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Generation of Electrical Energy

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

28%
69%
80%
75%

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

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

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Generation of Electrical Energy
The average ash content in indian coals is about

5%
20%
15%
10%

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

three
one
four
two

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Generation of Electrical Energy
The commonly used material of condenser tubes is

Cast iron
Mild steel
Admiralty brass
Aluminum

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Generation of Electrical Energy
Location of surge tank in a hydro electric station is near to the

None of these
Tailrace
Turbine
Reservoir

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