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

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

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is

2000
1000
1500
2500

ANSWER DOWNLOAD EXAMIANS APP