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Exam (elaborations)

MIX NERC Exam 2025 | Study Guide with Verified Solutions

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Master the MIX NERC Exam 2025 with this complete study guide featuring detailed solutions, step-by-step review, and fast-track strategies for exam success

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Uploaded on
November 7, 2025
Number of pages
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Written in
2025/2026
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mix question nerc & Answer key


supply of energy

The Disturbance Control
Standard measures a
Balancing Authority's
response to a rapid loss of
_____________.

demand for energy.
interchange.
ACE.
supply of energy.



The loss of a 950 MW generating unit at 100% output.




A Balancing Authority's
largest single contingency is
a unit rated at 1,000 MW.
Which of the following
disturbances would
constitute a reportable
disturbance for Disturbance
Control Performance
evaluation based on the
NERC DCS criteria?

The loss of a 950 MW
generating unit at 100%
output.
The loss of 3 generating
units totaling 1,300 MW
over a period of 3 hours.
The loss of a 750 MW
generating unit at 100%
output.
The loss of 715 MW of firm
load.

, mix question nerc & Answer key
EEA 1




Balancing Authority informs
the Reliability Coordinator
that the projected load in a
Balancing Area for the next
four hours (over the morning
peak) is trending above the
available generation that had
been committed for the day.
Operating Reserves will be
required to be converted into
energy to cover the shortfall.
Which Energy Emergency
Alert (EEA) level should the
RC declare?

No EEA should be declared
until load shed is expected.
EEA 1
EEA 2
EEA 3




All answers are correct



A Balancing Authority
anticipating an operating
capacity or energy
emergency shall perform all
actions necessary which
includes:

Bringing on all available
generation
All answers are correct
Preparing to reduce firm load
Postponing equipment
maintenance

, mix question nerc & Answer key
All answers are correct




As a Transmission Operator,
you realize that the voltage
level is starting to decline in
the North West part of the
system. Which of the
following devices should
you, as a Transmission
Operator, be able to operate,
and/or have another entity
operate to raise the voltage
level back to normal in the
North West part of the
system?

Generator Reactive Output
Transformer Underload Tap
Changers
All answers are correct
Shunt Capacitor Banks

, mix question nerc & Answer key
Energy Emergency Alert Level 1




If a Balancing Authority,
Reserve Sharing Group is
experiencing conditions
where all available resources
are committed to meet firm
load, firm transactions, and
reserve commitments, what
does the deficient entity need
to request their Reliability
Coordinator to issue?

Energy Emergency Warning
Energy Emergency Alert
Level 2
Energy Emergency Alert
Level 3
Energy Emergency Alert
Level 1




balance generation and load




One of the functions of
underfrequency load
shedding is to
______________ within an
electrical island that may
have been created by a
system disturbance.

establish balance between
load and interchange
balance generation and load
stabilize balance between
generators
stabilize the Interconnection

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