A. increase the performance of the condenser
B. increase the efficiency of the plant
C. increase efficiency of the turbine
Related Mcqs:
- Mercury is a choice with steam in binary vapour cycle because it has____________?
A. higher critical temperature and pressure
B. higher saturation temperature than other fluids
C. relatively low vapourisation pressure
D. all above - Primary air is that air which is used to_____________?
A. reduce the flame length
B. increase the flame length
C. transport and dry the coal
D. provide air around burners for get¬ting optimum combustion - 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 - 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 - The draught produced, for a given height of the chimney and given mean temperature of chimney gases_______________?
A. decreases with increase in outside air temperature
B. increases with increase in outside air temperature
C. remains the same irrespective of outside air temperature
D. may increase or decrease with increase in outside air temperature - The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is__________?
A. 0.555
B. 0.578
C. 0.5457
D. 0.6 - In a shell and tube surface condenser____________?
A. steam and cooling water mix to give the condensate
B. cooling water passes through the tubes and steam surrounds them
C. steam passes through the cooling tubes and cooling water surrounds them
D. all of the above varying with situation - Load center in a power station is___________?
A. center of coal fields
B. center of maximum load of equipments
C. center of gravity of electrical system - Reheat factor is the ratio of_____________?
A. isentropic heat drop to useful heat drop
B. adiabatic heat drop to isentropic heat drop
C. cumulative actual enthalpy drop for the stages to total is isentropic enthalpy heat drop - Which of the following power plant has highest Depreciation charges?
A. Thermal plant
B. Diesel plant
C. Hydroelectric plant
D. All have same
