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Mass Transfer

Mass Transfer
For continuous drying of grannular or crystalline material, the dryer used is the __________ dryer.

Rotary
None of these
Tray
Tunnel

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Mass Transfer
Leaching of sugar from sugar beets is done by

Hexane
Lime water
Hot water
Dilute H₂SO₄

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

Twice
Half
More than
Equal to

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

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

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Mass Transfer
Which of these columns incurs the lowest pressure drop?

Packed column (with dumped packing)
Packed column (with stacked packing)
Bubble plate column
Pulse column

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

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

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