Process Equipment and Plant Design
If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times.

None of these
Increase by 21.6
Increase by 1.8
Decrease by 22

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

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