During polytropic process

A. Heat transfer takes place across cylinder walls

B. Work is done

C. Steam may be wet, dry or superheated after expansion

D. All of the above

Related Questions

  1. The indicated thermal efficiency is defined as the
  2. The diameter of internal flue tubes of a Lancashire boiler is about _________ that of its shell.
  3. Which of the following statement indicates the difference between Cornish boiler and Lancashire boiler?
  4. Boiler parameters are expressed by
  5. The relative heat absorption for successively added equal areas of boiler convection heating surfaces
  6. In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke…
  7. The steam leaves the nozzle at a
  8. The efficiency of steam turbines may be improved by
  9. Parson's turbine is a
  10. In a reaction turbine, when steam flows through the moving blades,
  11. When the nozzle operates with the maximum mass flow, the nozzle is said to be
  12. A safety valve mainly used with locomotive and marine boilers is
  13. Expansion ratio is the ratio of
  14. For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has
  15. The number of drums in Benson steam generator is
  16. Reheating of steam in a turbine
  17. Stoichiometric quantity of air is the
  18. In a reaction turbine when the degree of reaction is zero, then there is
  19. Ultimate analysis of fuel is determination of percentage of
  20. Pick up the wrong statement about critical condition of steam
  21. The maximum steam pressure in a Locomotive boiler is limited to
  22. Steam in water tube boiler as compared to fire tube boiler
  23. Heating of dry steam above saturation temperature is known as
  24. All steam engines work on
  25. Which of the following is a water tube boiler?
  26. The rate of steam produced in Benson boiler is
  27. The ratio of brake power to the indicated power is known as
  28. The ratio of the clearance volume to the swept volume is called
  29. O₂ content in atmospheric air on weight basis is
  30. Maximum energy loss in a boiler occurs due to

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