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.Management Sciences
Category: Mass Transfer
Mass transfer co-efficient of liquid is____________________?
A. Affected more by temperature than that for gases
B. Affected much less by temperature than that for gases
C. Not affected by the temperature
D. None of these
Which of the following processes is not an example of adsorption applied to gaseous separations ?
A. Recovery of valuable solvent vapors from dilute mixture with air and other gases
B. Dehumidification of air and gas
C. Removal of objectionable odour and impurities from industrial gases
D. Decolouration of yellow glycerine
Which of the following is directly concerned with Psychrometry ?
A. Lewis relationship
B. Galileo number
C. Weber number
D. Dean number
The operating cost of a distillation column at minimum reflux ratio is____________________?
A. Minimum
B. Maximum
C. Infinite
D. Zero
Pick out the wrong statement?
A. Mass transfer co-efficient does not account for gas-liquid diffusion
B. Diffusion co-efficient and mass transfer co-efficient are not same in any mass transfer
operation
C. Contacting cold vapor-gas mixture with hot liquid exemplifies humidification process
D. Contacting cold liquid with warm vapor-gas mixture exemplifies dehumidification process
The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an ___________________?
A. Pure component
B. Binary mixture
C. Ternary mixture
D. Insoluble binary system
If moisture content of solid on dry basis is X, then the same on wet basis is____________________?
A. X/(X + 1)
B. X/(1 – X)
C. (1 + X)/X
D. (1 – X)/X
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