Separation Processes Questions and Answers – The MSMPR Crystallization Model

This set of Separation Processes Questions and Answers for Aptitude test focuses on “The MSMPR Crystallization Model”.

1. In crystallization, solvent should dissolve large amount of solute at:
a) Room temperature
b) Boiling point
c) Freezing point
d) Slip melting point
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2. Insoluble impurities during crystallization are removed by:
a) Decantation
b) Filtration
c) Distillation
d) Fractional crystallization
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3. The crystals obtained in crystallization are dried by:
a) Dryer
b) Oven
c) Filter paper
d) Exposing to sun
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4. Which of the following is not an assumption of MSMPR model?
a) Perfect mixing of the magma
b) No crystal breakage
c) Continuous, steady-flow, steady-state operation
d) Crystals are of various sizes.
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5. What is the number of crystals per unit mass of crystals if
Volume shape factor f_v= 0.5
Density of particle= 5kg/m³
Characteristic size of crystal L= 5
a) 0.01
b) 0.7
c) 0.6
d) 0.8
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6. What is the number of crystals per unit mass of crystals if
Volume shape factor f_v= 0.5
Density of particle= 5kg/m³
Characteristic size of crystal L= 0.05
a) 0.01
b) 0.7
c) 0.6
d) 100000
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7. What is the number of crystals per unit mass of crystals if
Volume shape factor f_v= 0.5
Density of particle= 5kg/m³
Characteristic size of crystal L= 0.78
a) 1.56
b) 2.34
c) 2.56
d) 0.8
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8. What is the number of crystals per unit mass of crystals if
Volume shape factor f_v= 0.5
Density of particle= 5kg/m³
Characteristic size of crystal L= 0.56
a) 5.67
b) 6.78
c) 7.11
d) 9.56
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9. What is the number of crystals per unit mass of crystals if
Volume shape factor f_v= 0.5
Density of particle= 5kg/m³
Characteristic size of crystal L= 0.67
a) 1.56
b) 7.89
c) 4.22
d) 4.15
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10. What is the nucleation rate if
Mass of production of crystals C=0.5kg
Volume shape factor f_v= 0.5
Density of particle= 5kg/m³
Characteristic size of crystal L= 0.5
volume of mother liquor in magma V= 1m³
a) 0.5
b) 1.5
c) 1.8
d) 2.7
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11. What is the nucleation rate if
Mass of production of crystals C=0.5kg
Volume shape factor f_v= 0.5
Density of particle= 5kg/m³
Characteristic size of crystal L= 0.5
volume of mother liquor in magma V= 0.5m³
a) 5.4
b) 3.6
c) 1.8
d) 2.7
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12. What is the nucleation rate if
Mass of production of crystals C=0.5kg
Volume shape factor f_v= 0.5
Density of particle= 5kg/m³
Characteristic size of crystal L= 0.6
volume of mother liquor in magma V= 1m³
a) 1.45
b) 1.5
c) 1.07
d) 1.04
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13. What is the nucleation rate if
Mass of production of crystals C=0.5kg
Volume shape factor f_v= 0.5
Density of particle= 0.5kg/m³
Characteristic size of crystal L= 0.5
volume of mother liquor in magma V= 1m³
a) 0.5
b) 15
c) 1.8
d) 18
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14. What is the nucleation rate if
Mass of production of crystals C=10kg
Volume shape factor f_v= 0.5
Density of particle= 5kg/m³
Characteristic size of crystal L= 0.5
volume of mother liquor in magma V= 1m³
a) 9
b) 18
c) 180
d) 36
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Sanfoundry Global Education & Learning Series – Separation Processes.

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