A. 20 kgf/cm2
B. 50 kgf/cm2
C. 100 kgf/cm2
D. 150 kgf/cm2
Related Mcqs:
- Steam turbines commonly used in steam power station are__________?
A. condensing type
B. non-condensing type
C. none of the above - The ratio of exit pressure to inlet pressure for maximum mass flow rate per unit area of steam through a nozzle when steam is initially dry saturated is___________?
A. 0.6
B. 0.578
C. 0.555
D. 0.5457 - 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 - A steam power station requires space______________?
A. equal to diesel power station
B. more than diesel power station
C. less than diesel power station - The overall efficiency of a steam power station is ________ its thermal efficiency.
A. less than
B. equal to
C. greater than
D. none of the above - Rankine cycle efficiency of a good steam power plant may be in the range of____________?
A. 15 to 20 per cent
B. 35 to 45 per cent
C. 70 to 80 per cent
D. 90 to 95 per ceut - At low value of power factor, the cost of generation of a power station will be____________?
A. high
B. low
C. remain same
D. none of the above - The isentropic expansion of steam through nozzle for the steam initially superheated at inlet is approximated by equation__________?
A. pvls=C
B. pv1126 = C
C. pv1A = C
D. pv = C - The isentropic expansion of steam through nozzle for the steam initially dry saturated at inlet is approximated by equation?
A. pv = C
B. pv1A = C
C. pv1i = C
D. pv - 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
