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
Demand factor is defined as___________?
A. average load/maximum load.
B. maximum demand/connected load
C. connected load/maximum demand.
D. average load x maximum load
Which of the following power plant usually offer highest maintenance cost___________?
A. Nuclear power plants
B. Hydro-electric power plants
C. Thermal power plants
D. Diesel engine power plant
The efficiency of chimney is approximately______________?
A. 80%
B. 40%
C. 20%
D. 0.25%
Which of the following power plant has least efficiency_________?
A. Nuclear power plant
B. Hydro power plant
C. Steam power plant
D. Diesel power plant
In regenerative cycle feed water is heated by_____________?
A. exhaust gases
B. heaters
C. draining steam from the turbine
D. all above
In a surface condenser if air is removed, there is___________?
A. fall in absolute pressure maintained in condenser
B. rise in absolute pressure maintained in condenser
C. no change in absolute pressure in the condenser
D. rise in temperature of condensed steam