Chemical Engineering Basics MCQs

Question 1

Wood is a/an __________ material.

Accepted Answer

Cellular

Answer

Amorphous

Answer

Homogeneous

Answer

Grannular

Question 2

Lead is most readily dissolved in

Accepted Answer

Acetic acid

Answer

Hydrochloric acid

Answer

Nitric acid

Answer

Sulphuric acid

Question 3

Holes in a plate for rivetted joints is preferably made by

Accepted Answer

Drilling

Answer

Tapping

Answer

Reaming

Answer

Punching

Question 4

Hard magnetic materials have high

Accepted Answer

Both A & B

Answer

Coercive force

Answer

Residual magnetic induction

Answer

Neither A nor B

Question 5

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

Accepted Answer

°F

Answer

°C

Answer

°K

Answer

°R

Question 6

Classification of metal forming processes into hot and cold working is based on the following parameters.

Accepted Answer

Recrystallisation temperature

Answer

Stacking fault energy

Answer

Solidus temperature

Answer

Transformation temperature

Question 7

Working of linear variable differential transducer (LVDT) is based on the principle of variable

Accepted Answer

Mutual inductance

Answer

Capacitance

Answer

Resistance

Answer

None of these

Question 8

Silicon percentage in acid resistant cast iron is about

Accepted Answer

4

Answer

8

Answer

14

Answer

20

Question 9

Pick out the wrong statement.

Accepted Answer

Poisson's ratio of high melting point metals is more than unity

Answer

A soft magnetic material should have high permeability and small area of hysterisis loop

Answer

Solders generally melt at less than 185°C

Answer

Steel produced by B.O.F process is ideally suited for manufacturing flat product