300+ TOP Material Science MCQs and Answers

Material Science Multiple Choice Questions

1. The body centered cubic (BCC) lattice is found in

a. Aluminium

b. Copper

c. Cadmium

d. Tungsten

2. The Brinell Hardness Number (BHN) for mild steel lies in the range of:

a. 50 to 70

b. 70 to 100

c. 110 to 150

d. 150 to 300

3. Which of the following test is a destructive test?

a. Radiography

b. Compression test

c. Ultrasonic inspection

d. None of the above

4. Which hardness method can be used to measure hardness of a single grain?

a. Rockwell

b. Knoop

c. Vickers

d. Shore

5. Higher is the temperature of tempering:

a. the softer will be the product

b. the tougher will be the product

c. the harder will be the product

d. the stronger will be the product

6. Mild steel is

a. High carbon steel

b. Medium carbon steel

c. Low carbon steel

d. None of the above

7. The following constituents of steel is least strong and softest

a. Ferrite

b. Pearlite

c. Austenite

d. Martensite

8. In which of the following carbon varies from 4 to 4.5%?

a. Wrought iron

b. Pig iron

c. Grey iron

d. Cast iron

9. Minimum carbon content in Cast iron is

a. 1%

b. 2%

c. 3%

d. 4%

10. Presence of which of the following makes pig iron hard

a. Sulphur

b. Phosphorous

c. Sodium

d. Calcium

11. Which the following is added to steel to increase the corrosion resistance?

a. tungsten and vanadium

b. zinc and lead

c. chromium and nickel

d. Sulphur and phosphorous

12. Following stress relieving process is used after cold working of materials

a. Tempering

b. Cyaniding

c. Annealing

d. Normalizing

13. Dislocation in materials is ___ defect.

a. Point

b. Line

c. Plane

d. Casting defect

14. Purpose of tempering is to improve

a. ductility

b. malleability

c. hardness

d. machinability

15. Tensile strength of steel is increased by addition of

a. Manganese

b. Sulphur

c. Phosphorous

d. Carbon

Material Science Objective Questions and Answers Pdf Download

One thought on “300+ TOP Material Science MCQs and Answers

Leave a Reply

Your email address will not be published. Required fields are marked *