Chemical Engineering MCQs

6108 MCQs  (Page 194 of 611)

Attempt Chemical Engineering Quiz
Cox chart is useful in the design of___________________?
A. Distillation column
B. Evaporator
C. Dryer
D. Crystalliser
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Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the ________________ number?
A. Sherwood
B. Schmidt
C. Peclet
D. Stanton
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Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of__________________?
A. Mass diffusivity to momentum diffusivity
B. Thermal diffusivity to mass diffusivity
C. Momentum diffusivity to thermal diffusivity
D. None of these
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Agitator is provided in a crystalliser for____________________?
A. Avoiding deposition on cooler surfaces
B. Formation of nuclei
C. Crystal growth
D. All a., b. and c.
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Adsorption is a unit operation which generally involves _______________ systems?
A. Liquid-solid
B. Gas-solid
C. Fluid-solid
D. Solid-solid
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Molarity is defined as the number of gm moles of solute per ________________ of solvent?
A. Litre
B. Kg
C. Gm
D. C.c
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Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be_________________?
A. 1
B. > 1
C. < 1
D. ≤ 1
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The recovery of penicillin from the acidified fermentation broth is done by__________________?
A. Distillation
B. Evaporation
C. Absorption
D. Liquid extraction
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The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called__________________?
A. Decoction
B. Percolation
C. Elutriation or elution
D. None of these
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With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux__________________?
A. Increases
B. Decreases
C. Remain same
D. May increase or decrease; depends on system
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Word of the Day
27 Jul
Widen
make or become wider.
چوڑا ہونا، کشادہ کرنے کا عمل

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