Chemical Engineering - Chemical Engineering Basics

1. 

Sewage is not an excellent medium for the growth of

A. aquatic creatures.
B. protozoa.
C. virus.
D. pathogenic bacteria.

Answer: Option A

Explanation:

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2. 

Which of the following pair is correctly matched?

A. Heat transfer: Thermal diffusivity.
B. Mass transfer: Diffusion co-efficient.
C. Momentum transfer: Kinematic viscosity.
D. all 'a', 'b' & 'c' are correctly matched.

Answer: Option D

Explanation:

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3. 

Rate of chemical reaction is not much affected, if the reactants are in __________ form.

A. solids
B. liquids
C. either (a) or (b)
D. gaseous

Answer: Option C

Explanation:

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4. 

Materials used for making permanent magnets containing iron and nickel are made by __________ technique.

A. powder metallurgy
B. casting
C. forging
D. none of these

Answer: Option C

Explanation:

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5. 

Lubrication is done to control

A. friction
B. wear
C. temperature
D. all (a), (b) & (c)

Answer: Option D

Explanation:

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