The critical pressure ratio for initially superheated steam is __________ as compared to initially dry saturated steam.

A. More

B. Less

C. Same

D. None of these

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  1. Blading efficiency is also known as
  2. The ratio of total useful heat drop to the total isentropic heat drop, is called
  3. Which of the following substance will have same percentage in both proximate and ultimate analysis?
  4. In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder…
  5. The diameter of flue tube in a Cornish boiler is _________ that of the shell.
  6. In a reaction turbine
  7. The critical pressure ratio for initially dry saturated steam is
  8. A device in which some portion of waste heat of flue gases is recovered to heat the air before it passes…
  9. In natural circulation type boiler,
  10. The missing quantity per stroke is equal to
  11. The dry saturated steam at very high pressure (150200 kg/cm²) when throttled to atmosphere will…
  12. Water tube boilers are
  13. There is always some steam left in the clearance space from the previous stroke. This steam left in…
  14. The overall efficiency of thermal power plant is
  15. Equivalent evaporation of water is the evaporation for a feed water supply at 100°C
  16. The expansion of steam, as it flows over the blades in reaction turbine, represents
  17. In which of the following boilers, the draught in furnace is increased by utilising exhaust steam from…
  18. Which of the following statement indicates the difference between Cornish boiler and Lancashire boiler?
  19. Willian's law states that the steam consumption per hour provided with a throttled governor is proportional…
  20. Adiabatic process is
  21. Cut-off ratio is the ratio of
  22. In order to obtain superheated steam, a superheater is added in an existing boiler. As as result, furnace…
  23. Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean…
  24. A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg…
  25. In a Tandem type compound engine, the high pressure and low pressure cylinders
  26. In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is
  27. Which of the following statement is wrong?
  28. The length of Cornish boiler is of the order of
  29. The length of shell of a Locomotive boiler is
  30. The friction present between the steam and the nozzle surfaces reduces the heat drop by