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Generation of Electrical Energy

Generation of Electrical Energy
In coal preparation plant, magnetic separators are used to remove

Iron particles
Dust
Sand
Clinkers

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Generation of Electrical Energy
The major heat loss in steam power plant occurs in

Superheater
Boiler
None of these
Condenser

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Generation of Electrical Energy
The most clean power plant is

Diesel power plant
Nuclear power plant
Steam power plant
Hydroelectric plant

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Generation of Electrical Energy
The highest point on the daily load curve represent

Average demand
Load factor
Maximum demand
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.

pv1A = C
pv = C
pv
pv1i = C

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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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