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

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

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Generation of Electrical Energy
The effect of considering friction in steam nozzles for the same pressure ratio leads to

decrease in dryness fraction of exit steam
decrease or increase of dryness fraction of exit steam depending upon inlet quality
increase in dryness fraction of exit steam
no change in the quality of exit steam

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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

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

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