Power System - I (3140914) MCQs

MCQs of Electrical Supply Systems

Showing 11 to 20 out of 69 Questions
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11.
Ring main distribution is preferred to a radial system because
(a) Voltage drop in the feeder is less and supply is more reliable
(b) Voltage drop in the feeder is less and power factor is high
(c) Power factor is high and supply is more reliable
(d) Power factor is high and system is less expensive
Answer:

Option (a)

12.
A transmission line connects
(a) Generating stations to a switching stations
(b) Step down transformer station to service transformer banks
(c) Distribution transformer to consumer premises
(d) Service point to consumer premises
Answer:

Option (a)

13.
Single phase AC power
(a) Is constant
(b) Pulsates around an average power at double frequency
(c) Pulsates around the average value at the supply frequency
(d) None of above
Answer:

Option (b)

14.
Three phase, four wire system is commonly used for
(a) Primary distribution
(b) Secondary distribution
(c) Primary transmission
(d) Secondary transmission
Answer:

Option (b)

15.
Which of the following is usually not the generating voltage?
(a) 6.6 kV
(b) 9.9 kV
(c) 11 kV
(d) 13.2 kV
Answer:

Option (b)

16.
The highest transmission voltage in India is
(a) 765 kV
(b) 400 kV
(c) 220 kV
(d) 132 kV
Answer:

Option (a)

17.
Large industrial consumers are supplied power at
(a) 400 kV
(b) 11 kV
(c) 66 kV
(d) 132 kV
Answer:

Option (b)

18.
Standard domestic AC supply voltage in India is
(a) 220 V
(b) 230 V
(c) 240 V
(d) 250 V
Answer:

Option (b)

19.
In transmission system, feeder supplies power to
(a) Transformer substation
(b) Service mains
(c) Distributor
(d) All of above
Answer:

Option (c)

20.
Conductor connecting consumer's terminals to the distributors is called
(a) Feeder
(b) Distributor
(c) Service main
(d) None of above
Answer:

Option (c)

Showing 11 to 20 out of 69 Questions
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