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In natural circulation type boiler,

A. Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum

B. Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam

C. Feed pump is employed to supplement natural circulation in water wall type furnace

D. Water is converted into steam in one. Pass without any recirculation

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  3. Which is not correct statement about the function of furnace?
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  5. By compounding the expansion of steam in two or more cylinders, the length of stroke
  6. The rate of steam produced in Benson boiler is
  7. Coke is produced by
  8. Tertiary air is the air used to
  9. On Millier chart, the constant pressure lines
  10. A nozzle is said to be a convergent nozzle
  11. The pressure at which latent heat of vaporisation of water is zero, is
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  13. The fire tubes in a Cochran boiler usually have _________ diameter.
  14. The diameter of Cornish boiler is of the order of
  15. The velocity of steam at throat of the nozzle is __________ the velocity of sound.
  16. Superheating of steam is done at
  17. The friction in the nozzle __________ exit velocity of steam.
  18. The maximum heat loss is a boiler occurs due to
  19. The function of a flywheel is
  20. By compounding the expansion of steam in two or more cylinders, the ratio of expansion
  21. Clearance ratio is the ratio of
  22. The cylindrical shell of a Lancashire boiler has diameter from
  23. Fire tube boilers are
  24. An economiser is installed in a boiler primarily to
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  26. Water boils when its vapour pressure
  27. Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication…
  28. Which of the following is a fire tube boiler?
  29. De-Laval turbine is a
  30. The relative heat absorption for successively added equal areas of boiler convection heating surfaces