Home > Electrical Engineering > Power Systems

Power Systems - Interview Questions and Answers

Prepare for your technical interview with these Power Systems questions.

Ready to test your skills?

Take a timed mock test specifically for Power Systems.

Start Mock Test
61. The low voltage winding of a 400/230 V, 1-phase, 50 Hz transformer is to be connected to a 25 Hz, the supply voltage should be
A. 230 V
B. 460 V
C. 115 V
D. 65 V
Explanation:
62. If an induction machine is run at above synchromous speed, it acts as
A. a synchronous motor
B. an indcution generator
C. an inductor motor
D. none of the above
Explanation:
63. For certain geometry and operating voltage of the uncompensated transmission line, the ratio of power transfer capability to the surge inpedance loading with increase in length
A. increases
B. remains unchanged
C. decreases
D. uncertain
Explanation:
64. For any fixed degree of inductive shunt compensation, additional series capacitive compensation
A. increase the effective length of line
B. increase virtual surge impedance line
C. decrease virtual surge impedance loading of the line
D. none of the above
Explanation:
65. For reducing tower footing resistance it is better to Use
A. chemical and ground rods only
B. chemical and counterpoise only
C. ground rod and counterpoise only
D. chemical, ground rods and counterpoise
Explanation:
« Prev1234567891011121314151617181920Next »