North American Electric Reliability
Corporation Test Questions and
Answers Study Guide
Operating reserve may be provided by which of the following?
A. LTCs
B. Capacitor banks
C. Voltage regulators
D. Interruptible loads - ANSWER>>D. Interruptible loads
Which of the following is the responsibility of a reserve sharing group (RSG)?
A. Complying with DCS as if it was a single control area
B. Proving regulation service for neighboring RSGs
C. Ensuring each control area in the group maintains 50% blackstart capability
D. Complying with the control performance standards as if it was a single control
area - ANSWER>>A. Complying with DCS as if it was a single control area
,Generation is not sufficient to meet load, the control area is importing heavily,
and voltage is decaying, which of the following actions should be taken by the
operator?
A. Shed load
B. Correct schedule deviation
C. Use the Interconnection Hotline
D. Schedule interchange transaction - ANSWER>>A. Shed load
What measures power flow data between control areas?
A. OASIS
B. Interchange
C. Transactions
D. Tie-Line metering - ANSWER>>D. Tie-Line metering
Transmission line removal as a voltage control can be used if:
A. Loop flow remains high
B. Reactive equipment is available
C. Reliability stays at acceptable levels
D. Synchronous condensers are off the line - ANSWER>>C. Reliability stays at
acceptable levels
Control Area A is generating and sending Control Area B a schedule. Both control
areas should verify all of the following EXCEPT:
A. Magnitude (MW)
B. Ramp rate
C. Price
D. Start/stop times - ANSWER>>C. Price
The AGC control mode that is normally used for system operation is:
A. Flat Tie Mode
B. Flat Frequency Mode
C. Frequency Bias Mode
D. Tie Line Bias Mode - ANSWER>>D. Tie Line Bias Mode
,There has been a wide-area disturbance. The transfers through the system have
increased and there is a possibility that loss of one major tie line would cause
corresponding loading and voltage deviations. Having system resources available,
the security coordinator should:
A. Increase generation to reduce flows across the ties
B. Implement schedule changes across the hour
C. Implement a voltage reduction plan
D. Advise the supervisor - ANSWER>>A. Increase generation to reduce flows
across the ties
When referring to transmission lines of an interconnected network, neighboring
systems should use:
A. Own line identifiers and ratings
B. NERC line identifiers and ratings
C. Region line identifiers and ratings
D. Uniform (common) line identifiers and ratings - ANSWER>>D. Uniform
(common) line identifiers and ratings
To what level should a control area maintain its own reactive reserves?
A. 105% voltage level
B. 95% voltage level
C. First contingency conditions
D. Second contingency conditions - ANSWER>>C. First contingency conditions
Which load shedding step should be implemented first (per Policy 6B)?
A. Manual
B. Underfrequency
C. Rate of voltage decay
D. Rate of frequency decay - ANSWER>>A. Manual
Between sending, receiving, and intermediary control areas, what is the minimum
information pertaining to an interchange schedule that must be confirmed?
, 1. The scheduling path & magnitude of the transaction
2. The Start/stop times, ramp times, and duration
3. Price of energy
4. Loss accounting including MVAR at points of receipt and delivery
A. 1 and 2
B. 1 and 4
C. 2 and 3
D. 3 and 4 - ANSWER>>A. 1 and 2
Control areas shall NOT operate to cause any other system to violate established
operating reliability criteria from changes made to:
A. Interchange schedules
B. Capacitor banks
C. Reactors
D. LTCs - ANSWER>>A. Interchange schedules
Per Policy 4, 4A, In order to predict the system's near term load pattern, a system
operator must have information including weather forecasts and:
A. Sufficient metering
B. Past load patterns
C. Projected load patterns
D. Generator overhaul schedules - ANSWER>>B. Past load patterns
All of the following electric system security data are to be updated at least every
10 minutes EXCEPT:
A. Operating reserve
B. Control area demand
C. Area control area frequency
D. Forecast changes on equipment status - ANSWER>>D. Forecast changes on
equipment status
Security Coordinator A requests Reliability Coordinator B to curtail a transaction
from B to C. The Reliability Coordinator B should do which of the following:
Corporation Test Questions and
Answers Study Guide
Operating reserve may be provided by which of the following?
