A steam power stations basically work on the______________?

Related Mcqs:

1. Steam turbines commonly used in steam power station are__________?

   A. condensing type
   B. non-condensing type
   C. none of the above

2. 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

3. A gas turbine basically work on

   A. Carnot cycle
   B. Rankin cycle
   C. Brayton cycle
   D. Dual cycle

4. 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

5. 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

6. 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

7. 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

8. 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

9. A steam power station requires space______________?

   A. equal to diesel power station
   B. more than diesel power station
   C. less than diesel power station

10. 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