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Generation of Electrical Energy

Generation of Electrical Energy
The capacity of large turbo-generators varies from

20 to 100 MW
100 to 500 MW
70 to 400 MW
50 to 300 MW

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Generation of Electrical Energy
Blowing down of boiler water is the process

to increase the steam temperature
to reduce the boiler pressure
None of these
to control the solid concentration in the boiler water by removing some of the concentrated saline water

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Generation of Electrical Energy
Artifical draught is produced by

Air fans
All of these
Fan or steam jet
Steam jet

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

Lignite
Peat
Anthracite coal
Bituminous

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

Cast iron
Aluminum
Mild steel
Admiralty brass

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Generation of Electrical Energy
The knowledge of diversity factor helps in determining

Average load
Units generated
Plant capacity
None of these

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