Chemical Engineering Basics MCQs

Question 1

Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at

Accepted Answer

Zero pressure

Answer

High vacuum

Answer

0°K

Answer

Earth

Question 2

Sewage is not an excellent medium for the growth of

Accepted Answer

Aquatic creatures

Answer

Protozoa

Answer

Virus

Answer

Pathogenic bacteria

Question 3

Which of the following is not an ore of zinc?

Accepted Answer

Cerrusite

Answer

Franklinite

Answer

Calamine

Answer

Troosite

Question 4

Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding

Accepted Answer

None of these

Answer

Glycerol

Answer

Nitro cellulose

Answer

Camphor

Question 5

Semi-conductors normally employ __________ bonding.

Accepted Answer

Covalant

Answer

Co-ordinate

Answer

Ionic

Answer

Metallic

Question 6

Out of the following materials, the one which generally exhibits an yield point is

Accepted Answer

Hot rolled mild steel

Answer

Hard bronze

Answer

Soft brass

Answer

Cold rolled mild steel

Question 7

__________ is used for tying the steel coloumns to concrete foundation.

Accepted Answer

Anchor bolts

Answer

Grouting

Answer

Eyebolt

Answer

Refractory castables

Question 8

Which of the following has rotten eggy smell?

Accepted Answer

Hydrogen sulphide

Answer

Styrene

Answer

Phenol

Answer

Dimethyl amine

Question 9

Which of the following is not an ore of iron?

Accepted Answer

Chalcopyrite

Answer

Magnetite

Answer

Hemetite

Answer

Limonite