Chemical Engineering MCQs

A. Blending miscible liquids
B. Non-flowing powder and thin pastes
C. Bath mixing
D. Continuous mixing

A. Jet mills
B. Fluid energy mill
C. Micronizer
D. All a., b. and c.

A. Froude number is independent for the curves between power number and reynolds number in
BafFled system
B. Power number becomes independent of impellers reynolds number at high reynolds number,
But is dependent on the geometry of the impeller

A. Reynold’s
B. Froude
C. Both a. & b.
D. Neither a. nor b.

A. Constant rate
B. Varying pressure
C. Varying rate
D. Constant pressure

A. Cleaning of coal
B. Concentration of iron ore
C. Concentration of pyrites
D. Water treatment

A. Bag filter
B. Electrostatic precipitator
C. Cyclone separator
D. Wet scrubber

A. Plate and frame filter
B. Rotary vacuum filter
C. Batch basket centrifuge
D. None of these

A. 1
B. 1.5
C. 2
D. 2.5

A. (1/2π). √(g/r)
B. (1/π). √(g/r)
C. ½ √(g/r)
D. 2π. √(g/r)