PJM Exam Questions And 100% Correct
Answers A+ Graded
What is the threshold to have a satellite phone? - ANSWER 500 MW
How often is reactive testing done? - ANSWER 5 years
Which of the following would NOT be a reason for an abrupt deviation in the balancing
area ACE?
1) Error in interchange number
2) Loss of a tie-line RTU
3) Loss of internal load
4) Loss of adjacent control area generation - ANSWER Loss of adjacent control area
generation
Any fuel shortage that may be experienced by a generator should be made known to
PJM. This information is used in the analysis resources and operates the system in a
reliable way. An increased awareness is expected during: - ANSWER Extreme hot or
cold conditions
If a fossil steam unit has less than 32 hours of fuel at max capacity it should be bid at :-
ANSWER Maximum Emergency
A tie line with MW flowing into the PJM control area trips. The system operator will see
which of the following occur?
1) Ace will decrease, frequency will decrease
, 2) ACE will increase, frequency will increase
3) ACE will decrease, frequency will remain the same
4) ACE and frequency will remain the same - ANSWER ACE and frequency will remain
the same
What is PJM's regulation requirement during
a system restoration? - ANSWER 2% of current load
What is the longest duration of outages that can be scheduled during the PJM Peak
Period Maintenance season? - ANSWER 9 Days
Maximum emergency generation is declared by PJM when which of the following
occurs? - ANSWER 20 MVA
When a data link is down, what is the update frequency to PJM? - ANSWER 30 minutes
or agreed upon change
What must be done before taking a self scheduled unit out of service? - ANSWER Give
PJM option to take over the unit for the market
What is the purpose of an exciter? - ANSWER Control voltage by controlling VARs
The mechanical device on a transformer that controls deviation in voltage is called?
1) Primary winding
2) AVR
3) Load tap changer - ANSWER LTC: Load Tap Changer
Operating reserve must be equal to the sum of: - ANSWER 1) Spinning
Answers A+ Graded
What is the threshold to have a satellite phone? - ANSWER 500 MW
How often is reactive testing done? - ANSWER 5 years
Which of the following would NOT be a reason for an abrupt deviation in the balancing
area ACE?
1) Error in interchange number
2) Loss of a tie-line RTU
3) Loss of internal load
4) Loss of adjacent control area generation - ANSWER Loss of adjacent control area
generation
Any fuel shortage that may be experienced by a generator should be made known to
PJM. This information is used in the analysis resources and operates the system in a
reliable way. An increased awareness is expected during: - ANSWER Extreme hot or
cold conditions
If a fossil steam unit has less than 32 hours of fuel at max capacity it should be bid at :-
ANSWER Maximum Emergency
A tie line with MW flowing into the PJM control area trips. The system operator will see
which of the following occur?
1) Ace will decrease, frequency will decrease
, 2) ACE will increase, frequency will increase
3) ACE will decrease, frequency will remain the same
4) ACE and frequency will remain the same - ANSWER ACE and frequency will remain
the same
What is PJM's regulation requirement during
a system restoration? - ANSWER 2% of current load
What is the longest duration of outages that can be scheduled during the PJM Peak
Period Maintenance season? - ANSWER 9 Days
Maximum emergency generation is declared by PJM when which of the following
occurs? - ANSWER 20 MVA
When a data link is down, what is the update frequency to PJM? - ANSWER 30 minutes
or agreed upon change
What must be done before taking a self scheduled unit out of service? - ANSWER Give
PJM option to take over the unit for the market
What is the purpose of an exciter? - ANSWER Control voltage by controlling VARs
The mechanical device on a transformer that controls deviation in voltage is called?
1) Primary winding
2) AVR
3) Load tap changer - ANSWER LTC: Load Tap Changer
Operating reserve must be equal to the sum of: - ANSWER 1) Spinning
