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Generation of Electrical Energy

Generation of Electrical Energy
The output of a solar cell is of the order of

5 W
20 W
1 W
10 W

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

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Generation of Electrical Energy
Reflectors of a nuclear reactor are made up of

Cast iron
Steel
Beryllium
Boron

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Generation of Electrical Energy
The efficiency of a modern boiler using coal and heat recovery equipment is about

25 to 30%
85 to 90%
65 to 70%
40 to 50%

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Generation of Electrical Energy
For the safety of a steam boiler the number of safety valves fitted are

two
four
one
three

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Generation of Electrical Energy
Bio gas consist of

None of these
Only methane
Methane and CO2 with some impurities
A special organic gas

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