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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1.
Load factor of a power station is generally___________?

Equal to unity

Less than unity

More than unity

Equal to zero Diversity factor is always

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2.
In two part tariff, variation in load factor will affect____________?

Fixed charges

Operating or running charges

Both A. and (b)

Either A. or (b)

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3.
Which plant can never have 100 percent load factor?

Peak load plant

Base load plant

Nuclear power plant

Hydro electric plant

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6.
For a power plant which of the following constitutes running cost?

Cost of wages

Cost of fuel

Cost of lubricants

All of the above

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7.
Generators for peak load plants are usually designed for maximum efficiency at____________?

25 to 50 percent full load

50 to 75 percent full load

Full load

25 percent overload

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9.
Most efficient plants are normally used as____________?

Peak load plants

Base load plants

Either A. or (b)

None of the above

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10.
In a load curve the highest point represents______________?

Peak demand

Average demand

Diversified demand

None of the above

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11.
The primary reason for low power factor is supply system is due to installation of____________?

Induction motors

Synchronous motors

Single phase motors

D.c. motors

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12.
The efficiency of a plant is of least concern when it is selected as___________?

Peak load plant

Casual run plant

Either A. or (b)

Base load plant

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13.
Which of the following is the disadvantage of static capacitor for power factor improvement?

Easily damaged by high voltage

Cannot be repaired

Short service life

All of the above

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14.
Which lightening stroke is most dangerous?

Direct stroke on line conductor

Indirect stroke on conductor

Direct stroke on tower top

Direct stroke on ground wire

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15.
For the same cylinder dimensions and speed, which of the following engine will produce least power?

Supercharged engine

Diesel engine

Petrol engine

All of the above engines will equal power

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