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Generation of Electrical Energy

Generation of Electrical Energy
Which of the following coals has the highest calorific value?

Bituminous
Lignite
Peat
Anthracite coal

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Generation of Electrical Energy
Basic unit of of energy is

Joule/sec
Watt
Joule
Watt/sec

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Generation of Electrical Energy
The thermal efficiency of a steam power plant is about

69%
80%
28%
75%

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Generation of Electrical Energy
The pressure at the furnace is minimum in case of

induced draught system
forced draught system
natural draught system
balanced draught system

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Generation of Electrical Energy
Rankine cycle efficiency of a good steam power plant may be in the range of

70 to 80 percent
15 to 20 percent
90 to 95 percent
35 to 45 percent

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Generation of Electrical Energy
Water hammer is developed in a

Surge tank
Turbine
Draft tube
Penstock

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