Process Equipment and Plant Design
Spherical shaped pressure vessel is considered to be the most ideal, because it can

Withstand higher pressure for a given metallic shell thickness
Be fabricated very easily
Be designed without wind load considerations
Be supported very easily

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Process Equipment and Plant Design
In a bag filter, the pressure drop increases directly as the

Viscosity of the gas and inversely as density of the gas
Density of the gas and inversely as viscosity of the gas
Density of the gas, but is independent of the viscosity of the gas
None of these

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