Chemical Engineering MCQs

A. Centrifugal
B. Packed
C. Plate
D. None of these

A. Packed column (with stacked packing)
B. Packed column (with dumped packing)
C. Bubble plate column
D. Pulse column

A. Carbon dioxide from gaseous stream using alkaline solution
B. Benzol from coke oven gas using solar oil/wash oil
C. Ammonia from coke oven gas using refrigerated water
D. Tar from coke oven gas in primary gas coolers using chilled water

A. Water-alcohol
B. Methyl alcohol-acetone
C. Butyl acetate-water
D. None of these

A. Sensible heat changes are negligible compared with latent heat changes
B. Molar latent heats of all components are equal
C. Heat of mixing is negligible
D. None of these

A. Bubble-cap column
B. Sieve-plate column
C. Packed column (stacked)
D. Randomly packed column

A. Operating line lies above the equilibrium line
B. Operating line lies below the equilibrium line
C. Both operating and equilibrium lines are parallel
D. Pressure drop in the column is very high

A. Form a low boiling azeotrope with one of the constituents of the mixture
B. Form a new azeotrope of low relative volatility with one of the constituents of the mixture
C. Have high latent heat of vaporisation
D. Have high viscosity to provide high tray efficiency

A. Decreases in winter
B. Increases in winter
C. Increases in summer
D. None of these

A. Flooding
B. Gas viscosity
C. Liquid density
D. Liquid hold up