The modern steam turbines are___________?

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. Reheat factor in steam turbines depends on______________?

   A. exit pressure only B. stage efficiency only C. initial pressures and temperature only D. all of the above...

3. In steam turbines the reheat factor_____________?

   A. increases with the increase in number of stages B. decreases with the increase in number of stages C. remains same irrespective of number of stages D. none of the above...

4. Steam turbines are governed by the following methods_____________?

   A. Throttle governing B. Nozzle control governing C. By-pass governing D. all of the above...

5. 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...

6. 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...

7. 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...

8. 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...

9. 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...

10. For the safety of a steam boiler the number of safety valves fitted are____________?

    A. four B. three C. two D. one...