Generation of Electrical Energy
In a regenerative surface condenser

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

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Generation of Electrical Energy
The draught produced, for a given height of the chimney and given mean temperature of chimney gases

decreases with increase in outside air temperature
increases with increase in outside air temperature
remains the same irrespective of outside air temperature
may increase or decrease with increase in outside air temperature

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Generation of Electrical Energy
In a regenerative feed heating cycle, the optimum value of the fraction of steam extracted for feed heating

Decreases with increase in Rankine cycle efficiency
Increases with increase in Rankine cycle efficiency
None of these
Is unaffected by increase in Rankine cycle efficiency

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