PJM GENERATION EXAM
VERIFIED QUESTIONS AND THEIR
REVIEWED SOLUTIONS
The Security Analysis (SA) program runs
approximately how often?
a. 10-30 seconds b. 30-60 seconds c. 1-2 minutes d. 5-
10 minutes
c. 1-2 minutesd.
The Transfer Limit Calculator (TLC) runs
approximately how often and establishes transfer
limits for selected interfaces on the PJM system?
a. 30-60 seconds b. 1-2 minutes c. 4-5 minutes d. 8-10
minutes
c. 4-5 minutes
All interchange transactions are modeled in the IDC
and the IDC calculates flow impacts of these
transactions on each?
a. Flowgate b. Line c. Transformer d. Substation
a. Flowgate
According to PJM, how many types of emergency
messages can be received?
a. Two b. Three c. Four d. Five
c. Four
The sign convention for power flow used at PJM is
positive for power flow into PJM, in contrast to the
NERC sign convention, in which power flow into a
,balancing area is negative.
a. True b. False
True
How many modes of control are available to the PJM
dispatcher for the operation of the PJM RTO?
a. One b. Two c. Three d. Four
C Three
Which form of control is unavailable to the dispatcher
of the PJM RTO?
a. Flat frequency control b. Flat tie line control c. Flat
control d. Tie line bias control
c. Flat control
The DCS states that ACE must return either to zero or
to its pre-disturbance level within how many minutes
following the start of the disturbance?
a. 5 minutes b. 10 minutes c. 15 minutes d. 30 minutes
c. 15 minutes
The difference between hourly net actual interchange
and hourly net scheduled interchange of a balancing
authority is called?
a. Hourly inadvertent interchange b. Hourly
interchange difference c. Hourly cost d. Hourly
interchange
a. Hourly inadvertent interchange
Generators that commit to provide black start service
shall not have their black start capable designation
terminated within the time of their commitment. PJM
shall provide how much notice prior to terminating the
black start service of the unit?
a. 6 weeks b. 6 months c. 1 year d. 2 years
d. 2 years
, The purpose of reserve generation is to enable PJM to
restore tie lines to a pre-contingency state within what
time frame of a contingency causing an imbalance
between load and generation? a. 10 minutes b. 15
minutes c. 30 minutes d. 60 minutes
c. 30 minutes
A manual load dump warning will be issued when
:a. Actual synchronized reserves are less than the
synchronized reserve requirement
b. Primary reserve is less than the largest generating
unit or the loss of a transmission facility jeopardizes
reliability after all possible measures have been taken
to increase reserves
c. Primary reserves are less than the primary reserve
requirement
d. PJM dispatchers can no longer match the
decreasing load and utilization of emergency
reducible generation that is necessary
b. Primary reserve is less than the largest generating unit
or the loss of a transmission facility jeopardizes reliability
after all possible measures have been taken to increase
reserves
What is the purpose of a capacity emergency
warning? (Select 2)
a. To keep members informed of actual capacity
shortages or contingencies that may jeopardize
reliability
b. To inform NERC of expected RTO status for future
failure
c. To ask members to take specific actions in order to
provide relief to the PJM system
VERIFIED QUESTIONS AND THEIR
REVIEWED SOLUTIONS
The Security Analysis (SA) program runs
approximately how often?
a. 10-30 seconds b. 30-60 seconds c. 1-2 minutes d. 5-
10 minutes
c. 1-2 minutesd.
The Transfer Limit Calculator (TLC) runs
approximately how often and establishes transfer
limits for selected interfaces on the PJM system?
a. 30-60 seconds b. 1-2 minutes c. 4-5 minutes d. 8-10
minutes
c. 4-5 minutes
All interchange transactions are modeled in the IDC
and the IDC calculates flow impacts of these
transactions on each?
a. Flowgate b. Line c. Transformer d. Substation
a. Flowgate
According to PJM, how many types of emergency
messages can be received?
a. Two b. Three c. Four d. Five
c. Four
The sign convention for power flow used at PJM is
positive for power flow into PJM, in contrast to the
NERC sign convention, in which power flow into a
,balancing area is negative.
a. True b. False
True
How many modes of control are available to the PJM
dispatcher for the operation of the PJM RTO?
a. One b. Two c. Three d. Four
C Three
Which form of control is unavailable to the dispatcher
of the PJM RTO?
a. Flat frequency control b. Flat tie line control c. Flat
control d. Tie line bias control
c. Flat control
The DCS states that ACE must return either to zero or
to its pre-disturbance level within how many minutes
following the start of the disturbance?
a. 5 minutes b. 10 minutes c. 15 minutes d. 30 minutes
c. 15 minutes
The difference between hourly net actual interchange
and hourly net scheduled interchange of a balancing
authority is called?
a. Hourly inadvertent interchange b. Hourly
interchange difference c. Hourly cost d. Hourly
interchange
a. Hourly inadvertent interchange
Generators that commit to provide black start service
shall not have their black start capable designation
terminated within the time of their commitment. PJM
shall provide how much notice prior to terminating the
black start service of the unit?
a. 6 weeks b. 6 months c. 1 year d. 2 years
d. 2 years
, The purpose of reserve generation is to enable PJM to
restore tie lines to a pre-contingency state within what
time frame of a contingency causing an imbalance
between load and generation? a. 10 minutes b. 15
minutes c. 30 minutes d. 60 minutes
c. 30 minutes
A manual load dump warning will be issued when
:a. Actual synchronized reserves are less than the
synchronized reserve requirement
b. Primary reserve is less than the largest generating
unit or the loss of a transmission facility jeopardizes
reliability after all possible measures have been taken
to increase reserves
c. Primary reserves are less than the primary reserve
requirement
d. PJM dispatchers can no longer match the
decreasing load and utilization of emergency
reducible generation that is necessary
b. Primary reserve is less than the largest generating unit
or the loss of a transmission facility jeopardizes reliability
after all possible measures have been taken to increase
reserves
What is the purpose of a capacity emergency
warning? (Select 2)
a. To keep members informed of actual capacity
shortages or contingencies that may jeopardize
reliability
b. To inform NERC of expected RTO status for future
failure
c. To ask members to take specific actions in order to
provide relief to the PJM system
