Process Equipment and Plant Design
When one of the fluids is highly corrosive and has fouling tendency, it should

Flow at a very slow velocity
Flow outside the tube, when the flow is counter-current and inside the tube when the flow is co-current
Perferably flow outside the tube
Preferably flow inside the tube for its easier internal cleaning

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP