Power System - I (3140914) MCQs

MCQs of Substations

Showing 21 to 30 out of 103 Questions
1 2 3 4 5 6
21.
Primary distribution substation voltage is
(a) 11 kV
(b) 33 kV
(c) 66 kV
(d) 220 kV
Answer:

Option (a)

22.
In primary distribution, consumer voltage is
(a) Step down to 400 V, 3 phase, 4 wire
(b) Step up to 765 kV, 3 phase, 3 wire
(c) Step down to 11 kV, 3 phase, 3 wire
(d) Step down to 230 V, 1 phase, 2 wire
Answer:

Option (a)

23.
The voltage between any two phases of a 400 V, 3 phase, 3 wire system is
(a) 220 V
(b) 110 V
(c) 400 V
(d) 250 V
Answer:

Option (c)

24.
The voltage between any phase and neutral of a 400 V, 3 phase, 3 wire system is
(a) 230 V
(b) 110 V
(c) 400 V
(d) 250 V
Answer:

Option (a)

25.
Residential load is connected between
(a) Any two phase
(b) Any one phase and neutral
(c) Any two phase and neutral
(d) Three phase
Answer:

Option (b)

26.
Usually distribution substation are
(a) Underground type
(b) Indoor type
(c) Outdoor type
(d) Any of above
Answer:

Option (c)

27.
A 3 phase, 400 V, delta load is connected across
(a) Three phase
(b) Any two phase and neutral
(c) Three phase and neutral
(d) Any one phase and neutral
Answer:

Option (a)

28.
What is the voltage level of electrical lines running along the road sides with RCC pole?
(a) 66 kV
(b) 33 kV
(c) 11 kV
(d) 400 V
Answer:

Option (c)

29.
Transformer substation does not change
(a) Power
(b) Power factor
(c) Frequency
(d) All of above
Answer:

Option (d)

30.
Neutral is provided in secondary distribution
(a) To get single phase supply
(b) To get zero reference point for all phase voltage terminals
(c) Both (a) and (b)
(d) Neither (a) or (b)
Answer:

Option (c)

Showing 21 to 30 out of 103 Questions
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