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

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Bubble cap tray is the most commonly used tray in large distillation column, because

None of these
It eliminates the foaming and entrain-ment tendency during operation
Of its flexibility and nearly constant efficiency under varying conditions of operation
It incurs less pressure drop as compared to any other try designed for the same duty

ANSWER DOWNLOAD EXAMIANS APP