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The diameter of cylindrical shell of the Lancashire boiler is of the order of

A. 1 to 1.25m

B. 1 to 1.75 m

C. 2 to 4 m

D. 1.75 to 2.75 m.

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  18. The draught may be produced by a
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  20. Sulphur content of fuels is very important to the plant operators because it
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  23. The state of vapour under saturation condition is described by
  24. Lancashire boiler is a
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  29. The economiser is used in boilers to
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