NERC PRACTICE QUESTION SET 5 Exam Questions with Answers.
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NERC
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NERC
NERC PRACTICE QUESTION SET 5 Exam Questions with Answers.NERC PRACTICE QUESTION SET 5 Exam Questions with Answers.NERC PRACTICE QUESTION SET 5 Exam Questions with Answers.NERC PRACTICE QUESTION SET 5 Exam Questions with Answers.
NERC PRACTICE QUESTION SET 5 Exam Questions
with Answers.
c - ANS If an RC, TOP, or BA determines during annual review of its Operating Plan for
control center backup functionality that a change is needed, the plan must be updated
and approved within how long?
A. 24 hours
b. 30 calendar days
c. 60 calendar days
d. 30 business days
c - ANS The Transmission Operator gives an Operating Instruction to the Generator
Operator to absorb MVAR. Which of the following is appropriate?
a. Refuse the Operating Instruction
b. Place AVR in manual and increase field current
c. Leave AVR in auto and lower the voltage setpoint
d. Leave AVR in auto and raise the voltage setpoint
a - ANS A generator AVR is in manual when a shunt capacitor bank in the area trips
offline. Which statement is true?
a. The generator field current remains the same
b. The generator output voltage increases
c. The MW output of the generator increases
d. The generator MVAR output changes to maintain voltage constant
d - ANS Which of the following devices is used to control real power flow?
a. Shunt capacitor
b. Shunt reactor
c. ULTC transformer
d. Phase Shifting Transformer
c - ANS A 100 MW transaction from area A to area B gets curtailed to 50 MW at half
past the hour. What was the MWh delivered from A to B for that hour?
a. 50 MWh
b. 68.5 MWh
c. 75 MWh
d. 150 MWh
a - ANS A Reliability Coordinator realizes telecommunications was lost for 45 minutes,
what action must the RC take?
a. Notify affected entities
b. Repair or replace within 2 hours
c. Implement the back-up control center
d. Report to NERC within 48 hours
, b - ANS The Reliability Coordinator gives an Operating Instruction to the Transmission
Operator to implement voltage reduction. What is the first action of the Transmission
Operator?
a. Repeat back the Operating Instruction verbatim
b. Repeat back the Operating Instruction
c. Adjust tap changers to lower transmission voltage
d. Lower voltage setpoints on Generator AVRs
d - ANS A Transmission Operator is experiencing high voltages in the early evening.
There are a couple of lightly loaded parallel lines in the area. Which of the following
actions would be most appropriate?
a. Use generators to absorb excess MVAR
b. Place a shunt capacitor in service
c. Remove any shunt reactors that are in service
d. Remove one of the parallel lines from service
b - ANS An area is experiencing high voltages. There are two lightly loaded parallel
lines in the area. The area also has two tie lines with the Interconnection. Which of the
following actions would be most appropriate?
a. Remove one of the tie lines from service
b. Remove one of the parallel lines from service
c. Increase generator AVR setpoints
d. Remove any shunt reactors that are in service
b - ANS A Balancing Area currently has a +75 ACE and its most severe single
contingency is 800 MW. A 675 MW generator at full capacity trips off-line. Which of the
following actions is required of the Balancing Authority?
a. Increase generation 675 MW
b. Increase generation 600 MW
c. Report the generation loss to NERC
d. Switch AGC to manual
b - ANS Which of the following is the first to respond to a frequency drop on the
Interconnection?
a. AGC
b. FR Characteristic
c. AVR
d. Inertia
c - ANS A Balancing Authority has more generation response to frequency than
expected. What could be the cause?
a. Generator droop settings too large
b. Too much motor load
c. Incorrect Frequency Bias Setting
d. Too much inertia
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