NERC PREP TEST 101 ANSWER KEY
a. Generator MVAR output would increase
1. If a 500 kV transmission
line with a surge impedance
loading of 800 MW is
currently loaded at 1400
MW, which of the following
events would most likely
occur?
a. Generator MVAR output
would increase
b. All system capacitors
would trip off-line
c. Generator MVAR output
would decrease
d. All automatic reactors
would connect to the system
c. Return outaged equipment to service
2. When system conditions
are such that emergency
procedures are expected to
be implemented, which of
the following actions should
be considered first?
a. Shed firm load
b. Implement Active Load
Management
c. Return outaged equipment
to service
d. Request a voltage
reduction
,NERC PREP TEST 101 ANSWER KEY
b. Reduce interchange transactions impacting the path
3. If your transmission path
is rated for 1200 MW and
1000 MW are scheduled on
it, but due to parallel flows
the actual flow is 1300 MW,
what action should you take?
a. Request that a phase
shifting transformer be
installed
b. Reduce interchange
transactions impacting the
path
c. Request all parallel flow to
PSEs to increase schedules
d. Reduce all commercial
customer load
b. Shed firm load in the deficient area
4. If your system is MVAR
deficient, what action could
be implemented to prevent
voltage collapse?
a. Raise system frequency
above 60.5 Hz
b. Shed firm load in the
deficient area
c. Separate from the
Interconnection
d. Lower transmission
voltages
,NERC PREP TEST 101 ANSWER KEY
c. Raise system voltages as high as possible, but within
their operating parameters
5. Which of the following
actions can a system operator
take in order to maintain
stability on the system?
a. Request generators to
absorb maximum MVAR
b. Place all operating limits
on dynamic calculation
c. Raise system voltages as
high as possible, but within
their operating parameters
d. Reduce voltages on the
transmission system
b. Ask the Reliability Coordinator for assistance
6. Which of the following
actions should you take if an
outage on a neighboring
system has caused a
violation on your system?
a. Open all tie-lines to your
neighbor
b. Ask the Reliability
Coordinator for assistance
c. Shed load to mitigate the
violation
d. Wait for the neighboring
system to contact you
, NERC PREP TEST 101 ANSWER KEY
c. Inform the Reliability Coordinator
7. If a SOL or IROL
violation occurs due to
transfers across the system
and it is determined that
parallel flows are
contributing to the violation,
what should the system
operator do?
a. Place all system capacitors
in service
b. Reduce system load
c. Inform the Reliability
Coordinator
d. Dump firm load
c. Reschedule the outage if possible
8. While performing a pre-
outage study, you identify
that the transmission outage
will cause a thermal
violation on a parallel path,
which of the following
actions would be the first
one you would implement?
a. Shed load to mitigate the
concern
b. Allow the outage to occur
and see what happens
c. Reschedule the outage if
possible
d. Allow the outage to take
place as long as no load is
lost
a. Generator MVAR output would increase
1. If a 500 kV transmission
line with a surge impedance
loading of 800 MW is
currently loaded at 1400
MW, which of the following
events would most likely
occur?
a. Generator MVAR output
would increase
b. All system capacitors
would trip off-line
c. Generator MVAR output
would decrease
d. All automatic reactors
would connect to the system
c. Return outaged equipment to service
2. When system conditions
are such that emergency
procedures are expected to
be implemented, which of
the following actions should
be considered first?
a. Shed firm load
b. Implement Active Load
Management
c. Return outaged equipment
to service
d. Request a voltage
reduction
,NERC PREP TEST 101 ANSWER KEY
b. Reduce interchange transactions impacting the path
3. If your transmission path
is rated for 1200 MW and
1000 MW are scheduled on
it, but due to parallel flows
the actual flow is 1300 MW,
what action should you take?
a. Request that a phase
shifting transformer be
installed
b. Reduce interchange
transactions impacting the
path
c. Request all parallel flow to
PSEs to increase schedules
d. Reduce all commercial
customer load
b. Shed firm load in the deficient area
4. If your system is MVAR
deficient, what action could
be implemented to prevent
voltage collapse?
a. Raise system frequency
above 60.5 Hz
b. Shed firm load in the
deficient area
c. Separate from the
Interconnection
d. Lower transmission
voltages
,NERC PREP TEST 101 ANSWER KEY
c. Raise system voltages as high as possible, but within
their operating parameters
5. Which of the following
actions can a system operator
take in order to maintain
stability on the system?
a. Request generators to
absorb maximum MVAR
b. Place all operating limits
on dynamic calculation
c. Raise system voltages as
high as possible, but within
their operating parameters
d. Reduce voltages on the
transmission system
b. Ask the Reliability Coordinator for assistance
6. Which of the following
actions should you take if an
outage on a neighboring
system has caused a
violation on your system?
a. Open all tie-lines to your
neighbor
b. Ask the Reliability
Coordinator for assistance
c. Shed load to mitigate the
violation
d. Wait for the neighboring
system to contact you
, NERC PREP TEST 101 ANSWER KEY
c. Inform the Reliability Coordinator
7. If a SOL or IROL
violation occurs due to
transfers across the system
and it is determined that
parallel flows are
contributing to the violation,
what should the system
operator do?
a. Place all system capacitors
in service
b. Reduce system load
c. Inform the Reliability
Coordinator
d. Dump firm load
c. Reschedule the outage if possible
8. While performing a pre-
outage study, you identify
that the transmission outage
will cause a thermal
violation on a parallel path,
which of the following
actions would be the first
one you would implement?
a. Shed load to mitigate the
concern
b. Allow the outage to occur
and see what happens
c. Reschedule the outage if
possible
d. Allow the outage to take
place as long as no load is
lost
