Mass Transfer
HETP is numerically equal to HTU, only when the operating line

Lies above the equilibrium line
Is far from the equilibrium line
And equilibrium lines are parallel
Lies below the equilibrium line

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Inside the distillation column, the

Driving force for the vapour flow is the pressure drop
Liquids are not always at their bubble points
Pressure increases gradually from bottom to the top of the column
None of these

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Flights in a rotary dryer are provided to

Lift and shower the solids thus exposing it thoroughly to the drying action of the gas
Increase the residence time of the solid
Reduce the residence time of solid
None of these

ANSWER DOWNLOAD EXAMIANS APP