Economics of power generation Archives

21. Submarines for under water movement, are powered by which of the following ?

Steam accumulators

Air motors

Diesel engines

Batteries

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22. 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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of the following constitutes running cost?" class="read-more button" href="https://exam.pscnotes.com/mcq/for-a-power-plant-which-of-the-following-constitutes-running-cost/#more-56220">Detailed Solution

23. Load curve of a power plant has always

zero slope

positive slope

negative slope

any combination of (A), (B) and (C)

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power plant has always" class="read-more button" href="https://exam.pscnotes.com/mcq/load-curve-of-a-power-plant-has-always/#more-55978">Detailed Solution

24. public sector undertaking is associated with erection and sometimes running of thermal power plants

NTPC

SAIL

BEL

BHEL

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class="screen-reader-text">public sector undertaking is associated with erection and sometimes running of thermal power plants

25. 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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are normally used as" class="read-more button" href="https://exam.pscnotes.com/mcq/most-efficient-plants-are-normally-used-as/#more-55770">Detailed Solution

26. 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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27. Which of the following plants is almost inevitably used as base load plant ?

Diesel engine plant

Gas turbine plant

Nuclear power plant

Pumped storage plant

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base load plant ?" class="read-more button" href="https://exam.pscnotes.com/mcq/which-of-the-following-plants-is-almost-inevitably-used-as-base-load-plant/#more-55558">Detailed Solution

28. 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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capacitor for power factor improvement ?" class="read-more button" href="https://exam.pscnotes.com/mcq/which-of-the-following-is-the-disadvantage-of-static-capacitor-for-power-factor-improvement/#more-55307">Detailed Solution