Chemical Engineering Basics MCQs

Question 1

__________ flux is used for the extraction of metal from its self fluxing ores.

Accepted Answer

No

Answer

Acid

Answer

Basic

Answer

Neutral

Question 2

Metals in general have a low value of thermal

Accepted Answer

Inertia

Answer

Conductivity

Answer

Diffusivity

Answer

All of the above

Question 3

The machanism involved in the removal of metal in drilling operation is by

Accepted Answer

Both A & C

Answer

Compression

Answer

Extrusion

Answer

Shearing

Question 4

Spheriodising of a material is a/an __________ process.

Accepted Answer

Annealing

Answer

Normalising

Answer

Tempering

Answer

Hardening

Question 5

Good design of the casing of a centrifugal pump aims at minimising the

Accepted Answer

Kinetic energy loss

Answer

Cavitation

Answer

Frictional losses

Answer

Static head

Question 6

The maximum axial compression stress during cold upsetting of a cylinderical rod of radius (r) occurs at

Accepted Answer

The centre

Answer

The outer edge of the rod

Answer

$$\frac{{	ext{R}}}{3}$$ from the centre

Answer

$$\frac{{	ext{R}}}{2}$$ from the centre

Question 7

Nuclear fission of one atom of uranium-235 produces the energy equivalent to about __________ MeV.

Accepted Answer

200

Answer

20

Answer

500

Answer

1000

Question 8

Fahrenheit and Centigrade scales have the same readings at

Accepted Answer

-40°

Answer

-55°

Answer

-33°

Answer

-58°

Question 9

A solution which resists change in its pH value on addition of acid/alkali is called the __________ solution.

Accepted Answer

Buffer

Answer

Neutral

Answer

Ideal

Answer

Zero pH