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Mass Transfer

Mass Transfer
Which of the following is the most commonly used leaching solvent in vegetable oil industry?

Liquid SO₂
Furfurol
Phenol
Hexane

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Mass Transfer
Sticky material can be dried in a __________ dryer.

None of these
Fluidised bed
Tray
Rotary

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Mass Transfer
Heat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer.

Freeze
Indirect tray
None of these
Spray

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Mass Transfer
Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the

Thermal diffusivity
Kinematic viscosity
Volumetric diffusivity
Mass transfer co-efficient

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Mass Transfer
In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

Approach is 10°F
Both A & B
Neither A nor B
Range is 15°F

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Mass Transfer
The operating cost of a distillation column at minimum reflux ratio is

Infinite
Zero
Maximum
Minimum

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