Economics of Power Generation MCQ Questions Answers Electrical Engineering

Economics of Power Generation MCQ Questions Answers – Electrical Engineering


1) The fixed cost of energy generated

a) depends on maximum demand

b) depends on units generated

c) in independent of (i) and (ii)

d) none of the above

View Answer
Option – c)

2) When the load factor of a power station increases, the units (kWh) generated

a) are increased

b) are decreased

c) remain the same

d) none of the above

View Answer
Option – a)

3) An ideal value of power factor is

a) 1

b) 0.5

c) 0.8

d) 0.75

View Answer
Option – a)

4) Alternators and transformers are rate in

a) kVA

b) kW

c) kVAR

d) none of the above

View Answer
Option – a)

5) Improving the power factor means making it

a) close to unity

b) zero

c) less than 0.5

d) none of the above

View Answer
Option – a)

6) The depreciation of equipment is

a) more in early years

b) less in early years

c) same every years

d) none of the above

View Answer
Option – b)

7) The most economical power factor for a consumer is generally

a) 0.95 lagging

b) 1

c) 0.6 lagging

d) 0.75 lagging

View Answer
Option – a)

8) When p.f. is improved, the kW capacity of alternators is

a) increased

b) decreased

c) unaffected

d) none of the above

View Answer
Option – a)

9) The best located of p.f. correction equipment to be installed on the  transmission line is at the

a) sending end

b) receiving end

c) middle of line

d) none of the above

View Answer
Option – b)

10) Arc and induction furnaces operate on

a) very low lagging p.f.

b) very low leading

c) very high leading p.f.

d) none of the above

View Answer
Option – a)

11) When p.f. at the generating station is improved, the cost per unit

a) decreases

b) increases

c) remains same

d) none of the above

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Option – a)

12) Most of the loads are

a) inductive

b) capacitive

c) resistive

d) none of the above

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Option – a)

13) The capital cost of a power plant depends on

a) installed capacity only

b) number of units only

c) both (i) and (ii)

d) none of the above

View Answer
Option – c)

14) Flat rate tariff is charged on the basis of

a) connected load

b) units consumed

c) maximum demand

d) both (i) and (ii)

View Answer
Option – b)

15) For power factor improvement, static capacitors have the drawback (s) of

a) short service life

b) getting damaged by high voltage

c) not repairable

d) all of the above

View Answer
Option – d)

16) Domestic consumers are generally charged by

a) simple tariff

b) flat rate tariff

c) block rate tariff

d) maximum demand tariff

View Answer
Option – c)
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