Chemical Engineering MCQs with explanations

Question 1

The velocity distribution in direction normal to the direction of flow in plane Poiseuille flow is________?

Accepted Answer

Parabolic

Question 2

As per Newton’s law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to (where, μ = fluid viscosity)?

Accepted Answer

μ

Question 3

With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux________?

Accepted Answer

Decreases

Question 4

Azeotropism for ethyl alcohol-water system disappears by________?

Accepted Answer

Decreasing pressure

Question 5

If helium is introduced in a reactor containing O2, SO2 and SO3 at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO3 (as per Le Chatelier’s principle)?

Accepted Answer

Decreases

Question 6

High ash containing coke________?

Accepted Answer

Produces more slag when used in the blast furnace

Question 7

________ nozzles are used in continuous casting of steel?

Accepted Answer

Zircon

Question 8

Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in________?

Accepted Answer

All A., B. and C.

Question 9

Separation of two volatile liquids by distillation makes use of their________?

Accepted Answer

Relative volatility

Question 10

General mechanism of size reduction in intermediate and fine grinder is by ________?

Accepted Answer

Impact and attrition

Chemical Engineering MCQs with Explanations