWN NERC EXAM QUESTIONS AND ANSWERS | GUARANTEED PASS| ALREADY GRADED A | LATEST UPDATE | INCLUDES A STUDY GUIDE.

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KNOWN NERC EXAM QUESTIONS AND ANSWERS | GUARANTEED PASS| ALREADY GRADED A | LATEST UPDATE | INCLUDES A STUDY GUIDE.

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Institution KNOWN NERC

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KNOWN NERC EXAM QUESTIONS AND ANSWERS |
GUARANTEED PASS| ALREADY GRADED A |
LATEST UPDATE | INCLUDES A STUDY GUIDE.

1. A Balancing Authority notices that Operating Reserve has steadily declined
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throughout the hour.What is the most likely cause?
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a) Loss of a large generator in the area
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b) An inaccurate load forecast
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c) Loss of a major transmission line
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d) A malfunction of EMS
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Ans: b) An inaccurate load forecast
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2. Balancing Area A notices that the Interconnection frequency is 59.94 Hz and
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their ACE is 0.Which of the following could be the cause of this reading?
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a) A net under-generation in Balancing Area A
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b) A net under-generation in the Interconnection
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c) A loss of load in Balancing Area A
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d) A loss of load in the Interconnection
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Ans: b) A net under-generation in the Inter- connection
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o:https://www.stuvia.com/user/Wisdoms 1/
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, 3. What is the penalty for a Balancing Authority violating the Disturbance
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Control Standard?
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a) Must carry additional Contingency Reserve
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b) Must develop a correction action plan
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c) Must re-evaluate and change its Frequency Bias Setting
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d) Must increase its Regulating Reserve
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Ans: a) Must carry additional Contingency Reserve
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4. Your ACE is a large negative value and system frequency is 59.80 Hz.Your
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AGC system is pulsing your units down.What should you do?
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a) Place AGC in flat frequency control 0x 0x 0x 0x 0x

b) Place AGC in flat tie line control 0x 0x 0x 0x 0x 0x

c) Suspend AGC and investigate 0x 0x 0x

d) Do nothing as this is normal
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Ans: c) Suspend AGC and investigate
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5. When two identical generating units are operated in parallel on governor
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control, and on machine has a 5% droop and the other has a 10% droop, the
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unit with the greater (10%) governor droop will:
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a) Respond less to frequency deviations 0x 0x 0x 0x

b) Respond more to frequency deviations 0x 0x 0x 0x

c) Respond the same to frequency deviations 0x 0x 0x 0x 0x

d) Not adjust for frequency changes
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Ans: a) Respond less to frequency deviations
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o:https://www.stuvia.com/user/Wisdoms 2/
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Uploaded on: October 29, 2025
Number of pages: 15
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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