A. LTCs
B. Capacitor banks
C. Voltage regulators
D. Interruptible loads - ANSWER>>D. Interruptible loads
Which of the following is the responsibility of a reserve sharing group (RSG)?
A. Complying with DCS as if it was a single control area
B. Proving regulation service for neighboring RSGs
C. Ensuring each control area in the group maintains 50% blackstart capability
D. Complying with the control performance standards as if it was a single control
area - ANSWER>>A. Complying with DCS as if it was a single control area
,Generation is not sufficient to meet load, the control area is importing heavily,
and voltage is decaying, which of the following actions should be taken by the
operator?
A. Shed load
B. Correct schedule deviation
C. Use the Interconnection Hotline
D. Schedule interchange transaction - ANSWER>>A. Shed load
What measures power flow data between control areas?
A. OASIS
B. Interchange
C. Transactions
D. Tie-Line metering - ANSWER>>D. Tie-Line metering
Transmission line removal as a voltage control can be used if:
A. Loop flow remains high
B. Reactive equipment is available
C. Reliability stays at acceptable levels
D. Synchronous condensers are off the line - ANSWER>>C. Reliability stays at
acceptable levels
Control Area A is generating and sending Control Area B a schedule. Both control
areas should verify all of the following EXCEPT:
A. Magnitude (MW)
B. Ramp rate
C. Price
D. Start/stop times - ANSWER>>C. Price
The AGC control mode that is normally used for system operation is:
A. Flat Tie Mode
B. Flat Frequency Mode
C. Frequency Bias Mode
D. Tie Line Bias Mode - ANSWER>>D. Tie Line Bias Mode
,There has been a wide-area disturbance. The transfers through the system have
increased and there is a possibility that loss of one major tie line would cause
corresponding loading and voltage deviations. Having system resources available,
the security coordinator should:
A. Increase generation to reduce flows across the ties
B. Implement schedule changes across the hour
C. Implement a voltage reduction plan
D. Advise the supervisor - ANSWER>>A. Increase generation to reduce flows
across the ties
When referring to transmission lines of an interconnected network, neighboring
systems should use:
A. Own line identifiers and ratings
B. NERC line identifiers and ratings
C. Region line identifiers and ratings
D. Uniform (common) line identifiers and ratings - ANSWER>>D. Uniform
(common) line identifiers and ratings
To what level should a control area maintain its own reactive reserves?
A. 105% voltage level
B. 95% voltage level
C. First contingency conditions
D. Second contingency conditions - ANSWER>>C. First contingency conditions
Which load shedding step should be implemented first (per Policy 6B)?
A. Manual
B. Underfrequency
C. Rate of voltage decay
D. Rate of frequency decay - ANSWER>>A. Manual
Between sending, receiving, and intermediary control areas, what is the minimum
information pertaining to an interchange schedule that must be confirmed?
, 1. The scheduling path & magnitude of the transaction
2. The Start/stop times, ramp times, and duration
3. Price of energy
4. Loss accounting including MVAR at points of receipt and delivery
A. 1 and 2
B. 1 and 4
C. 2 and 3
D. 3 and 4 - ANSWER>>A. 1 and 2
Control areas shall NOT operate to cause any other system to violate established
operating reliability criteria from changes made to:
A. Interchange schedules
B. Capacitor banks
C. Reactors
D. LTCs - ANSWER>>A. Interchange schedules
Per Policy 4, 4A, In order to predict the system's near term load pattern, a system
operator must have information including weather forecasts and:
A. Sufficient metering
B. Past load patterns
C. Projected load patterns
D. Generator overhaul schedules - ANSWER>>B. Past load patterns
All of the following electric system security data are to be updated at least every
10 minutes EXCEPT:
A. Operating reserve
B. Control area demand
C. Area control area frequency
D. Forecast changes on equipment status - ANSWER>>D. Forecast changes on
equipment status
Security Coordinator A requests Reliability Coordinator B to curtail a transaction
from B to C. The Reliability Coordinator B should do which of the following:
