NERC CERTIFICATION EXAM TEST BANK | CONTAINS 4 DIFFERENT ALREADY TESTED VERSIONS WITH EX, Exams of Nursing

Download NERC CERTIFICATION EXAM TEST BANK | CONTAINS 4 DIFFERENT ALREADY TESTED VERSIONS WITH EX and more Exams Nursing in PDF only on Docsity! 1 / 22 NERC CERTIFICATION EXAM TEST BANK | CONTAINS 4 DIFFERENT ALREADY TESTED VERSIONS WITH EXPERT VERIFIED QUESTIONS AND ANSWERS | GUARANTEED PASS| ALREADY GRADED A | LATEST UPDATE 1. Balancing Authority A is importing MW and has a tie-line flowing into them when the meter fails to zero. Which of the following statements is true? a . The Balancing Authority's frequency will drop b . The Balancing Authority's generators on AGC will decrease outputc. The Balancing Authority's frequency will increase d. The Balancing Authority's ACE reading will decrease: b . The Balancing Authority's generators on AGC will decrease output 2. Balancing Authority A has tie - line meter fail to zero on a line that is exporting 200 MWs . Which of the following statements is true ? a . The Balancing Authority's total demand indication will increase b . The Balancing Authority's generators on AGC will decrease output c . The Balancing Authority's frequency will decrease d . The Balancing Authority's ACE reading will increase: a . The Balancing Authority's total demand indication will increase 3. How does a System Operator realize the power system is getting close to the end of its available reactive resources ? a. The voltage is increasing b. The rate of decrease / increase of the voltage does not relate to change in the load c. The rate of increase of the voltage decreases with the loadd . The rate of decrease of the voltage increases with the load: d . The rate of decrease of the voltage increases with the load 2 / 22 4. Which of the following indications would result from a significant loss of generation on an external BA ? a. your ACE goes up and frequency stays the same b. your ACE stays the same and frequency increases c. your ACE stays the same and frequency decreases d. your ACE goes down and frequency drops: c. your ACE stays the same and frequency decreases 5. You have restored a line to service after an outage . After shows no current flow . What is your next action ? closing the line , one of the phases a. Have the on - site crew open the line b. Notify your RC c. Call the crew that restored the line to check reading on each phase d . Report RTU problem: c. Call the crew that restored the line to check reading on each phase 6. Which of the following would classify as an Operating Instruction ? a. Requesting generator status from a Generator Operator b. Discussing Operating Plan with an Adjacent Transmission Operator c. Directing a Generator Operator to maintain current MVAR output of a generator d. Requesting outage information from a Distribution Provider: c. Directing a Generator Operator to maintain current MVAR output of a generator 7. After the winter morning peak , you have CTs base loaded unable to decrease output and other units unable to regulate any lower . Nuclear units are loaded and your solar is starting to pick up . ACE is trending up and you have no regulation . What would you do ? a . Take your CTs off-line b . Increase Interchange out c . Curtail solar power production d . Consider available spinning reserve and replace resources planned for the day: a . Take your CTs off-line 5 / 22 a. Increase Generation at B b. Decrease Generation at A c. Shed Load electrical close to Station B d. Increase Load at Station A: d. Increase Load at Station A 17. In ordered to be considered controllable load for contingency reserves the load must be ... ? a . Non - Critical b. SCADA Controlled c. Able to reduce within a specific time periodd . Non - Firm Load: c. Able to reduce within a specific time period 18. On a transmission line that flows Station A to Station B. Station B is open and unable to close due to excessively high voltage at Station B. What device can the system operator use at Station A to mitigate this system problem ? a. Insert a Shunt Capacitor b. Insert a Series Capacitor c. Insert Shunt Reactor d. Bypass a Series Capacitor: c. Insert Shunt Reactor 19. Geomagnetic Disturbances effect the ability to control : a. AGC b. Frequency c. Reactive Power d. Real Power: c. Reactive Power 20. Geomagnetic Induced Currents ( GIC ) may cause which of the following when they travel into the power system? a. Decrease reactive power demand b. Generator operations in the Lead c. Increase of reactive power reserves d. Transformer hot spot and over-heating: d. Transformer hot spot and over- heating 21. How often is a Reliability Coordinator required to perform Real - time assessments to identify an SOL or IROL violation ? 