Nerc Rc Final Exam Prep Test.

NERC RC FINAL EXAM PREP TEST. When does the Contingency Reserve Restoration Period begin? A. At the top of the hour after the Reportable Disturbance B. At the start of the Reportable Disturbance C. At the end of the Disturbance Recovery Period D. When all Contingency Reserve has been exhausted - CORRECT ANSWER C. At the end of the Disturbance Recovery Period Which of the following terms is defined as the scan rate values of a Balancing Authority's ACE measured in MW, which includes the difference between the Balancing Authority's Net Interchange Actual and its Net Interchange Scheduled, plus its Frequency Bias obligation, plus any known meter error? A. Automatic Time Error B. Reporting ACE C. ACE Control Error D. Reserve Sharing Group Reporting - CORRECT ANSWER B. Reporting ACE Which of the following terms applies to the Western Interconnection only, and the addition of a component to the ACE equation that modifies the control point for the purpose of continuously paying back Primary Inadvertent Interchange to correct accumulated time error? A. Reporting ACE B. Automatic Time Error Correction C. Reserve Sharing Group Reporting ACE D. Regulation Reserve Sharing Group - CORRECT ANSWER B. Automatic Time Error Correction You are a Balancing Authority Operator. A neighboring Balancing Authority in the Interconnection suddenly has a 500 MW generator trip due to a generator ground. What part of the ACE equation, ACE = (NIA-NIS) - 10B (FA-FS) - IME, allows you and other Balancing Authorities in the Interconnection to help stabilize the Interconnection frequency error? A. (FA- FS) - IME B. NIA - NIS C. 10B (FA-FS) D. 4 IME - CORRECT ANSWER C. 10B (FA-FS) Balancing Authority A is scheduled to import a net 200 MW and is actually importing a net 150 MW. The Bias Setting is -100 MW/.1 HZ and Actual Frequency is 59.95 Hz. What is Balancing Authority A's ACE reading? A. +100 MW B. -100 MW C. 0 MW D. -55 MW - CORRECT ANSWER C. 0 MW Which of the following elements is NOT included in the ACE equations frequency component? A. Actual Frequency (FA) B. Scheduled Frequency (FS) C. Frequency Bias Setting (B) D. Meter Error (IME) - CORRECT ANSWER D. Meter Error (IME) A Balancing Authority is slightly undergenerating its Actual System Frequency (FA) is 60.03 Hz. What is the result of the Balancing Authority's action? A. The Balancing Authority is helping the Interconnection Frequency. B. The Balancing Authority is in CPS1 violation. C. The Balancing Authority is hurting the Interconnection Frequency. D. The Balancing Authority is in BAAL violation - CORRECT ANSWER A. The Balancing Authority is helping the Interconnection Frequency Which statement best describes the CPS1 requirement? A. ACE must follow changes in load and schedule within a bandwidth called L10. B. The Responsible Entity must operate so its CPS1 is greater than or equal to 100% for the preceding 12-month period. C. The average ACE for a defined 10-minute period must be within a limit called L10. D. ACE must start to return to zero one minute after crossing zero. - CORRECT ANSWER B. The Responsible Entity must operate so its CPS1 is greater than or equal to 100% for the preceding 12-month period A Balancing Authority's CPS1 calculation is computed using its clock-minute average of two values. What are those two values? A. Reporting ACE and Frequency Error B. Actual and Scheduled Net Interchange NIA and NIS. C. L10 and Reporting ACE D. Actual and Scheduled Frequency (FA and FS) - CORRECT ANSWER A. Reporting ACE and Frequency Error To conform to CPS requirements, a Balancing Authority must have which of the following? A. CPS1 greater than or equal to 90% or BAAL greater than or equal to 100%. B. CPS1 greater than or equal to 100% and ACE does not exceed BAAL more than 15 consecutive minutes. C. CPS1 greater than or equal to 100% and ACE does not exceed BAAL more than 30 consecutive minutes. D. CPS1 greater than or equal to 90% and ACE does not exceed BAAL more than 30 consecutive minutes. - CORRECT ANSWER C. CPS1 greater than or equal to 100% and ACE does not exceed BAAL more than 30 consecutive minutes. What should a Balancing Authority set Scheduled Frequency to for a slow Time Error Correction? A. 60.02 Hz B. 59.98 Hz C. 59.80 Hz D. 60.20 Hz - CORRECT ANSWER A. 60.02 Hz Which of the following is a potential source of Contingency Reserve? 