Study desk with books and learning tools for subject-based MCQ preparation

Focused topic practice

economics of power generation MCQs

Practise focused economics of power generation questions with marked answers for exam preparation and subject revision.

economics of power generation Mcqs

1. In Hopkinson demand rate or two part tariff the demand rate or fixed charges are__________?
0

A. dependent upon the energy consumed

B. dependent upon the maximum demand of the consumer

C. both A and B

D. neither A nor B

2. For a consumer the most economical power factor is generally____________?
0

A. 0.5 lagging

B. 0.95 lagging

C. 0.5 leading

D. 0.95 leading

3. The knowledge of diversity factor helps in determining__________?
0

A. average load

B. kWh generated

C. peak load

D. plant capacity

4. Which of the following is the disadvantage of a synchronous condenser?
0

A. High maintenance cost

B. All of the above

C. Continuous losses in motor

D. Noise

5. The expected useful life of an hydroelectric power station is around_________________?
0

A. 60 years

B. 100 years

C. 15 years

D. 30 years

6. The load factor of domestic load is usually____________?
0

A. 30 to 40%

B. 10 to 15%

C. 60 to 70%

D. 50 to 60%

7. Which lightening stroke is most dangerous?
0

A. Indirect stroke on conductor

B. Direct stroke on tower top

C. Direct stroke on ground wire

D. Direct stroke on line conductor

8. Annual instalment towards depreciation reduces as rate of interest increases with______________?
0

A. straight line depreciation

B. none of the above

C. reducing balances depreciation

D. sinking fund depreciation

9. Generating capacity connected to the bus bars and ready to take load when switched on is known as____________?
0

A. spinning reserve

B. cold reserve

C. hot reserve

D. firm power

10. Most efficient plants are normally used as____________?
0

A. base load plants

B. none of the above

C. peak load plants

D. either A. or (b)

11. In a distribution system, in order to improve power factor, the synchronous capacitors are installed__________?
0

A. either A. or (b)

B. at the sending end

C. none of the above

D. at the receiving end

12. An alternator coupled to a __________ runs at slow speed, as compared to as compared to others.
0

A. hydraulic turbine

B. gas turbine

C. diesel engine

D. steam turbine

13. A consumer has to pay lesser fixed charges in____________?
0

A. two part tariff

B. flat rate tariff

C. any of the above

D. maximum demand tariff

14. Approximate estimation of power demand can be made by_____________?
0

A. economic parameters

B. load survey method

C. statistical methods

D. mathematical method

E. all of the above

15. When the demand of consumers is not met by a power plant, it will resort to which of the following?
0

A. Load shedding

B. Power factor improvement at the , generators

C. Penalising high load consumers by increasing the charges for electricity

D. Efficient plant operation

16. For high value of diversity factor, a power station of given installed capacity will be in a position to supply?
0

A. neither A. nor B.

B. less number of consumers

C. either A. or B.

D. more number of consumers

17. Low power factor is usually not due to___________?
0

A. fluorescent tubes

B. induction motors

C. incandescent lamp

D. arc lamps

18. Which of the following is the essential requirement of peak load plant ?
0

A. It should produce high voltage

B. It should be small in size

C. It should be capable of starting quickly

D. It should run at high speed

19. Which of the following component, in a steam power plant, needs maximum maintenance attention?
0

A. Steam turbine

B. Condenser

C. Water treatment plant

D. Boiler

20. Which of the following is not a source of power?
0

A. Photovoltaic cell

B. Photoelectric cell

C. Solar cell

D. Thermocouple

Previous Next

Showing 1 to 20 of 98 mcqs