The frequency of voltage generated, in case of generators, can be increased by___________?
A. using reactors
B. increasing the load
C. adjusting the governor
D. reducing the terminal voltage
E. none of the above
The underground system cannot be operated above_________________?
A. 440 V
B. 11 kV
C. 33 kV
D. 66 kV
A uniformly-loaded D.C. distributor is fed at both ends with equal voltages. As compared to a similar distributor fed at one end only, the drop at the middle point is______________?
A. one-fourth
B. one-third
C. one-half
D. twice
E. none of the above
When the interconnector between two stations has large reactance?
A. the transfer of power will take place with voltage fluctuation and noise
B. the transfer of power will take place with least loss
C. the stations will fall out of step be¬cause of large angular displacement between the stations
D. none of the above
The use of strain type insulators is made where the conductors are__________?
A. dead ended
B. at intermediate anchor towers
C. any of the above
D. none of the above
Which of the following equipment, for regulating the voltage in distribution feeder, will be most economical?
A. Static condenser
B. Synchronous condenser
C. Tap changing transformer
D. Booster transformer
The distributors for residential areas are______________?
A. single phase
B. three-phase three wire
C. three-phase four wire
D. none of the above