You are attempting to parallel two AC generators and the synchroscope pointer is revolving in the fast direction. What is the frequency of the oncoming generator relative to the bus frequency?

Correct Answer: Option D — higher than the bus frequency

A clockwise-revolving synchroscope pointer indicates that the incoming generator frequency exceeds the live bus frequency. Conversely, counter-clockwise rotation signifies a lower frequency, requiring fuel rack adjustments on the prime mover before synchronizing.