Which manner is a chemical or biochemical plant not operated in?
a. Continuous
b. Batch-wise
c. Semi-continuous
d. Discontinuous
d. Discontinuous
Which of the following separation techniques is dependent on difference in volatility?
a. Distillation
b. Crystallization
c. Magnetic separation
d. Fractional crystallization
a. Distillation
What is the role of Energy-separating agent (ESA)?
a. Involves heat transfer
b. Involves mass transfer
c. Acts as an agitator
d. Is a catalyst
a. Involves heat transfer
What is the semi-permeable membrane used in separation techniques made from?
a. Animal cells
b. Plant cells
c. Egg shells
d. Natural fibers
d. Natural fibers
When is a separation process not required in a manufacturing process?
a. When there is a decomposition reaction
b. When the byproducts are in form of gases
c. When there is a complete conversion
d. When the reaction is re
c. When there is a complete conversion
Crystallization exploits difference in which factors?
a. Specific heat
b. Boiling point
c. Melting point
d. Bubble point
c. Melting point
Which of the following is NOT a disadvantage of using a mass-separating agent (MSA)?
a. Need for additional separator to remove MSA
b. Difficult design procedures
c. Possible MSA contamination
d. Need for large quantities of MSA
d. Need for large quantities of MSA
What is separation effected by in microporous membranes?
a. Difference in solubility
b. Rate of species diffusion through the pores
c. Amount of feed to the membranes
d. Number of membranes used
b. Rate of species diffusion through the pores
How is the separation of chlorine isotopes carried out?
a. Centrifugation
b. Electrodialysis
c. Electrophoresis
d. Thermal diffusion
d. Thermal diffusion
Which of the following is not a classification of biological species?
a. Bio-molecules
b. Small molecules
c. Bio-Polymers
d. Cellular particulates
d. Cellular particulates
If only 5% of Ethylene is converted to Ethylene glycol, why is there a need of separation process?
a. To feed more reactant to the reacting mixture
b. To remove the ethylene glycol formed
c. To recover the unreacted Ethylene Glycol
d. To start an intermediate reaction
c. To recover the unreacted Ethylene Glycol
What is the separation by polymer membrane?
a. Exploits the difference in volatility
b. Exploits the difference in diffusivity
c. Exploits the difference in flowability
d. Exploits the difference in permeability
d. Exploits the difference in permeability
Which separation process is used when the volatility difference is too small between the species?
a. Flash vaporization
b. Stripping
c. Extractive distillation
d. Liquid-liquid extraction
c. Extractive distillation
In which separation process is the heat of evaporation required?
a. Desublimation
b. Pervaporation
c. Crystallization
d. Reverse osmosis1
b. Pervaporation
Which separation technique is used to concentrate heavy water?
a. Centrifugation
b. Electrodialysis
c. Electrolysis
d. Thermal diffusion
c. Electrolysis
How is the Diethyl Ether removed in the manufacturing of ethanol from ethylene?
a. Directly removed
b. Crude distillation column
c. Low pressure flash drum
d. Light-ends tower
d. Light-ends tower
Which of the following is a condition of operation for biochemical plant?
a. Metallic catalyst
b. Chemical catalyst
c. Elevated temperature
d. Non-pathologic state of the organism
d. Non-pathologic state of the organism
Which of the following methods are to be applied to separate Oxygen rich components and Nitrogen rich components?
a. Crystallization
b. Zone melting
c. Magnetic separation
d. Distillation
d. Distillation
How is Oil and Hexane separated?
a. Distillation
b. Separating funnel
c. Crystallization
d. Electrophoresis
b. Separating funnel
In azeotropic distillation, why is an entrainer added?
a. To increase the boiling point of the mixture
b. To decrease the boiling point of the mixture
c. To form a minimum boiling point azeotrope
d. To form two immiscible ph
c. To form a minimum boiling point azeotrope
