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Generation of Electrical Energy

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

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

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Generation of Electrical Energy
Evaporative type of condenser has

steam in pipes surrounded by water
water in pipes surrounded by steam
None of these
either (A) or (B)

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Generation of Electrical Energy
In india largest thermal power plant is located at

Sarni
Kota
Neyveli
Chandrapur

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Generation of Electrical Energy
Binary vapor cycles are used to

Increase the performance of the condenser
Increase the efficiency of the plant
Increase efficiency of the turbine
None of these

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Generation of Electrical Energy
The isentropic expansion of steam through nozzle for the steam initially dry saturated at inlet is approximated by equation.

pv = C
pv1i = C
pv1A = C
pv

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Generation of Electrical Energy
In which of the following power plants the maintenance cost is usually high

Diesel power station
Nuclear power plant
Thermal power plant
Hydroelectric plant

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