Generation of Electrical Energy
In a regenerative surface condenser

There are three pumps to remove air, vapor and condensate
There is no pump; the condensate gets removed by gravity
There are two pumps to remove air and condensate
There is one pump to remove air and condensate

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Generation of Electrical Energy
In power station

Reverse capacity= Plant capacity - Max. demand
Reverse capacity= Plant capacity + Max. demand
Reverse capacity= Plant capacity + Average demand
Reverse capacity= Plant capacity - Average demand

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