Chemical Engineering Basics MCQs

Question 1

The cathode in an electrochemical cell always carries

Accepted Answer

Negative charge

Answer

Positive charge

Answer

Zero charge

Answer

Positive or negative charge depending upon the nature of the cell

Question 2

Rockwell number represents the

Accepted Answer

Hardness of a substance

Answer

Colour of a pigment

Answer

Density of a polymer

Answer

Active ingredients in a fertiliser

Question 3

Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

Accepted Answer

Magnesium

Answer

Manganese

Answer

Phosphorous

Answer

Chromium

Question 4

Steel & cast iron pipes are produced by __________ casting.

Accepted Answer

True centrifugal

Answer

Slush

Answer

Die

Answer

Investment

Question 5

Electric arc furnace is employed mainly for the production of __________ steel.

Accepted Answer

Alloy

Answer

High carbon

Answer

Mild

Answer

Plain carbon

Question 6

Powder metallurgy technique is used in the production of __________ tools.

Accepted Answer

Tungsten carbide

Answer

High carbon steel

Answer

High speed steel

Answer

Drilling

Question 7

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

Accepted Answer

Fuel injector

Answer

Air filter

Answer

Exhaust silencer

Answer

Battery

Question 8

Babbit lining is used on brass/bronze bearings to increase the

Accepted Answer

Wear resistance

Answer

Antifriction properties

Answer

Compressive strength

Answer

Bearing resistance

Question 9

Galvanic corrosion can not be prevented by

Accepted Answer

Anodic protection

Answer

Cathodic protection

Answer

Usage of largest possible anodic area

Answer

Any one of these