Unsaturated air (with dry and wet bulb temperatures being 35 and 25°C respectively) is passed through water spray chamber maintained at 35°C. The air will be__________________?
A. Cooled
B. Humidified
C. Both A. & B.
D. Dehumidified
A. Cooled
B. Humidified
C. Both A. & B.
D. Dehumidified
A. Flux = Co-efficient/concentration difference
B. Co-efficient = Flux/concentration difference
C. Flux=concentration difference/coefficient
D. None of these
Mass transfer co-efficient is defined as__________________? Read More »
Mass Transfer A. Freeze
B. Through circulation
C. Rotary vacuum
D. Tray
Large quantity of silica gel is normally dried in a _________________ dryer? Read More »
Mass Transfer A. 0.5 to 0.8
B. 0.8 to 1.2
C. 1.25 to 2.0
D. 2.5 to 3.5
A. 6.89
B. 8.89
C. 10
D. 8.25
A. Rotary
B. Tray
C. Freeze
D. None of these
A. Temperature is 100°C
B. Temperature is more than 100° C
C. Product must be immiscible with water
D. Temperature is higher than the boiling point of either component
In steam distillation, the _____________________? Read More »
Mass Transfer A. Spray dryer
B. Drum dryer
C. Rotary dryer
D. Dielectric dryer
A slurry is to be dried to produce flaky solid. Which dryer would you recommend ? Read More »
Mass Transfer A. Dry bulb temperature
B. Partial pressure of vapour
C. Wet bulb temperature
D. None of these
Which of the following parameters remains constant during chemical dehumidification ? Read More »
Mass Transfer A. Cold water
B. Hot water
C. Dilute hot caustic solution
D. Naphtha
Coffee is prepared from coffee beans by leaching with____________________? Read More »
Mass Transfer