A. √T
B. T
C. T1.5
D. T3
Mass Transfer
Mass Transfer
A. Tray
B. Rotary
C. Fluidised bed
D. None of these
A. Dry those materials which have very high unbound moisture content
B. Reduce drying temperature
C. Increase drying temperature
D. Dry materials having high bound moisture content
A. Pr = Sc; percentage change in heat and mass transfer flux will be the same for a given change
in the degree of turbulence
B. Pr = Sc = 1; total mass, momentum and thermal diffusivity will be the same
C. Both A. and B.
D. Pr = Sc; there won’t be any change in heat and mass transfer flux with changes in degree of
turbulence
A. 0.0
B. 0.2
C. 0.4
D. 1.0
A. Increases
B. Decreases
C. Remains unchanged
D. Depends on the pressure of the system
A. Vapour is in equilibrium with the liquid at the gas temperature
B. Vapour is in equilibrium with the liquid at the room temperature
C. Partial pressure of vapour equals the vapour pressure of the liquid at room temperature
D. None of these
A. Specific humidity
B. Partial pressure of vapour
C. Both A. and B.
D. Neither A. nor B.
A. Bubble the gas through liquid
B. Spray the liquid on gas stream
C. Either A. or B. would suffice
D. None of these
A. Parallel
B. Straight
C. Both parallel and straight
D. Neither parallel nor straight
