A. increases with number of feed heaters increasing
B. decreases with number of feed heaters increasing
C. remains same unaffected by number of feed heaters
D. none of the above
Related Mcqs:
- In a regenerative feed heating cycle, the optimum value of the fraction of steam extracted for feed heating________________?
A. decreases with increase in Rankine cycle efficiency
B. increases with increase in Rankine cycle efficiency
C. is unaffected by increase in Rankine cycle efficiency
D. none of the above - In a regenerative feed heating cycle, the greatest economy is affected___________?
A. when steam is extracted from only one suitable point of steam turbine
B. when steam is extracted from several places in different stages of steam turbine
C. when steam is extracted only from the last stage of steam turbine
D. when steam is extracted only from the first stage of steam turbine - In regenerative cycle feed water is heated by_____________?
A. exhaust gases
B. heaters
C. draining steam from the turbine
D. all above - Regenerative cycle thermal efficiency_______________?
A. is always greater than simple Rankine thermal efficiency
B. is greater than simple Rankine cycle thermal efficiency only when steam is bled at particular pressure
C. is same as simple Rankine cycle thermal efficiency
D. is always less than simple Rankine cycle thermal efficiency - In a regenerative surface condenser_____________?
A. there is one pump to remove air and condensate
B. there are two pumps to remove air and condensate
C. there are three pumps to remove air, vapour and condensate
D. there is no pump, the condensate gets removed by gravity - 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 - Under-feed stokers work best for _________ coals high in volatile matter and with caking tendency?
A. anthracite
B. lignite
C. semibituminous and bituminous - Solar thermal power generation can be achieved by_______________?
A. using focusing collector or heliostates
B. using flat plate collectors
C. using a solar pond
D. any of the above system - The overall efficiency of thermal power plant is equal to____________?
A. Rankine cycle efficiency
B. Carnot cycle efficiency
C. Regenerative cycle efficiency
D. Boiler efficiency x turbine efficiency x generator efficiency - In thermal power plant, heat from the flue gases is utilized in___________?
A. super heater
B. condenser
C. economizer
D. chimney
