Mass Transfer MCQs
Practice free Mass Transfer multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 681 questions — no login required.
Question 100hard
Which of the following is not fixed by the process requirements, in the design of absorbers?
Question 101hard
HETP is numerically equal to HTU, only when the operating line
Question 102hard
The drying time between fixed moisture content within diffusion controlled 'falling rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid)
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Question 103hard
The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )
Question 104hard
If the specific heats of a gas and a vapor are 0.2KJ/Kg.°K and 1.5 KJ/Kg.°K respectively, and the humidity is 0.01; the humid heat in KJ/°Kg. is
Question 105hard
In case of constant underflow extraction operation, the __________ at all solute concentration.
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Question 106hard
Binary distillation involves the mass transfer by __________ at the gas-liquid interface.
Question 107hard
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.
Question 108hard
The temperature of water cooled in cooling tower is always __________ temperature of entering air.