NERC Transmission Practice Test Questions with
Complete Solutions
Which type of relay operates on the premise of comparing the flow in and out of
the area of protection?
✅✅Correct Answer: Differential relay
Underfrequency load shedding is set-up so that which of the following does
NOT occur?
✅✅Correct Answer: Uncontrolled separation
Who is responsible to make sure that the operation of voltage control equipment
is coordinated with other impacted entities?
✅✅Correct Answer: Transmission Operator
The coordination of voltage schedules by system operators would be utilized to
reduce all of the following EXCEPT
✅✅Correct Answer: Reactive inadvertent
What should a system operator expect to see if the generator increases its
excitation?
✅✅Correct Answer: An increase in MVAR output
A transmission line between Bus A and Bus B has MW flow from Bus B to Bus
A. After the tripping of a parallel line, the line flow from Bus B to Bus A
exceeds the lines thermal rating. Which of the following actions would assist
the operator in correcting the problem?
✅✅Correct Answer: Increase generation at Bus A
What is a major concern for a System Operator during emergency conditions?
✅✅Correct Answer: System remains connected to the Interconnection
If your system has lost a large amount of customer load due to a system
disturbance, but has remained connected to all of your neighbors, what is the
best solution to consider?
✅✅Correct Answer: Coordinate with the neighbors
