Economics of power generation

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

Steam accumulators
Air motors
Diesel engines
Batteries

Detailed

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SolutionSubmarines for under water movement, are powered by which of the following ?

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

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

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

NTPC
SAIL
BEL
BHEL

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href="https://exam.pscnotes.com/mcq/public-sector-undertaking-is-associated-with-erection-and-sometimes-running-of-thermal-power-plants/#more-55820">Detailed Solutionpublic 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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used as" class="read-more button" href="https://exam.pscnotes.com/mcq/most-efficient-plants-are-normally-used-as/#more-55770">Detailed SolutionMost efficient plants are normally used as

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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?" class="read-more button" href="https://exam.pscnotes.com/mcq/which-plant-can-never-have-100-percent-load-factor/#more-55585">Detailed SolutionWhich plant can never have 100 percent load factor ?

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

Detailed SolutionWhich of

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the following plants is almost inevitably used as base load plant ?

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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href="https://www.youtube.com/channel/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1" target="_blank" class="youtube-subscribe-button"> Subscribe on YouTube 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 SolutionWhich of the following is the disadvantage of static capacitor for power factor improvement ?

29. _______ industry has the least power consumption per tonne of product.

Soap
Sugar
Vegetable oil
Caustic soda

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button" href="https://exam.pscnotes.com/mcq/_______-industry-has-the-least-power-consumption-per-tonne-of-product/#more-54815">Detailed Solution_______ industry has the least power consumption per tonne of product.

30. Which of the following are not repayable after a stipulated period ?

Shares
Fixed deposits
Cash certificates
Bonds

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288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube ?" class="read-more button" href="https://exam.pscnotes.com/mcq/which-of-the-following-are-not-repayable-after-a-stipulated-period/#more-54813">Detailed SolutionWhich of the following are not repayable after a stipulated period ?

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