Related Questions

The most economical range of absorption factor is
A 0 to 0.5
B 0 to 3
C 1.25 to 2
D 5 to 15
Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be
A 1
B > 1
C ≤ 1
In a gas-liquid absorption coloumn, for obtaining the maximum absorption efficiency
A Liquid stream should be distributed uniformly
B Gas stream should be distributed uniformly
C Both gas as well as liquid streams should be distributed uniformly
D By passing should be completely avoided
Absorption accompanied with chemical reaction is exemplified by the absorption of
A Ammonia in water
B Benzol present in coke oven gas by wash oil
C SO2 in alkaline solution
D All of the above
In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase.
A Liquid
B Gas
C Both A & B
D Neither A nor B
Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in
A Decreased solute solubility
B Large minimum liquid to gas (L/G) ratio
C Large number of trays
D All of the above
For economical operation of a nuclear plant
A Used fuel should be reprocessed
B Moderator should be used
C Coolant should be employed
D Control rods should be used
In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio.
A 1.1 to 1.5
B 1.6 to 2
C 2.2 to 2.6
D 2.7 to 3
The ratio of the depth of flow to the hydraulic radius for the most economical trapezoidal section, in open channel flow is
A 0.5
B 1
C 1.5
D 2
The ratio of width to depth for the most economical rectangular section in open channel flow is
A 0.5
B 1
C 1.5
D 2

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