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Mass Transfer

Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Rotary
Freeze
Drun
Cylinder

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Mass Transfer
In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit)

Neither A nor B
Straight
Parallel
Both A & B

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Mass Transfer
Which of the following is used for the concentration of rubber latex?

Short tube evaporator
Agitated film evaporator
Calendria
Long tube vertical evaporator

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Mass Transfer
Dry bulb temperature of unsaturated air is more than its __________ temperature.

Dew point
Neither A nor B
Both A & B
Wet bulb

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Mass Transfer
The temperature of water cooled in cooling tower is always __________ temperature of entering air.

Less than the wet bulb
Equal to the wet bulb
More than the wet bulb
Equal to the dry bulb

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Mass Transfer
Which of the following remains constant during evaporative cooling process with recirculated water supply?

Relative humidity
None of these
Wet bulb temperature
Partial pressure of vapour

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