NERC TEST QUESTIONS / COMPLETE ACTUAL EXAM / 220+
QUESTIONS AND CORRECT DETAILED ANSWERS /
2025/2026 EXAM QUESTIONS AND CORRECT ANSWERS
GRADED A
What percentage of load gives a 1 Hz change in an island condition?
Ans: 6-10% (Think 6-10 day island vacation)
Quiz If ACE is Zero but system Hz is off, what should a system operator do?
Ans: Nothing! ACE bias and interchange schedule will improve frequency
Quiz If ACE is Zero, why not adjust generation to help frequency?
Ans: Could overload equipment, this is a NERC violation
Quiz When restoring from blackout condition, what should be done with load?
,Ans: All load breakers should be opened, load should be restored in a controlled
manner not to exceed 5% of current available gen
Quiz What's the point of COM-001?
Ans: Each TO, BA, RC and NERCNet Use Orgs need to have good comms
Quiz Where do they need to have comms?
Ans: Internal, Between RC, TO and BA, Other RC, TO, BA and authorities
Quiz Where applicable comms should be ______ and _______ routed.
Ans: Redundant and Diversely routed, just in case something fails
Quiz How do we know comms will be good?
Ans: They will manage, alarm, test and/or actively monitor, especially emergency
comm facilities and equipment (non-routine equipment)
Quiz When can languages other than English be used?
,Ans: Only for internal operation, Operation of the BES requires comms in English
Quiz What is required so operation during a loss of comms will be ensured?
Ans: Written operating instructions and procedures
Quiz What is the point of COM-002?
Ans: Ensure BA, TO, GO, and RC have comms and capability to use them for
addressing emergency and that operators are trained to use them
Quiz Who should a BA or TO notify if they are aware of any condition that could
threaten area reliability or when shedding load?
Ans: Notify their RC and any other potentially affected BA or TO
Quiz How should directives be issued by an RC, TO or BA?
Ans: In a clear, concise and definitive manner, using 3 part(way) communications
Quiz Who is required to create a blackstart restoration plan? Who approves it?
, Ans: Transmission Operators; Its RC
Quiz When is the blackstart condition finished?
Ans: When the choice of the next load to be restored is not driven by frequency
and voltage control
Quiz Who directs the procedure for restoring interconnection between Tos?
Ans: RC
Quiz What must be done prior to implementing changes in a restoration plan?
Ans: The parties invloved must be told of changes to their role and specific tasks
prior to implementation.
Quiz How often must the plan be confirmed given no changes were made?
Ans: TO annually review the plan and report to RC
Quiz After a system modification is made, how long does the TO have to update
restoration plans?
QUESTIONS AND CORRECT DETAILED ANSWERS /
2025/2026 EXAM QUESTIONS AND CORRECT ANSWERS
GRADED A
What percentage of load gives a 1 Hz change in an island condition?
Ans: 6-10% (Think 6-10 day island vacation)
Quiz If ACE is Zero but system Hz is off, what should a system operator do?
Ans: Nothing! ACE bias and interchange schedule will improve frequency
Quiz If ACE is Zero, why not adjust generation to help frequency?
Ans: Could overload equipment, this is a NERC violation
Quiz When restoring from blackout condition, what should be done with load?
,Ans: All load breakers should be opened, load should be restored in a controlled
manner not to exceed 5% of current available gen
Quiz What's the point of COM-001?
Ans: Each TO, BA, RC and NERCNet Use Orgs need to have good comms
Quiz Where do they need to have comms?
Ans: Internal, Between RC, TO and BA, Other RC, TO, BA and authorities
Quiz Where applicable comms should be ______ and _______ routed.
Ans: Redundant and Diversely routed, just in case something fails
Quiz How do we know comms will be good?
Ans: They will manage, alarm, test and/or actively monitor, especially emergency
comm facilities and equipment (non-routine equipment)
Quiz When can languages other than English be used?
,Ans: Only for internal operation, Operation of the BES requires comms in English
Quiz What is required so operation during a loss of comms will be ensured?
Ans: Written operating instructions and procedures
Quiz What is the point of COM-002?
Ans: Ensure BA, TO, GO, and RC have comms and capability to use them for
addressing emergency and that operators are trained to use them
Quiz Who should a BA or TO notify if they are aware of any condition that could
threaten area reliability or when shedding load?
Ans: Notify their RC and any other potentially affected BA or TO
Quiz How should directives be issued by an RC, TO or BA?
Ans: In a clear, concise and definitive manner, using 3 part(way) communications
Quiz Who is required to create a blackstart restoration plan? Who approves it?
, Ans: Transmission Operators; Its RC
Quiz When is the blackstart condition finished?
Ans: When the choice of the next load to be restored is not driven by frequency
and voltage control
Quiz Who directs the procedure for restoring interconnection between Tos?
Ans: RC
Quiz What must be done prior to implementing changes in a restoration plan?
Ans: The parties invloved must be told of changes to their role and specific tasks
prior to implementation.
Quiz How often must the plan be confirmed given no changes were made?
Ans: TO annually review the plan and report to RC
Quiz After a system modification is made, how long does the TO have to update
restoration plans?
