PJM GENERATION DISPATCHER EXAM 100
QUESTIONS & CORRECT ANSWERS LATEST 2025
Real time transmission constraints or contingencies may be alleviated with
generators operating :
A. below 60 hertz
B. on a new price curve
C. on a new cost curve
D. off cost ( out of merit) - ANSWER-D. off cost ( out of merit )
Monitoring LMP may give insights into :
A. system constraints
B. system voltage
C. system frefuency
D. time error - ANSWER-A. system constraints
PJM calls for which of the following to recover the ACE so that tie line schedules
are maintained ?
A. IRC ( instantaneous reserve check )
B. synchronized Reserves
C. supplemential reserves
,D. minimun generation calculation - ANSWER-B. 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 24 hour period - ANSWER-A. at the end of the specified light load period
When PJM declares a hot weather alert , the generation dispatcher should
1. determine if maintenance can be deferred
2. notift transmission operators
3. notify all generating stations and key personnel
4. direct all generating stations to reduce output
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 4 only
D. 3 and 4 only - ANSWER-B. 1 and 3 only
1. determine if maintenance can be deferred
3. notify all generating stations and key personnel
, 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 - ANSWER-C. dynamic and spinning
During system restoration, frequency should be maintained between :
A. 59.50 and 60.00 hertz
B. 59.75 and 61.50 hertz
C. 59.75 and 61.00 hertz
D. 59.50 and 60.50 hertz - ANSWER-C. 59.75 and 61.00 hertz
PJM issues a heave 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 - ANSWER-B.
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 :
QUESTIONS & CORRECT ANSWERS LATEST 2025
Real time transmission constraints or contingencies may be alleviated with
generators operating :
A. below 60 hertz
B. on a new price curve
C. on a new cost curve
D. off cost ( out of merit) - ANSWER-D. off cost ( out of merit )
Monitoring LMP may give insights into :
A. system constraints
B. system voltage
C. system frefuency
D. time error - ANSWER-A. system constraints
PJM calls for which of the following to recover the ACE so that tie line schedules
are maintained ?
A. IRC ( instantaneous reserve check )
B. synchronized Reserves
C. supplemential reserves
,D. minimun generation calculation - ANSWER-B. 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 24 hour period - ANSWER-A. at the end of the specified light load period
When PJM declares a hot weather alert , the generation dispatcher should
1. determine if maintenance can be deferred
2. notift transmission operators
3. notify all generating stations and key personnel
4. direct all generating stations to reduce output
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 4 only
D. 3 and 4 only - ANSWER-B. 1 and 3 only
1. determine if maintenance can be deferred
3. notify all generating stations and key personnel
, 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 - ANSWER-C. dynamic and spinning
During system restoration, frequency should be maintained between :
A. 59.50 and 60.00 hertz
B. 59.75 and 61.50 hertz
C. 59.75 and 61.00 hertz
D. 59.50 and 60.50 hertz - ANSWER-C. 59.75 and 61.00 hertz
PJM issues a heave 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 - ANSWER-B.
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 :