6 / 22 a. 15 minutes b. 30 minutes c. 60 minutes d. 120 minutes: b. 30 minutes 22. A transmission line has capacitance reactance of 200 ohms and inductive reactance of 600 ohms , what is the net reactance of this line ? a. 200 ohms b. 400 ohms c. 600 ohms d. 800 ohms: b. 400 ohms 23. How many poles does a generator need if the RPM is 300 and the Generator Owner expects to operate in the same 60.00 Hz system as a 4 pole , 1800 RPM generator ? a. 12 poles b. 18 poles c. 24 poles d. 48 poles: c. 24 poles 24. What is a Power System Stabilizer used for ? a. Dampening low frequency oscillations b. Correct the excitation system response to low frequency oscillations c. Send corrective voltage signals to the AVR d. All of these are correct: d. All of these are correct 25. When is it acceptable for the voltage to be reduced by 5% ? a. To increase power transfers b. When demand is high and needs to be reduced c. When islanding d. When generation is too high: b. When demand is high and needs to be reduced 26. You have requested an EEA to be declared by your Reliability Coordinator you have no sales and there are no entities with generation to sell , which EEA are you in if you reserves and generation to meet the peak and have implemented demand - side management have your contingency procedures ? 7 / 22 a. EEA 0 b. EEA 1 c. EEA 2 d. EEA 3: c. EEA 2 27. You have maximum generation of 15,000 MW , you are expecting a peak of 7000 MW , you are selling 4000 MW and your largest unit is 1400 MW , what is the total generation you must have ? a. 8400 b. 9600 c. 12400 d. 15060: c. 12400 28. A Reliability Coordinator receives a Time Error notification to begin at the top of the hour and last for 6 hours . Who does the RC notify of a Time Error correction a. All Balancing Authorities in the Interconnection b. Balancing Authorities in its area c. Post it on RCIS d. RC implements time error correction for their BA: b. Balancing Authorities in its area 29. During a disturbance , you have separated from the Interconnection and your UFLS program shed load and frequency is holding at 59.80 Hz . What would be you next course of action ? a. Reset the UFLS program b. Prepare for frequency to drop and other levels of UFLS to activate c. Manually shed load to restore Frequency d. Ask RC for increase generation in area: c. Manually shed load to restore Frequency 30. Voltage is high and you need to lower the amount of MVARS on your system , what do you use ? a. Generators b. Shunt Capacitor 10 / 22 41. Your Balancing Authority Area is doing a perfect job balancing its generation - load - interchange obligation , your frequency bias is 50 MW / 0.1 Hz . Frequency suddenly falls to 59.93 Hz due to an external loss of generation . What is this BA ACE ? a. 0 b. -35 c. +35 d. -50: a. 0 42. How often should you test alternative communication means ? a. Daily b. Weekly c. Monthly d. Quarterly: c. Monthly 43. Use chart to determine minimum load that must be shed to alleviate 34 MW of power flow? Station Load DF Impact A. 10. 50. 5 B. 20. 45. 9 C. 10. 50. 5 D. 20. 10. 2E. 50. 50. 25 a. 50 b. 70 c. 80 d. 90: b. 70 44. A Transmission Operator sees his meter readings fluctuate at 0710 , he is contacted by a neighbor TOP at 0720 who informs him that an IROL had occurred at 0705. By when must they mitigate the IROL violation , assuming the IROL has the maximum allowed IROL TV a. 0730 b. 0735 11 / 22 c. 0740 d. 0805: b. 0735 45. How much power draw can be expected during restoration when you pick up motor loads that has been off for an extended period of time ? a. Up to 2 times normal b. Up to 5 times normal c. Up to 10 times normal d. Up to 15 times normal: c. Up to 10 times normal 46. A transtormer with nameplate limit of 300/400/500 MVA , has no auxiliary cooling , at what limit would you operate this transformer ? a. 300 b. 400 c. 500 d. Take it off-line: a. 300 47. What initially arrests frequency after a loss of generation : a. underfrequency load shed b. AGC c. Frequency Response Characteristic d. frequency bias: c. Frequency Response Characteristic 48. How will ACE respond when there is a large generation change outside of your Balancing area that causes frequency to go to 59.90 Hz? a. Net Interchange Actual will increase b. Net Interchange Actual will decrease c. Net Interchange Schedules will increase d. Net Interchange Schedules will decrease: a. Net Interchange Actual will increase 49. Your Balancing Authority has lost multiple generators , after deploying contingency reserves the BA still has a large negative ACE and tie lines are over emergency limits with incoming power flow What action should you take next : a. Recalculate tie line limits 12 / 22 b. Schedule more interchange, regardless of cost c. Shed load to return ACE to zero d. Restore reserves: c. Shed load to return ACE to zero 50. A local transmission line trips when it made contact with a tree . At one terminal SCADA shows every breaker on the bus open . What likely caused this result ? a. Differential relay b. Ground relay c. Remedial Action Scheme d. Breaker Failure relay: d. Breaker Failure relay 51. b. Line 2 flow will increase: 52. 50 MVA transformer has 30 MW flowing into it from the high - side . How many MVARS could flow through the transformers without exceeding limits ? a. 20 MVARS b. 30 MVARS c. 40 MVARS d. 50 MVARS: c. 40 MVARS 53. A capacitor at Station B is rated at 100 MVAR . Station B voltage is .90 p.u. when you place the capacitor in service , what is the output of the capacitor bank ? a. 100 MVAR b. 90 MVAR c. 81 MVAR d. 50 MVAR: c. 81 MVAR 54. a. Reduce generator 1: 55. A local transmission line is loaded to 410 MW, SOL is 370 MW. There are 2 generators in the area, Generation Shift Factor of Gen A is .5 and of 15 / 22 d. 250 MW: d. 250 MW 64. A Balancing Authority has 15,000 MW of generation capacity , 4000 MW of scheduled imports and needs 1400 MW of contingency reserves . How much load can this BA support ? a. 17600 MW b. 13600 MW c. 12400 MW d. 9600 MW: b. 13600 MW 65. b. Differential Relay: 66. c. Restoring balance between load and generation: 67. Which tool relies on the State Estimator to give accurate results ? a. Energy Management System b. Contingency Analysis c. ACE d. SCADA: b. Contingency Analysis 68. Which is a possible GMD impact on system relaying? a. Current differential schemes may operate due to saturation on CTs b. DTT Schemes may fail due to a loss of fiber optics c. PLC may not function d. Sudden pressure protection may operate due to sensor failure: a. Current differential schemes may operate due to saturation on CTs 69. b. 40 MW: 16 / 22 70. How much current is on a 138 kV line that has 100 MW and 20 MVAR and a power factor of .98 ? a. 84 amps b. 167 amps c. 256 amps d. 425 amps: d. 425 amps 71. You have lost MW , MVAR , and MVA reading . But you have current reading at 1000 amps and voltage is 118 kV on the high side of a 115/69 kV line . What is MVA? a. 118 MVA b. 167 MVA c. 205 MVA d. 120 MVA: c. 205 MVA 72. Three branches are connected in parallel , the currents are 3 , 6 , and 9 amps . What is the total current of the circuit ? a. 0 b. 6 c. 18 d. 36: c. 18 73. A transmission tie - line with power flow coming into your area is approaching its SOL . What should be done first to relieve this situation ? a . Increase generation b . Increase imports c . Reduce voltage on transmission lines d . Shed load: a . Increase generation 74. d. Shed 71 MW from the Dawn Bud: 75. AGC function primarily does which of the following ? 17 / 22 a . Calculates an Area Control Error b . Moves all generator to support frequencyc . Keeps frequency at target d . Determines the stability of the Interconnection: a . Calculates an Area Control Error 76. BA B has scheduled interchange of 150 MWs from BA A and 50 MWs to BA C. Actual interchange is 160 MWs from BA A and 55MWs to BA C. If these power flows continue for a full hour . What is the Inadvertent Interchange for BA B for that hour ? a. -5 MWh b. 5 MWh c. -10 MWh d. 10 MWh: a. -5 MWh 77. b. Generators 1, 3, & 4: 78. A Balancing Authority anticipating an operating capacity or energy emergency shall perform all actions necessary which includes : a . proactive load shedding b . transmission line switching c . bringing on all available generation d . voltage reduction: c . bringing on all available generation 79. Protective relays have current flowing to them that is proportional to the current that is in the primary circuit . What is used to transform the current from the primary circuit to a smaller proportional amount for the protective relay ? a. Current Transformers b. Series Capacitors c. Vacuum Interrupters 20 / 22 88. A Reliability Coordinator receives a transmission line outage request for tomorrow . Studies indicate that this will cause an SOL and possibly an IROL outage . What is the best course of action for the System Operator ? a. Deny the outage and ask the TOP to submit for a later date b. Approve the outage and assume it will be okay c. Approve the outage but upon contingency the line must be placed back in service in the hour d. Deny all requests submitted in a short time frame: a. Deny the outage and ask the TOP to submit for a later date 89. In performing its reliability analysis , a RC identifies a potential reliability problem . What action should the RC take ? a. Initiate EEA process b. Initiate TLR c. Initiate a conference call with impacted entities d. Initiate a conference call with all TOP's in the interconnection transmission line: c. Initiate a conference call with impacted entities 90. During a lightning storm, a fault on a transmission line result in the transmission relay operating and locking-out .The transmission line cannot be returned to service .After running a contingency analysis, the Transmission Operator realizes that if another transmission line relays, there could be cascading outages into a neighboring system. Which of the following actions should the Transmission Operator take: a. Notify impacted entities in the Interconnection of the situation b. Prepare a disturbance report and forward it to the Reliability Coordinator c. Continue operations without notifying anyone , but try to reduce system loading d. Reduce transmission voltages by 5 % to reduce customer demand: a. Notify impacted entities in the Interconnection of the situation 91. Which statement describes a transmission line that is loading above its Surge Impedance Loading ( SIL ) as the demand increases and reactive resources decrease ? a. The line becomes more inductive and the voltage drops 21 / 22 b. The line becomes less inductive and the voltage drops c. The line becomes more inductive and the voltage increases d. The line becomes less inductive and the voltage increases: a. The line becomes more inductive and the voltage drops 92. Frequency and voltage magnitude on each side of the breaker and the power angle across the breaker must be within proper limits when synchronizing transmission systems that have separated or islanded . If not within proper limits , the system operator should take which action ? a. Adjust tap changer on the nearest transformer b. Equalize loads served on one each side of the breaker c. Adjust area generation levels d. Open additional lines until the voltages match: c. Adjust area generation levels 93. NERC and the DOE requires a report to be submitted following the shedding of at least how much firm load ? a. 50 MW b. 100 MW c. 200 MW d. 300 MW: b. 100 MW 94. b. 200MW: 95. A portion of a Reliability Coordinator Area is experiencing low voltage and there are no generation redispatch options available . What action should the Reliability Coordinator take first ? a. Lower transfers across area to unload transmission lines b. Lower loads in the area c. Increase transfers across area d. Increase loads in the area: a. Lower transfers across area to unload transmission lines 96. Field personnel may notice which of the following during a GMD event ? 22 / 22 a. Decreased reactive power demand b. Generators to operate in the lead c. Reduce transformer cooling d. Unusual noise in the Transformer: d. Unusual noise in the Transformer 97. d. All 4 lines simultaneously: 98. a. Line A will increase to 350 MVA after Line B trips: 99. b. 120 MW: 100. Which action would you take to close an open - ended line when the voltage at the open end of the line is too high to close ? a. Energize capacitor bank at closed end bus b. Energize capacitor bank at open end bus c. Insert series capacitors on transmission line d. Remove series reactor from transmission line: b. Energize capacitor bank at open end bus