Process Equipment and Plant Design
At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure

Remains same
Decreases
Increases
May increase or decrease depending upon the solubility of the gas in the liquid

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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

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

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