Mass Transfer MCQs

Question 1

The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by

Accepted Answer

Both A & B

Answer

Raising the temperature

Answer

Lowering the total pressure

Answer

Neither A nor B

Question 2

Antibiotics are best handled in a

Accepted Answer

Podbielniak extractor

Answer

Sieve tray contractor

Answer

Rotating disc contactor

Answer

Pulsed column extractor

Question 3

Total reflux in a distillation operation requires minimum

Accepted Answer

Number of plates

Answer

Reboiler load

Answer

Condenser load

Answer

All of the above

Question 4

Humid volume is the total volume in m 3 of 1 kg of

Accepted Answer

Gas plus its accompanying vapour at 1 atm. and gas temperature

Answer

Vapour laden gas at 1 atm. and room temperature

Answer

Gas plus its accompanying vapour at 1 atm. and room temperature

Answer

Vapour laden gas at 1 atm. and gas temperature

Question 5

Absorption accompanied with chemical reaction is exemplified by the absorption of

Accepted Answer

SO 2 in alkaline solution

Answer

Ammonia in water

Answer

Benzol present in coke oven gas by wash oil

Answer

All of the above

Question 6

In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the

Accepted Answer

None of these

Answer

Temperature and pressure

Answer

Concentration

Answer

Nature of the constituents