A. Across
B. Above
C. Both A. & B.
D. Neither A. nor B.
Related Mcqs:
- The ratio of Murphree plate efficiency to point efficiency is 1 in a ______________________ flow model?
A. Plug
B. Perfectly mixed
C. Both A. & B.
D. Neither A. nor B. - The ratio of Murphree plate efficiency to point efficiency is always > 1 in a _______________ flow model?
A. Plug
B. Perfectly mixed
C. Both A. & B.
D. Neither A. nor B. - Plate efficiency in a distillation column is reduced due to the ______________ of liquid?
A. Entrainment
B. Foaming
C. Weeping & dumping
D. All A., B. & C. - Plate efficiency in a distillation column is reduced due to the ______________________ of liquid?
A. Entrainment
B. Foaming
C. Weeping & dumping
D. All A., B. & C. - If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are_______________?
A. Straight
B. Parallel
C. Both A. & B.
D. Neither A. nor B. - In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at ________________ reflux ?
A. Total
B. Minimum
C. Operating
D. Maximum permissible - Can the efficiency of a plate in the distillation tower be greater than 100% ?
A. Yes
B. Normally not; but is possible if infinite number of plates are put
C. Never
D. Yes; if the reflux ratio is maximum - Can the efficiency of a plate in the distillation tower be greater than 100% ?
A. Yes
B. Normally not; but is possible if infinite number of plates are put
C. Never
D. Yes; if the reflux ratio is maximum - If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be _______________ percent?
A. 100
B. > 100
C. < 100
D. None of these - Packed column distillation is limited to the column _____________ metres?
A. Height < 6
B. Diameter < 0.6
C. Both A. & B.
D. Neither A. nor B.
