In a regenerative feed heating cycle, the optimum value of the fraction of steam extracted for feed heating________________?

In a steam power plant, the function of a condenser is__________?

A. to maintain pressure below atmospheric to increase work output from the primemover
B. to receive large volumes of steam exhausted from steam prime mover
C. to condense large volumes of steam to water which may be used again in boiler
D. all of the above

Deaerative heating is done to_____________?

Deaerative heating is done to
A. heat the water
B. heat the air in the water
C. remove dissolved gases in the water

Reheat cycle in steam power plant is used to________________?

A. utilise heat of flue gases
B. increase thermal efficiency
C. improve condenser performance
D. reduce loss of heat

For the safety of a steam boiler the number of safety valves fitted are____________?

A. four
B. three
C. two
D. one

Rankine efficiency of a steam power plant____________?

A. improves in summer as compared to that in winter
B. improves in winter as compared to that in summer
C. is unaffected by climatic conditions
D. none of the above

For the induced draught the fan is located_______________?

A. near bottom of chimney
B. near bottom of furnace
C. at the top of the chimney
D. anywhere permissible