Tea percolation employs___________________________?
A. Liquid-liquid extraction
B. Leaching
C. Absorption
D. None of these
Month: February 2019
The equipment used in the extraction of highly corrosive radioactive liquids is_______________________?
The equipment used in the extraction of highly corrosive radioactive liquids is_______________________?
A. Pulse column
B. Spray column
C. Mixer settler
D. Baffle tower
With increase in temperature, the solubility of gases in liquids, at fixed pressure____________________?
With increase in temperature, the solubility of gases in liquids, at fixed pressure____________________?
A. Increases
B. Decreases
C. Remain same
D. Either A. or B., depends on the system
Degree of freedom for leaching and solvent extraction process is_____________________?
Degree of freedom for leaching and solvent extraction process is_____________________?
A. 0
B. 1
C. 2
D. 3
Unit operation involved in the prilling of urea is_____________________?
Unit operation involved in the prilling of urea is_____________________?
A. Evaporation
B. Drying
C. Crystallisation
D. Both B. and C.
In physical terms, Schmidt number means _________________?
In physical terms, Schmidt number means _________________?
A. Thermal diffusivity/mass diffusivity
B. Thermal diffusivity/momentum diffusivity
C. Momentum diffusivity/mass diffusivity
D. Mass diffusivity/thermal diffusivity
At __________________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation?
At __________________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation?
A. Operating
B. Total
C. Minimum
D. Maximum permissible
In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________________ its relative saturation?
In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________________ its relative saturation?
A. Lower than
B. Higher than
C. Equal to
D. Either A. or B., depends on the mixture composition
Flash distillation is suitable for separating the constituents of a binary system, which _____________________?
Flash distillation is suitable for separating the constituents of a binary system, which _____________________?
A. Form minimum boiling azeotrope
B. Have very wide boiling points
C. Have very close boiling points
D. Form constant boiling azeotrope
In which of the following unit operations, the selectivity is an important parameter ?
In which of the following unit operations, the selectivity is an important parameter ?
A. Distillation
B. Solvent extraction
C. Absorption
D. None of these