The cylindrical shell of a Lancashire boiler has diameter from

A. 1 to 2 m

B. 1.25 to 2.25 m

C. 1.5 to 2.5 m

D. 1.75 to 2.75 m

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  1. Which of the following is required for a steam condensing plant?
  2. During polytropic process
  3. The shell of the Cochran boiler is made hemispherical
  4. Throttle governing of steam engines is a method of controlling the engine output by varying
  5. The aim of a compound steam engine is
  6. The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or…
  7. The indicated thermal efficiency is defined as the
  8. Which is not correct statement about effect of sulphur in fuel?
  9. In a throttling process
  10. The diameters of fire tubes and superheater tubes in locomotive boiler are
  11. The expansion of steam in a nozzle follows
  12. Gusset stays in a boiler are provided to
  13. Steam engine operates on
  14. The behaviour of coal in a furnace is determined by
  15. O₂ content in atmospheric air on volume basis is
  16. The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known…
  17. Expanding steam to a very low pressure (high vacuum) in steam engines is
  18. The proximate analysis of fuel lists
  19. A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls…
  20. The steam leaves the nozzle at a
  21. Latent heat of dry steam at atmospheric pressure is equal to
  22. In impulse turbines, when friction is neglected, the relative velocity of steam at outlet tip of the…
  23. Willians line follows the law (where b = A constant representing the shape of the Willians line, a =…
  24. The maximum heat loss is a boiler occurs due to
  25. The reheat factor is the ratio of the
  26. The safety valve on boiler drum compared to safety valve on superheater is set at
  27. The basic job of feed water treatment in boilers is to overcome the problem of
  28. The relative efficiency is defined as the
  29. The efficiency of steam turbines may be improved by
  30. The friction in the nozzle __________ exit velocity of steam.