PJM GENERATION DISPATCHER SAMPLE EXAM ||
MOST RECENT EXAM 2026|2027 ACTUAL COMPLETE
REAL EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+ |
GUARANTEED SUCCESS!! NEWEST EXAM | JUST
RELEASED!!
Real-time transmission constraints or contingencies may be alleviated
by operating generators:
A. On a new price curve
B. Below 60 hertz
C. Off cost, or out of merit
D. On a new cost curve
Answer: C. Off cost, or out of merit
Rationale: When transmission constraints or contingencies require
additional generation that is not economically selected under the
normal dispatch, PJM may operate units out of merit to address
reliability requirements.
If PJM ACE shows overgeneration, actual imports are:
A. More than scheduled
B. Exactly as scheduled
C. Less than scheduled
D. On a flat tie line
Answer: C. Less than scheduled
,Rationale: ACE reflects the relationship between actual and scheduled
interchange along with frequency-related effects. Under the stated
condition, overgeneration corresponds to actual imports being below
scheduled imports.
Which report will PJM request when a maximum-generation
emergency alert is issued?
A. Reactive Reserve Report
B. Minimum Generation Report
C. Instantaneous Reserve Check (IRC)
D. Supplementary Status Report (SSR)
Answer: D. Supplementary Status Report (SSR)
Rationale: The SSR provides PJM with detailed information regarding
generating-unit status and availability during emergency conditions,
supporting evaluation of available generation.
If a fossil steam unit has less than 32 hours of fuel available at
maximum capacity, it should be bid at:
A. Minimum emergency
B. Price
C. Maximum emergency
D. Cost
Answer: C. Maximum emergency
,Rationale: A fossil steam unit with severely limited fuel availability
must be treated as a resource-limited condition. The specified bidding
treatment is the maximum-emergency category.
The loss of a large generating unit on the PJM system can be detected
by monitoring:
A. Load and interchange
B. Frequency and PJM Area Control Error
C. Frequency and load
D. System voltage and load
Answer: B. Frequency and PJM Area Control Error
Rationale: A significant generation loss produces an immediate
system-frequency response and affects PJM's ACE. Monitoring both
provides an effective indication of a major generation disturbance.
A 1,000-MW generating unit trips in the PJM control area, and PJM
ACE indicates 1,050 MW of undergeneration. What immediate action
should PJM take to recover ACE?
A. Schedule additional generating units to parallel as soon as possible
B. Request 100% of synchronized reserves to be loaded
C. Request an SSR
D. Schedule all available regulation
Answer: B. Request 100% of synchronized reserves to be loaded
, Rationale: A major generation loss produces an immediate generation
deficiency. Synchronized reserves are designed to respond rapidly and
are therefore used to help restore the ACE following the contingency.
Which emergency procedures are issued in advance of a scheduled
load period to give the generation dispatcher sufficient time to prepare
for anticipated capacity shortages?
A. Alerts
B. Actions
C. Notifications
D. Warnings
Answer: A. Alerts
Rationale: Alerts are issued ahead of anticipated capacity shortages so
that dispatchers and market participants have sufficient time to
prepare and take appropriate measures.
Synchronized reserves must be large enough to cover the loss of:
A. All generation online
B. Nuclear units online
C. Hydro units
D. The largest single energy contingency
Answer: D. The largest single energy contingency
MOST RECENT EXAM 2026|2027 ACTUAL COMPLETE
REAL EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+ |
GUARANTEED SUCCESS!! NEWEST EXAM | JUST
RELEASED!!
Real-time transmission constraints or contingencies may be alleviated
by operating generators:
A. On a new price curve
B. Below 60 hertz
C. Off cost, or out of merit
D. On a new cost curve
Answer: C. Off cost, or out of merit
Rationale: When transmission constraints or contingencies require
additional generation that is not economically selected under the
normal dispatch, PJM may operate units out of merit to address
reliability requirements.
If PJM ACE shows overgeneration, actual imports are:
A. More than scheduled
B. Exactly as scheduled
C. Less than scheduled
D. On a flat tie line
Answer: C. Less than scheduled
,Rationale: ACE reflects the relationship between actual and scheduled
interchange along with frequency-related effects. Under the stated
condition, overgeneration corresponds to actual imports being below
scheduled imports.
Which report will PJM request when a maximum-generation
emergency alert is issued?
A. Reactive Reserve Report
B. Minimum Generation Report
C. Instantaneous Reserve Check (IRC)
D. Supplementary Status Report (SSR)
Answer: D. Supplementary Status Report (SSR)
Rationale: The SSR provides PJM with detailed information regarding
generating-unit status and availability during emergency conditions,
supporting evaluation of available generation.
If a fossil steam unit has less than 32 hours of fuel available at
maximum capacity, it should be bid at:
A. Minimum emergency
B. Price
C. Maximum emergency
D. Cost
Answer: C. Maximum emergency
,Rationale: A fossil steam unit with severely limited fuel availability
must be treated as a resource-limited condition. The specified bidding
treatment is the maximum-emergency category.
The loss of a large generating unit on the PJM system can be detected
by monitoring:
A. Load and interchange
B. Frequency and PJM Area Control Error
C. Frequency and load
D. System voltage and load
Answer: B. Frequency and PJM Area Control Error
Rationale: A significant generation loss produces an immediate
system-frequency response and affects PJM's ACE. Monitoring both
provides an effective indication of a major generation disturbance.
A 1,000-MW generating unit trips in the PJM control area, and PJM
ACE indicates 1,050 MW of undergeneration. What immediate action
should PJM take to recover ACE?
A. Schedule additional generating units to parallel as soon as possible
B. Request 100% of synchronized reserves to be loaded
C. Request an SSR
D. Schedule all available regulation
Answer: B. Request 100% of synchronized reserves to be loaded
, Rationale: A major generation loss produces an immediate generation
deficiency. Synchronized reserves are designed to respond rapidly and
are therefore used to help restore the ACE following the contingency.
Which emergency procedures are issued in advance of a scheduled
load period to give the generation dispatcher sufficient time to prepare
for anticipated capacity shortages?
A. Alerts
B. Actions
C. Notifications
D. Warnings
Answer: A. Alerts
Rationale: Alerts are issued ahead of anticipated capacity shortages so
that dispatchers and market participants have sufficient time to
prepare and take appropriate measures.
Synchronized reserves must be large enough to cover the loss of:
A. All generation online
B. Nuclear units online
C. Hydro units
D. The largest single energy contingency
Answer: D. The largest single energy contingency
