Process Equipment and Plant Design
Mc Cable Thiele method used for finding theoretical stages in a distillation column assumes that the

All of these
Liquid/vapor loading across the column remains constant
Sensible heat differences are small, because the temperature changes from tray to tray is small
Trouton's rule is applicable

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Process Equipment and Plant Design
A head comprises of straight flange section, corner torus, section and central dished section. Crown radius and knuckle radius in a head is related respectively to the

Central dished section and straight flange section
Central dished section and corner torus section
Straight flange section and corner torus section
Corner torus section and central dished section

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Process Equipment and Plant Design
Pick out the wrong statement pertaining to 'Horton sphere' used for the storage of liquid ammonia.

Diameter of Horton sphere is normally 6 to 25 metres and it is supported by 6 to 12 nos. tubular or rolled section column
Horton sphere is used for the storage of liquid at sub-zero temperature at very high pressure upto 200 kg/cm²
Horton sphere is used for the storage of gases and volatile liquid at a moderate pressure of 1 to 10 kg/cm²
Thickness of spherical shell is half that of the cylinderical vessel under same operating pressure condition. Besides, the ratio of surface area to volume is less for sphere than any other shape ; hen

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