Process Equipment and Plant Design
For a given design of bubble cap, the number of bubble caps to be used per tray is set by the

Plate spacing
All of these
Diameter of the column
Allowable gas velocity through the slots

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

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