KNOWN NERC EXAM QUESTIONS AND ANSWERS | GUARANTEED PASS| ALREADY GRADED A | LATEST UPDATE | INCLUDES A STUDY GUIDE.

KNOWN NERC EXAM QUESTIONS AND ANSWERS |
GUARANTEED PASS| ALREADY GRADED A |
LATEST UPDATE | INCLUDES A STUDY GUIDE.


1. ABalancingAuthoritynoticesthatOperatingReservehassteadilydeclined
o
s o
s o
s o
s o
s o
s o
s o
s o
s




throughout the hour.What is the most likely cause?
so so so o
s so so so so so




a) Loss of a large generator in the area
so so so so so so so




b) An inaccurate load forecast
so so so




c) Loss of a major transmission line
so so so so so




d) A malfunction of EMS
so so so




Ans:b) An inaccurate load forecast
o
s so so so so




2. BalancingAreaAnoticesthattheInterconnectionfrequencyis59.94Hzand their o
s o
s o
s o
s o
s o
s o
s o
s o
s o
s o
s so




ACE is 0.Which of the following could be the cause of this reading?
so so so o
s so so so so so so so so so so




a) A net under-generation in Balancing Area A
so so so so so so




b) A net under-generation in the Interconnection
so so so so so




c) A loss of load in Balancing Area A
so so so so so so so




d) A loss of load in the Interconnection
so so so so so so




Ans:b) A net under-generation in the Inter- connection
o
s so so so so so so so




o:https://www.stuvia.com/user/Wisdoms 1 /15
so so

, 3. What is the penaltyfora BalancingAuthority violatingtheDisturbance
so so so so so so so so so so




Control Standard?
so so




a) Must carry additional Contingency Reserveso so so so




b) Must develop a correction action plan so so so so so




c) Must re-evaluate and change its Frequency Bias Setting
so so so so so so so




d) Must increase its Regulating Reserve so so so so




Ans:a) Must carry additional Contingency Reserve
o
s so so so so so




4. YourACEisalargenegativevalueandsystemfrequencyis59.80Hz.Your AGC
o
s o
s so o
s o
s o
s o
s o
s o
s o
s o
s o
s o
s so




system is pulsing your units down.What should you do?
so so so so so so o
s so so so




a) Place AGC in flat frequency control so so so so so




b) Place AGC in flat tie line control so so so so so so




c) SuspendAGC and investigate so so so




d) Do nothing as this is normal
so so so so so




Ans:c) Suspend AGC and investigate
o
s so so so so




5. When two identical generating units are operated in parallel on governor
so so so so so so so so so so




control,and on machine has a 5% droop and the other has a 10% droop,the unit
so o
s so so so so so so so so so so so so so o
s so




with the greater (10%) governor droop will:
so so so so so so so




a) Respond less to frequency deviations so so so so




b) Respond more to frequency deviations so so so so




c) Respond the same to frequency deviations so so so so so




d) Not adjust for frequency changes
so so so so




Ans:a) Respond less to frequency deviations
o
s so so so so so




o:https://www.stuvia.com/user/Wisdoms 2 /15
so so