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The object of producing draught in a boiler is

A. To provide an adequate supply of air for the fuel combustion

B. To exhaust the gases of combustion from the combustion chamber

C. To discharge the gases of combustion to the atmosphere through the chimney

D. All of the above

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  7. Lancashire boiler is
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  16. The Parsons' reaction turbine has
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  18. Coke is produced by
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  20. The shell diameter of a Locomotive boiler is
  21. The efficiency of the plant __________ with the mechanical draught.
  22. A condenser in a steam power plant
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  24. The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where…
  25. In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder…
  26. The fittings mounted on the boiler for its proper and safe functioning is a
  27. In a Tandem type compound engine, the high pressure and low pressure cylinders
  28. For a Parson's reaction turbine, if α₁ and α₂ are fixed blade angles at inlet…
  29. The discharge is __________ at critical pressure.
  30. The economiser is used in boilers to