Chemical Engineering MCQs

A. Natural draft cooling tower
B. Induced draft cooling tower
C. Spray chamber
D. None of these

A. Hot cupric oxide
B. Heated charcoal
C. Cold ca(oh)2
D. Alumina

A. Above which it will always become damp
B. Below which it will always stay dry
C. Both a. and b.
D. Above which it will always become dry and below which it will always stay damp

A. Low reflux ratio
B. Less number of trays
C. Small cross-section column
D. High reflux ratio

A. The ratio of number of ideal plates to actual plates
B. The ratio of number of actual plates to ideal plates
C. Same as the murphree efficiency
D. Always more than the point efficiency

A. Molecular velocity only
B. Pore radius of the catalyst only
C. Molecular mean free path only
D. Molecular velocity and pore radius of the catalyst

A. Pressure
B. Temperature
C. Nature of the components
D. None of these

A. Viscosity with concentration
B. Degree of ideality of the solution
C. Both a. and b.
D. Neither a. nor b.

A. Parallel
B. Straight
C. Both parallel and straight
D. Neither parallel nor straight

A. Bubble the gas through liquid
B. Spray the liquid on gas stream
C. Either a. or b. would suffice
D. None of these