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Mass Transfer

Mass Transfer
The dew point of a saturated gas phase equals the __________ temperature.

Room
Gas
None of these
Wet bulb

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Mass Transfer
NSc/NPr is called the

Sherwood number
Stantan number
Lewis number
Psychrometric ratio

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Mass Transfer
Which of the following employs an accessory known as 'drift eliminator' ?

Mechanical draft cooling tower
Rotary dryer
Multiple effect evaporator
Rotating disc contactor

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Mass Transfer
Dried finished product sampled from various parts of a __________ dryer exhibits non-uniformity in the moisture content.

Tray
Freeze
None of these
Rotary

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Mass Transfer
For gas absorption, low viscosity solvents are preferred, because of their

Low pumping pressure drop
Better flow characteristics
All of these
Rapid absorption rates

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Mass Transfer
According to Chilton-Colburn analogy for mass transfer, NSt.NSc2/3 is equal to

F
1/f
F/2
2f

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