Chemical Engineering MCQs

6108 MCQs  (Page 178 of 611)

Attempt Chemical Engineering Quiz
With increase in temperature, the rate of leaching increases, because the___________________?
A. Diffusivity of solute increases
B. Viscosity of solvent decreases
C. Thermal conductivity of solute increases
D. None of these
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Bound moisture is that liquid which exerts an equilibrium vapor pressure ________________ that of the pure liquid at the given temperature ?
A. Less than
B. More than
C. Equal to
D. Either a. or b.; depends on the solid
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The reflux to a distillation column is 100 moles/hr, when the overhead product rate is 50 moles/hr. The reflux ratio is____________________?
A. 2
B. 0.5
C. 50
D. 150
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Which of the following is not a batch drier ?
A. Truck drier
B. Agitated pan drier
C. Fluidised bed drier
D. Vacuum shelf drier
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Acetic acid will be most economically separated from a dilute solution of acetic acid in water by____________________?
A. Solvent extraction
B. Continuous distillation
C. Evaporation
D. Absorption
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The main reason for dividing a tall packed tower into series of small towers is to________________________?
A. Minimise the overall pressure drop
B. Avoid flooding
C. Reduce liquid hold up
D. Avoid channelling
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The most efficient cooling tower out of the following is_____________________?
A. Induced draft
B. Forced draft
C. Natural draft
D. Atmospheric
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Molecular distillation is_____________________?
A. High temperature distillation
B. For heat-sensitive materials
C. Very low pressure distillation
D. Both b. and c.
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The value of NA/(NA + NB) for steady state molecular diffusion of gas ‘A’ through nondiffusing gas ‘B’ is____________________?
A. 1
B. ∞
C. 0.5
D. 2
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All moisture in a non-hygroscopic material is the ________________ moisture?
A. Free
B. Equilibrium
C. Unbound
D. Bound
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Word of the Day
26 Jul
Simultaneously
at the same time.
ایک ہی وقت میں، ایک ساتھ، بیک وقت

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