1. Offline generation that takes 10 minutes to start and ramp to full output 2. Online generation at full load 3. Controllable load resources 4. Voltage reductions A. 3 and 4 B. 2 and 3 C. 1 and 3 D. 1 and 2 - CORRECT ANSWER C. 1 and 3 In an Interconnection, which of the following is required to be in the metered boundaries of a Balancing Authority Area? A. Generation B. Transmission C. Load D. All are required to be within the metered boundaries of a Balancing Authority. - CORRECT ANSWER D. All are required to be within the metered boundaries of a Balancing Authority. The minimum compliance for NERC Disturbance Control Standard (DCS) is ________? A. 90% of all reportable disturbances B. 90% of all disturbances C. 100% for all reportable disturbances D. 100% for all generator tips - CORRECT ANSWER C. 100% for all reportable disturbances A Balancing Authority has a normal load of around 8500 MW. Its most severe single contingency is a 700 MW coal-fired steam unit. At 0810, the ACE value was at -55 MW when a 600 MW generator in the Balancing Authority's northern area tripped off line due to a generator differential. This event resulted in a large negative ACE for the Balancing Authority. What value must ACE return to and in what time frame to avoid a DCS violation? A. -55 MW ACE in 15 minutes B. Zero ACE in 10 minutes C. -55 MW ACE in 10 minutes D. Zero ACE in 15 minutes - CORRECT ANSWER A. -55 MW ACE in 15 minutes If a Reserve Sharing Group member has experienced a Reportable Disturbance condition but does not call for reserve activation from other members, the entire group is considered to be in a disturbance condition. A. True B. False - CORRECT ANSWER B. False Turbine governors arrest Frequency deviations. Of the following, which control system compares and brings Net Actual Interchange back in line or as close to Net Scheduled Interchange as possible? A. Load Response B. Flat Frequency Control C. Automatic Generation Control D. Automatic Voltage Regulation - CORRECT ANSWER C. Automatic Generation Control Automatic Generation Control uses the ACE equation to ________. A. Minimize Inadvertent Interchange among Balancing Authority areas B. Provide frequency support for the Interconnection C. Both answers are correct D. Neither answer is correct - CORRECT ANSWER C. Both answers are correct Which part of the ACE equation reflects Pseudo-Ties values? A. Scheduled Net Interchange component, NIS B. Actual Net Interchange component, NIA C. Frequency component, FA - FS D. Pseudo-Ties are not included in the ACE equation. - CORRECT ANSWER B. Actual Net Interchange component, NIA A Balancing Authority's frequency indication has become erratic and unreliable. Which AGC mode should the Balancing Authority operate in? A. Manual Control B. Flat Frequency Control C. Tie Line Bias Control D. Flat Tie Line Control - CORRECT ANSWER D. Flat Tie Line Control Which of the following is required to ensure Balancing Authority operators are aware of errors associated with data used for calculating Reporting ACE, and how to mitigate those errors? A. An Operating Process for identifying and mitigating errors B. A separate, independent alarm system for ACE data errors C. A backup Reporting ACE calculation using data from an independent source D. Monthly training on identifying and mitigating errors - CORRECT ANSWER A. An Operating Process for identifying and mitigating errors What is the availability requirement per calendar year for frequency metering used for calculating Reportable ACE? A. 99.50% B. 99.00% C. 99.95% D. .995% - CORRECT ANSWER C. 99.95% A Balancing Authority has discovered one tie line meter reading is off by 30 MW, causing the ACE values to be incorrect. What should be done to temporarily adjust for the error until the meter can be calibrated or repaired? A. Take the numbers from the incorrect tie line and insert them into the NIS portion of the ACE equation B. Use the IME portion of the equation to adjust for the meter error C. Change the AGC mode to Flat Frequency Control D. Change the Frequency Bias part of the ACE equation to reflect the error - CORRECT ANSWER B. Use the IME portion of the equation to adjust for the meter error Which of the following terms of the ACE equation is not affected by frequency? A. NIA B. FA C. B D. All terms are affected - CORRECT ANSWER C. B Interchange Schedules are only between adjacent Balancing Authorities, with the exception of Dynamic Schedules. True or False? A. True