Chemical Engineering Basics MCQs

Question 1

The activity co-efficient of the solute in a dilute solution

Accepted Answer

Remains constant

Answer

Decreases with the increase of concentration of the solute

Answer

Increases with the increase of concentration of the solute

Answer

Is unity at infinite dilution

Question 2

The ultimate strength in tension for steel is __________ times the ultimate strength in shear.

Accepted Answer

1.5

Answer

0.5

Answer

0.9

Answer

2.5

Question 3

Tesla metre per ampere (T. m/A) is the unit for the measurement of

Accepted Answer

Permeability of free space

Answer

Magnetic succeptibility

Answer

Magnetic moment

Answer

Flux density

Question 4

Sheardising process is used for

Accepted Answer

Surface coating

Answer

Heat treatment of high speed steel

Answer

Cold working on metals

Answer

None of these

Question 5

Malleabilisation heat treatment is performed on

Accepted Answer

White cast iron

Answer

Cast steel

Answer

Grey cast iron

Answer

Spheroidal graphite cast iron

Question 6

Tin based white metals are used, where bearings are subjected to

Accepted Answer

High pressure & load

Answer

Low pressure & load

Answer

High temperature

Answer

Large surface wear

Question 7

Which of the following materials does not form adherent oxide film on surface?

Accepted Answer

Gold & silver

Answer

Copper

Answer

Nickel

Answer

Aluminium

Question 8

Broaching tools are usually made of

Accepted Answer

High speed steel

Answer

Cermets

Answer

Tungsten carbide

Answer

Stellite

Question 9

Hooke's law

Accepted Answer

Applies to elastic deformation

Answer

Applies beyond limit of proportionality in stress-strain curve

Answer

States that stress is inversely proportional to strain upto elastic limit

Answer

Noneofthese