The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the

A. Blades are equiangular

B. Blade velocity coefficient is unity

C. Blades are equiangular and frictionless

D. Blade solidity is 0.65

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. Cochran boiler is a
  2. The shell diameter of a Locomotive boiler is
  3. The friction present between the steam and the nozzle surfaces reduces the heat drop by
  4. The basic purpose of drum in boiler is to
  5. Locomotive type' boiler is
  6. When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as
  7. In fire tube boilers
  8. Lancashire boiler is
  9. Lancashire boiler is a
  10. The critical pressure ratio for gases is
  11. De-Laval turbine is a
  12. Water tube boilers are those in which
  13. In an ideal impulse turbine, the
  14. The diameter of tubes for natural circulation boiler as compared to controlled circulation boilers is
  15. The saturation temperature of steam with increase in pressure increases
  16. The velocity of steam at throat of the nozzle is __________ the velocity of sound.
  17. Which is not correct statement about effect of sulphur in fuel?
  18. The effect of friction in the nozzle __________ dryness fraction of steam.
  19. 1 kg.m is equal to
  20. In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is
  21. In water wall furnace, the heat is transferred to the water walls by
  22. In an impulse turbine, steam expands
  23. Fire tube boilers are those in which
  24. Pulverised fuel is used for
  25. The variation of steam pressure in the nozzle depends upon
  26. The maximum discharge through a chimney occurs when the height of chimney is
  27. The high pressure and low pressure cylinders in a receiver type compound engine are regarded as having…
  28. The diameter of superheated tubes in a locomotive boiler is
  29. Steam in water tube boiler as compared to fire tube boiler
  30. The flow through a nozzle is regarded as