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Mass Transfer

Mass Transfer
Boiling point diagram is not affected by the ambient

Both B and C
Temperature
Pressure
Humidity

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Mass Transfer
Prandtl number for water at 20°C is about

70
150
0.7
7

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Mass Transfer
Mass transfer co-efficient varies as DAB0.5, according to the __________ theory.

Film
Surface renewal
None of these
Penetration

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

Freeze
None of these
Spray
Indirect tray

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Mass Transfer
Operating velocity in a packed tower is usually __________ the flooding velocity.

More than
Equal to
Half
Twice

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Mass Transfer
The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

None of these
Induced draft cooling tower
Spray chamber
Natural draft cooling tower

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