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
Related Mcqs:
- 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 - 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 - Steam turbines commonly used in steam power station are__________?
A. condensing type
B. non-condensing type
C. none of the above - Steam pressure in a steam power station, which is usually kept now-a-days is of the order of____________?
A. 20 kgf/cm2
B. 50 kgf/cm2
C. 100 kgf/cm2
D. 150 kgf/cm2 - Rankine cycle operating on low pressure limit of p1 an 1 high pressure limit of p2__________?
A. has higher the renal efficiency than the carnot cycle operating between same pressure limits
B. has lower the”nal efficiency than carnot cycle operating between same pressure limit?
C. has same thermal efficiency as carnot cycle operating between same pressure limits
D. may be more or less depending upon the magnitude of p1 and p2 - In Rankine cycle the work output from the turbine is given by__________?
A. change of internal energy between inlet and outlet
B. change of enthaply between inlet and outlet
C. change of entropy between inlet and outlet
D. change of temperature between inlet and outlet - 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 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 - 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
