Chemical Engineering MCQs with explanations

Question 1

Half life of a radioactive isotope corresponds to the time required for half of the ________ to decay?

Accepted Answer

Atoms

Question 2

Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is ________?

Accepted Answer

CH4

Question 3

In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the________?

Accepted Answer

All A., B. and C.

Question 4

Dacron (or Treylene) fibres as compared to nylon fibres have________?

Accepted Answer

All A., B. and C.

Question 5

The function of secondary combustion air is to ________?

Accepted Answer

Completely burn the volatile matter

Question 6

Atoms of U-238 and U-235 differ in structure by three________?

Accepted Answer

Neutrons

Question 7

The gasification reaction represented by, C + H2O = CO + H2, is________?

Accepted Answer

Endothermic

Question 8

Isomerisation converts the ________ tot-paraffins?

Accepted Answer

Paraffins

Question 9

What is the ratio of total kinetic energy of fluid passing per second to the value obtained on the basis of average velocity (for laminar flow through a circular pipe)?

Accepted Answer

2

Question 10

Ammonium sulphate can be produced by reacting gypsum with________?

Accepted Answer

Ammonium carbonate

Chemical Engineering MCQs with Explanations