Q1. The major cause of voltage sag is
A. Malfunction of primary component
B. Equipment Failure
C. Starting of large Induction Machine
D All the above
Q2. What should be the value of sag for proper operation ofoverhead transmission line?
A. High
B. Low
C Neither too low nor too high
D. Anything
Q3. The harmonic current distortion in adjustable speed drive is__________.
A. Constant
B. Not Constant
C High
D. Low
Q4. Reducing the number of short-circuit faults in a system,reduces
A. Sag
B. Interruptions
C Sag & Interruptions
D. None of the above
Q5. During normal operation, the UPS takes its power from thesupply, rectifies the ac voltage to dc and inverts it again to acwith the
A. Same frequency and rms value
B. Different frequency and rms value
C Same frequency and different rms value
D. Different frequency and same rms value
