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The function of a piston in a steam engine is

A. To guide motion of the piston rod and to prevent it from bending

B. To transfer motion from the piston to the crosshead

C. To convert heat energy of the steam into mechanical work id) to exhaust steam from the cylinder at proper moment

D. None of these

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  1. In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of
  2. The change in internal energy in steam engines equals to
  3. Which of the following substance will have same percentage in both proximate and ultimate analysis?
  4. The efficiency of the plant __________ with the mechanical draught.
  5. In a nozzle, whole frictional loss is assumed to occur between
  6. On Mollier chart, flow through turbine is represented by
  7. The diameter of Cornish boiler varies from
  8. The relative heat absorption for successively added equal areas of boiler convection heating surfaces
  9. The critical pressure ratio for initially dry saturated steam is
  10. The effect of friction in the nozzle __________ dryness fraction of steam.
  11. In regenerative air preheaters, the heat is transferred
  12. Which of the following statement is correct?
  13. Curtis turbine is a
  14. The critical pressure ratio for gases is
  15. In a Woolf type compound engine, the high pressure and low pressure cylinders
  16. Equivalent evaporation of water is the evaporation for a feed water supply at 100°C
  17. The number of drums in Benson steam generator is
  18. For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has
  19. The effect of friction on the flow of steam through a nozzle is to
  20. The variation of steam pressure in the nozzle depends upon
  21. Caking coals are those which
  22. The expansion of steam in a nozzle follows
  23. The diameter of internal flue tubes in a Lancashire boiler compared to its shell is
  24. All steam engines work on
  25. Relative percentage of heat absorbed through the heat transfer of (i) Furnace water wall (ii) Boiler…
  26. Spontaneous combustion is a phenomenon in which
  27. Rateau turbine is
  28. A safety valve usually employed with stationary boilers is
  29. The diameter of internal flue tubes of a Lancashire boiler is about _________ that of its shell.
  30. The mechanical draught _________ with the amount of smoke.