NERC Exams questions with correct
answers,37
Operating reserve may be provided by which of the following?
A. LTCs
B. Capacitor banks
C. Voltage regulators
D. Interruptible loads - correct answersD. 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 -
correct answersA. 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 - correct answersA. Shed load
What measures power flow data between control areas?
A. OASIS
,B. Interchange
C. Transactions
D. Tie-Line metering - correct answersD. 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 - correct answersC. 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 - correct answersC. 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 - correct answersD. 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 - correct answersA. 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 - correct answersD. 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 - correct answersC. 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 - correct answersA. 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 - correct answersA. 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 - correct answersA. 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 - correct answersB. Past load patterns
All of the following electric system security data are to be updated at least every 10 minutes
EXCEPT:
answers,37
Operating reserve may be provided by which of the following?
A. LTCs
B. Capacitor banks
C. Voltage regulators
D. Interruptible loads - correct answersD. 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 -
correct answersA. 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 - correct answersA. Shed load
What measures power flow data between control areas?
A. OASIS
,B. Interchange
C. Transactions
D. Tie-Line metering - correct answersD. 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 - correct answersC. 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 - correct answersC. 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 - correct answersD. 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 - correct answersA. 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 - correct answersD. 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 - correct answersC. 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 - correct answersA. 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 - correct answersA. 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 - correct answersA. 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 - correct answersB. Past load patterns
All of the following electric system security data are to be updated at least every 10 minutes
EXCEPT:
