PJM TRANSMISSION MAIN EXAM SCRIPT QUESTIONS AND
ANSWERS SURE A+
✔✔During system restoration, frequency has decayed for an islanded system to 59.05
Hz and is decaying rapidly. The operator should:
a) Notify PJM and seek advice
b) Call on additional generation
c) Wait for the system to settle out
d) Immediately shed load to recover the frequency - ✔✔D
✔✔If inclement weather postpones the start of a planned outage, the outage will:
a) Be postponed indefinitely
b) Be rescheduled as unplanned
c) Have to be resubmitted the following week
d) Retain its status and priority as a planned outage - ✔✔D
✔✔How long does PJM have to correct a facility that is operating above the 4-hour
emergency rating?
a) 1 minute
b) 5 minutes
c) 10 minutes
d) 15 minutes - ✔✔D
✔✔In the event of a heavy load voltage schedule, actions to increase voltage should be
taken:
a) Prior to the start of the scheduling period
b) Prior to most of the load coming in for the operating period
c) After most of the load has come in for the operating period
d) After voltage begins to decrease during the operating period - ✔✔B
✔✔What one-way communication system is used to disseminate information to local
control centers?
a) All-call
b) Email
c) Radio
d) Transaction management system - ✔✔A
✔✔When ordered, a 5% voltage reduction should be taken on:
a) The 230 kV system
b) The 500 kV system
,c) The distribution system
d) Predetermined tie lines - ✔✔C
✔✔During initial transmission system restoration, shunt capacitor banks are removed
from service to prevent which of the following?
a) High loads
b) Low voltage
c) High voltage
d) Low loads - ✔✔C
✔✔If a member detects or suspects actual or attempted sabotage on the bulk power
system, they should
1. Notify PJM immediately
2. Notify SECON immediately
3. Notify DOE within one hour
4. Notify National Guard within one hour
a) 1 and 2 only
b) 2 and 4 only
c) 1 and 3 only
d) 3 and 4 only - ✔✔C
✔✔To avoid cancellation, transmission outages that are less than 5 days in length and
may result in congestion should be submitted to PJM:
a) 7 days prior to the outage
b) 30 working days prior to the outage
c) Before the first day of the week prior to the outage
d) Before the first day of the month prior to the outage - ✔✔D
✔✔Two Transmission Owners (TOs) interconnect during a system restoration. TO A
has restored 600 MW of load. TO B has restored 2000 MW of load. Following the
interconnection, which of the following statements is true?
a) TO A and TO B both control frequency
b) TO A and TO B both control tie line flow
c) Both TOs control frequency and tie line flow
d) One TO controls tie line flow and the other TO controls frequency - ✔✔D
✔✔Which of the following are monitored during system restoration?
1. quick start reserves
2. synchronized reserves
3. operating reserves
4. dynamic reserves
, a) 1 and 2 only
b) 1 and 3 only
c) 2 and 3 only
d) 2 and 4 only - ✔✔D
✔✔A Reactive Reserve Check (RRC) consists of:
a) Unit, Capacitor/Reactor Leading MVAR reserves
b) Unit, Capacitor/Reactor Lagging MVAR reserve
c) Quickstart, Capacitor/Reactor Lagging MVAR reserves
d) Synchornous, Quickstart and Capacitor/Reactor MVAR reserves - ✔✔B
✔✔Which of the following units would receive first priority in the allocation of cranking
power during system restoration?
a) A large, centrally located steam unit that has been off for a maintenance outage and
is considered to be in a cold status
b) A large, electrically isolated steam unit that is considered to be in an intermediate
status
c) A run of river hydro unit located in the central portion of the system
d) A large, centrally located steam unit that is considered to be in a hot status - ✔✔D
✔✔An EHV line is loaded above its SIL (surge impedence loading). This line can be
considered:
a) A VAR source
b) A VAR load
c) A contingency violation
d) Over its STE (short term emergency rating) - ✔✔B
✔✔Manual Load Dump for capacity shortages is initiated:
a) Across the entire RTO on a load-ratio share basis
b) Only in control zone(s) with a deficient energy position
c) Only in the Mid-atlantic region
d) Only where it will be effective to unload the transmission line - ✔✔B
✔✔During system restoration, one means of keeping frequency above 59.5 Hz is to
activate which of the following?
a) Synchronized reserves
b) Dynamic reserves
c) Secondary reserves
d) Shared reserves - ✔✔A
ANSWERS SURE A+
✔✔During system restoration, frequency has decayed for an islanded system to 59.05
Hz and is decaying rapidly. The operator should:
a) Notify PJM and seek advice
b) Call on additional generation
c) Wait for the system to settle out
d) Immediately shed load to recover the frequency - ✔✔D
✔✔If inclement weather postpones the start of a planned outage, the outage will:
a) Be postponed indefinitely
b) Be rescheduled as unplanned
c) Have to be resubmitted the following week
d) Retain its status and priority as a planned outage - ✔✔D
✔✔How long does PJM have to correct a facility that is operating above the 4-hour
emergency rating?
a) 1 minute
b) 5 minutes
c) 10 minutes
d) 15 minutes - ✔✔D
✔✔In the event of a heavy load voltage schedule, actions to increase voltage should be
taken:
a) Prior to the start of the scheduling period
b) Prior to most of the load coming in for the operating period
c) After most of the load has come in for the operating period
d) After voltage begins to decrease during the operating period - ✔✔B
✔✔What one-way communication system is used to disseminate information to local
control centers?
a) All-call
b) Email
c) Radio
d) Transaction management system - ✔✔A
✔✔When ordered, a 5% voltage reduction should be taken on:
a) The 230 kV system
b) The 500 kV system
,c) The distribution system
d) Predetermined tie lines - ✔✔C
✔✔During initial transmission system restoration, shunt capacitor banks are removed
from service to prevent which of the following?
a) High loads
b) Low voltage
c) High voltage
d) Low loads - ✔✔C
✔✔If a member detects or suspects actual or attempted sabotage on the bulk power
system, they should
1. Notify PJM immediately
2. Notify SECON immediately
3. Notify DOE within one hour
4. Notify National Guard within one hour
a) 1 and 2 only
b) 2 and 4 only
c) 1 and 3 only
d) 3 and 4 only - ✔✔C
✔✔To avoid cancellation, transmission outages that are less than 5 days in length and
may result in congestion should be submitted to PJM:
a) 7 days prior to the outage
b) 30 working days prior to the outage
c) Before the first day of the week prior to the outage
d) Before the first day of the month prior to the outage - ✔✔D
✔✔Two Transmission Owners (TOs) interconnect during a system restoration. TO A
has restored 600 MW of load. TO B has restored 2000 MW of load. Following the
interconnection, which of the following statements is true?
a) TO A and TO B both control frequency
b) TO A and TO B both control tie line flow
c) Both TOs control frequency and tie line flow
d) One TO controls tie line flow and the other TO controls frequency - ✔✔D
✔✔Which of the following are monitored during system restoration?
1. quick start reserves
2. synchronized reserves
3. operating reserves
4. dynamic reserves
, a) 1 and 2 only
b) 1 and 3 only
c) 2 and 3 only
d) 2 and 4 only - ✔✔D
✔✔A Reactive Reserve Check (RRC) consists of:
a) Unit, Capacitor/Reactor Leading MVAR reserves
b) Unit, Capacitor/Reactor Lagging MVAR reserve
c) Quickstart, Capacitor/Reactor Lagging MVAR reserves
d) Synchornous, Quickstart and Capacitor/Reactor MVAR reserves - ✔✔B
✔✔Which of the following units would receive first priority in the allocation of cranking
power during system restoration?
a) A large, centrally located steam unit that has been off for a maintenance outage and
is considered to be in a cold status
b) A large, electrically isolated steam unit that is considered to be in an intermediate
status
c) A run of river hydro unit located in the central portion of the system
d) A large, centrally located steam unit that is considered to be in a hot status - ✔✔D
✔✔An EHV line is loaded above its SIL (surge impedence loading). This line can be
considered:
a) A VAR source
b) A VAR load
c) A contingency violation
d) Over its STE (short term emergency rating) - ✔✔B
✔✔Manual Load Dump for capacity shortages is initiated:
a) Across the entire RTO on a load-ratio share basis
b) Only in control zone(s) with a deficient energy position
c) Only in the Mid-atlantic region
d) Only where it will be effective to unload the transmission line - ✔✔B
✔✔During system restoration, one means of keeping frequency above 59.5 Hz is to
activate which of the following?
a) Synchronized reserves
b) Dynamic reserves
c) Secondary reserves
d) Shared reserves - ✔✔A
