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WorksheetsChemrane
Total questions: 10
Worksheet time: 8mins
Which type of filtration is used in removing hardness?
(a)
Which method is used to remove yeast?
(a)
What is concentration polarization modulus?
Cb/Cm
Cb*Cm
Cb-Cm
None of these
What is the other name of diffusion dialysis?
Donnan dialysis
Donnann dialysis
Doonnan dialysis
Dhonnan dialysis
Which one is an asymmetric membrane?
Which method is used for the concentration of fruit juice?
(a)
Which method is not employed in the preparation of asymmetric membrane?
Precipitation by cooling
Track etching
Precipitation by evaporation
Precipitation by immersion in a solvent
What is the molar transmembrane flux of species if
Permeability P= 10 units
Membrane thickness l= 10units
Driving force = 600units
500
200
400
600
What is a composite membrane?
Same as symmetric membrane
Same as asymmetric membrane
Asymmetric membrane cast on a support
Symmetric membrane running perpendicular to asymmetric membrane
The SDI measures:
microbiological water quality
scale-forming tendencies of the water
colloidal matter in the water
fouling potential of suspended solids
