PJM Interconnection Power System Operations Practice Test 2
EXAM LATEST 2026-2027 QUESTIONS AND 100% Verified
ANSWERS
Which statement best describes the PJM definition of a Directive ?
A. Instructions to take action for a Maximum Emergency Generation Alert or initiate load dump measures for
capacity or transmission emergencies
B. Instructions to take action to control Interconnection Reliability Operating Limits ( IROL ) or issuance of a
PCLLRW
C. Instructions to take action to control Interconnection Reliability Operating Limits ( IROL ) or initiate load dump
measures for capacity or transmission emergencies
D. Instructions to take action for an issuance of a NERC Energy Emergency Alert or take action to control
Interconnection Reliability Operating Limits ( IROL )
C. Instructions to take action to control Interconnection Reliability Operating Limits ( IROL ) or initiate load dump
measures for capacity or transmission emergencies
During extended hot weather events :
A. Transmission equipment will dissipate heat more readily
B. CTs can produce more MWs
C. Power transformers will have a higher rating
D. Transmission lines tend to sag
D. Transmission lines tend to sag
The PJM All - Call process is a form of _______________ used at PIM .
A. One - way communication
,B. Two - way communication
C. Three - way communication
D. Conference call
A. One - way communication
Using the following information determine the drop in frequency of the island when the indicated load is restored
. (Assume a 5 % governor droop)
Generation capacity on - line : 1,500 MW
System Load : 950 MW
System Frequency : 60.2 Hz
Block of load to be restored : 30 MW
A. 60.2 Hz
B. 59.9 Hz
C. 60.1 Hz
D. 60.0 Hz
C. 60.1 Hz
Match the PJM Action with the appropriate weather - related procedure :
A. Severe Storms
B. Cold Weather Alert
C. Hot Weather Alert
D. Use a local temperature set of ratings
I. Alert members to the forecasted high temperatures
II . A cold front has causes a great variation in temperature across your Transmission Zone
III Ensure auto - reclosing is in service on EHV equipment
, IV . Ask members to man CT sites
A. III
B. IV
C. I
D. II
An operator has _minutes to correct Actual Voltages below the Emergency Low Voltage Limit but above the Load
Dump limit
A. 5
B. 10
C. 15
D. 30
A. 5
A Post Contingency Local Load Relief Warning has been issued for contingency control on a 115 kV line for the loss
of a 345 kV Line . An alarm on EMS indicates that the 345 kV line has tripped and the flow on the 115 kV line is
now exceeding the Emergency rating by 5 MVA with no imminent danger to equipment or personnel . Select the
best action the Transmission Owner System Operator should take the following
A. Respond to a directive from PJM to shed load to return flows below the Emergency rating
B. Continue to monitor the flows to ensure they don't exceed the Load Dump rating
C. Inform PJM that you have shed 5 MW of load to return flows below the Emergency rating
D. Immediately switch the 115 kV line out of service to alleviate the overload
A. Respond to a directive from PJM to shed load to return flows below the Emergency rating
B
EXAM LATEST 2026-2027 QUESTIONS AND 100% Verified
ANSWERS
Which statement best describes the PJM definition of a Directive ?
A. Instructions to take action for a Maximum Emergency Generation Alert or initiate load dump measures for
capacity or transmission emergencies
B. Instructions to take action to control Interconnection Reliability Operating Limits ( IROL ) or issuance of a
PCLLRW
C. Instructions to take action to control Interconnection Reliability Operating Limits ( IROL ) or initiate load dump
measures for capacity or transmission emergencies
D. Instructions to take action for an issuance of a NERC Energy Emergency Alert or take action to control
Interconnection Reliability Operating Limits ( IROL )
C. Instructions to take action to control Interconnection Reliability Operating Limits ( IROL ) or initiate load dump
measures for capacity or transmission emergencies
During extended hot weather events :
A. Transmission equipment will dissipate heat more readily
B. CTs can produce more MWs
C. Power transformers will have a higher rating
D. Transmission lines tend to sag
D. Transmission lines tend to sag
The PJM All - Call process is a form of _______________ used at PIM .
A. One - way communication
,B. Two - way communication
C. Three - way communication
D. Conference call
A. One - way communication
Using the following information determine the drop in frequency of the island when the indicated load is restored
. (Assume a 5 % governor droop)
Generation capacity on - line : 1,500 MW
System Load : 950 MW
System Frequency : 60.2 Hz
Block of load to be restored : 30 MW
A. 60.2 Hz
B. 59.9 Hz
C. 60.1 Hz
D. 60.0 Hz
C. 60.1 Hz
Match the PJM Action with the appropriate weather - related procedure :
A. Severe Storms
B. Cold Weather Alert
C. Hot Weather Alert
D. Use a local temperature set of ratings
I. Alert members to the forecasted high temperatures
II . A cold front has causes a great variation in temperature across your Transmission Zone
III Ensure auto - reclosing is in service on EHV equipment
, IV . Ask members to man CT sites
A. III
B. IV
C. I
D. II
An operator has _minutes to correct Actual Voltages below the Emergency Low Voltage Limit but above the Load
Dump limit
A. 5
B. 10
C. 15
D. 30
A. 5
A Post Contingency Local Load Relief Warning has been issued for contingency control on a 115 kV line for the loss
of a 345 kV Line . An alarm on EMS indicates that the 345 kV line has tripped and the flow on the 115 kV line is
now exceeding the Emergency rating by 5 MVA with no imminent danger to equipment or personnel . Select the
best action the Transmission Owner System Operator should take the following
A. Respond to a directive from PJM to shed load to return flows below the Emergency rating
B. Continue to monitor the flows to ensure they don't exceed the Load Dump rating
C. Inform PJM that you have shed 5 MW of load to return flows below the Emergency rating
D. Immediately switch the 115 kV line out of service to alleviate the overload
A. Respond to a directive from PJM to shed load to return flows below the Emergency rating
B
