PJM Practice Exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
Real time transmission constraints or contingencies may be alleviated with generators
operating________. A. below 60 Hz. B. on a new price curve. C. on a new cost curve. D. off cost
(out of merit). - CORRECT ANSWER -off cost (out of merit)
What is the minimum size for a solar park to be required to have real and reactive power
telemetry? A. 1 MW. B. 3 MW C. 5 MW D. 7 MW - CORRECT ANSWER -3 MW
PJM calls for which of the following to recover the ACE so that tie line schedules are
maintained? A. instantaneous reserve check B. synchronized reserves C. supplemental status
report D. minimum generation calculation - CORRECT ANSWER -synchronized reserves
If not cancelled by PJM, the minimum generation alert expires A. at the end of the specified light
load period. B. when notified by NERC. C. 12 hours after the alert was issued. D. after a 24hour
period. - CORRECT ANSWER -at the end of the specified light load period.
When PJM declares a hot weather alert, the generation dispatcher should A. determine if
maintenance can be deferred. B. notify transmission operators. C. direct all generating stations to
increase MW output D. direct all generating stations to reduce MVAR output - CORRECT
ANSWER -determine if maintenance can be deferred.
During system restoration, the two categories of reserves are A. dynamic and secondary. B.
spinning and quick start. C. dynamic and spinning. D. spinning and primary - CORRECT
ANSWER -dynamic and spinning
During system restoration, frequency should be maintained between A. 59.50 and 60.00 Hz. B.
59.75 and 61.50 Hz. C. 59.75 and 61.00 Hz. D. 59.50 and 60.50 Hz. - CORRECT
ANSWER -59.75 and 61.00 Hz
PJM issues a heavy load voltage schedule. Member companies who own generation facilities
, should A. remove 230 kV capacitors from service. B. ensure voltage regulators on generating
units are in service on automatic. C. inform transmission providers to have marketers in their
areas cut transactions. D. instruct generating stations to curtail nonessential building loads -
CORRECT ANSWER -ensure voltage regulators on generating units are in service on
automatic
A unit being dispatched economically by PJM should set its MW output based on the A. LMP at
generator bus. B. LMP in the unit's zone. C. Unit's dispatch rate or desired MW level. D.
generation owner's discretion. - CORRECT ANSWER -Unit's dispatch rate or desired MW
level
What hourly revenue data is required of a generator by PJM? A. Compensated MWh delivered
by each unit B. Integrated LMP data per generator node C. Availability by generator schedule D.
Estimated compensation dollars by generator - CORRECT ANSWER -Compensated
MWh delivered by each unit
During system restoration prior to synchronization of a unit, the dispatcher should ensure
sufficient
load is available to A. economize unit operation. B. maximize unit operation. C. stabilize unit
operation. D. minimize unit operation. - CORRECT ANSWER -stabilize unit operation
A non-zero ACE indicates A. over-excitation. B. an imbalance of generation and load C. a
capacity shortage situation D. low temperatures in a localized zone - CORRECT
ANSWER -an imbalance of generation and load
During certain emergency conditions, a Capacity Performance generation resource that fails to
generate the required amount of energy may be charged: A. a peak period maintenance penalty
B. a non-performance assessment charge C. an additional credit requirement D. the synchronized
reserve market clearing price for the past 19 days - CORRECT ANSWER -a non-
performance assessment charge
Control center facilities must have a minimum of how many days of fuel for the backup
generator? . A. 3 B. 5 C. 7 D. 9 - CORRECT ANSWER -5
Exam Questions and CORRECT Answers
Real time transmission constraints or contingencies may be alleviated with generators
operating________. A. below 60 Hz. B. on a new price curve. C. on a new cost curve. D. off cost
(out of merit). - CORRECT ANSWER -off cost (out of merit)
What is the minimum size for a solar park to be required to have real and reactive power
telemetry? A. 1 MW. B. 3 MW C. 5 MW D. 7 MW - CORRECT ANSWER -3 MW
PJM calls for which of the following to recover the ACE so that tie line schedules are
maintained? A. instantaneous reserve check B. synchronized reserves C. supplemental status
report D. minimum generation calculation - CORRECT ANSWER -synchronized reserves
If not cancelled by PJM, the minimum generation alert expires A. at the end of the specified light
load period. B. when notified by NERC. C. 12 hours after the alert was issued. D. after a 24hour
period. - CORRECT ANSWER -at the end of the specified light load period.
When PJM declares a hot weather alert, the generation dispatcher should A. determine if
maintenance can be deferred. B. notify transmission operators. C. direct all generating stations to
increase MW output D. direct all generating stations to reduce MVAR output - CORRECT
ANSWER -determine if maintenance can be deferred.
During system restoration, the two categories of reserves are A. dynamic and secondary. B.
spinning and quick start. C. dynamic and spinning. D. spinning and primary - CORRECT
ANSWER -dynamic and spinning
During system restoration, frequency should be maintained between A. 59.50 and 60.00 Hz. B.
59.75 and 61.50 Hz. C. 59.75 and 61.00 Hz. D. 59.50 and 60.50 Hz. - CORRECT
ANSWER -59.75 and 61.00 Hz
PJM issues a heavy load voltage schedule. Member companies who own generation facilities
, should A. remove 230 kV capacitors from service. B. ensure voltage regulators on generating
units are in service on automatic. C. inform transmission providers to have marketers in their
areas cut transactions. D. instruct generating stations to curtail nonessential building loads -
CORRECT ANSWER -ensure voltage regulators on generating units are in service on
automatic
A unit being dispatched economically by PJM should set its MW output based on the A. LMP at
generator bus. B. LMP in the unit's zone. C. Unit's dispatch rate or desired MW level. D.
generation owner's discretion. - CORRECT ANSWER -Unit's dispatch rate or desired MW
level
What hourly revenue data is required of a generator by PJM? A. Compensated MWh delivered
by each unit B. Integrated LMP data per generator node C. Availability by generator schedule D.
Estimated compensation dollars by generator - CORRECT ANSWER -Compensated
MWh delivered by each unit
During system restoration prior to synchronization of a unit, the dispatcher should ensure
sufficient
load is available to A. economize unit operation. B. maximize unit operation. C. stabilize unit
operation. D. minimize unit operation. - CORRECT ANSWER -stabilize unit operation
A non-zero ACE indicates A. over-excitation. B. an imbalance of generation and load C. a
capacity shortage situation D. low temperatures in a localized zone - CORRECT
ANSWER -an imbalance of generation and load
During certain emergency conditions, a Capacity Performance generation resource that fails to
generate the required amount of energy may be charged: A. a peak period maintenance penalty
B. a non-performance assessment charge C. an additional credit requirement D. the synchronized
reserve market clearing price for the past 19 days - CORRECT ANSWER -a non-
performance assessment charge
Control center facilities must have a minimum of how many days of fuel for the backup
generator? . A. 3 B. 5 C. 7 D. 9 - CORRECT ANSWER -5
