Economics of Power Generation Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “Economics of Power Generation”. These questions are chosen from a collection of most authoritative and best reference books on Electrical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Economics of Power Generation Mcqs comprehensively.

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76.
___________ is invariably used as base load plant.

Diesel engine plant

Nuclear power plant

Gas turbine plant

Pumped storage plant

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77.
In case of _________ fuel transportation is the major problem.

Diesel power plants

Nuclear power plants

Hydro-electric power plants

Thermal power plants

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78.
Which of the following power plants need the least period for installation ?

Thermal power plant

Diesel power plant

Nuclear power plant

Hydro-electric power plant

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79.
__________ is invariably used for peak load

Nuclear power plant

Steam turbine plant

Pumped storage plant

None of the above

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80.
Which of the following is the essential requirement of peak load plant ?

It should run at high speed

It should produce high voltage

It should be small in size

It should be capable of starting quickly

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81.
By the use of which of the following power factor can be improved?

Phase advancers

Synchronous compensators

Static capacitors

Any of the above

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82.
An induction motor has relatively high power factor at__________?

Rated r.p.m.

No load

20 percent load

Near full load

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83.
In a distribution system, in order to improve power factor, the synchronous capacitors are installed__________?

At the receiving end

At the sending end

Either A. or (b)

None of the above

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84.
Which of the following is the disadvantage of a synchronous condenser?

High maintenance cost

Continuous losses in motor

Noise

All of the above

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85.
For a consumer the most economical power factor is generally____________?

0.5 lagging

0.5 leading

0.95 lagging

0.95 leading

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86.
In an interconnected system, the diversity factor of the whole system:

Remains unchanged

Decreases

Increases

None of the above

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87.
__________ will be least affected due to charge in supply voltage frequency.

Electric clock

Mixer grinder

Ceiling fan

Room heater

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88.
Which of the following is not necessarily an advantage of interconnecting various power stations?

Improved frequency of power supplied

Reduction in total installed capacity

Increased reliability

Economy in operation of plants

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89.
For a diesel generating station the useful life is expected to be around_________Years?

15 to 20 years

20 to 50 years

50 to 75 years

75 to 100 years

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90.
Which of the following is not a method for estimating depreciation charges?

Sinking fund method

Straight line method

Diminishing value method

Halsey’s 50—50 formula

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