Chemical Engineering Basics MCQ Question with Answer

Question No : 43
Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

Question No : 44
Baffles provided on the shell side of a shell and tube heat exchanger are meant for

Question No : 45
Silicon crystal can be converted to p-type semiconductor by doping with

Question No : 46
With increase in annealing temperature, the following defect density decreases.

Question No : 47
The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the

Question No : 48
Wave length of X-rays is about 1 angstrom; however it cannot pass through a sheet of

Question No : 49
Corrosion is