Material Science MCQ Questions Answers Mechanical Engineering

Material Science Questions Answers MCQ – Mechanical Engineering

1) An example of amorphous material is

a) brass

b) glass

c) silver

d) lead

View Answer
Option – b)

2)Which of the following steel making process is being adopted at Rourkela (in India) Steel Plant?

(A) Bessemer process

(B) Open hearth process

(C) Electric process

(D) LD process

View Answer
Option – d)

3) The co-ordination number of BCC crystal structure is

a) 8

b) 16

c) 12

d) 10

View Answer
Option – a)

4)Eutectoid reaction occurs at

(A) 600°C

(B) 723°C

(C) 1147°C

(D) 1493°C

View Answer
Option – b)

5) Which of the following material is not a ferromagnetic material ?

a) iron

b) Nickel

c) Zinc

d) Cobalt

View Answer
Option – c)

6)Copper is used for making electrical conductors because it is

(a) ductile

(b) resists corrosion

(c) has low resistance

(d) cheap

View Answer
Option – c)

7) The correct order of co-ordination number is SC,BCC,FCC and HCP unit cells is

a) 12,12,8,6

b) 6,8,12,12

c) 6,6,8,12

d) 12,8,6,12

View Answer
Option – b)

8)Aluminium alloys find use in aircraft industry because of

(a) high strength

(b) low sp. gravity

(c) good corrosion resistance

(d) good weldability

View Answer
Option – b)

9) The packing factor of diamond cubic crystal structure is

a) 90%

b) 45%

c) 34%
d) None of these

View Answer
Option – d)

10)Crystal structure of a material is, generally, examined by

(A) Naked eye

(B) Optical microscope

(C) Metallurgical microscope

(D) X-ray techniques

View Answer
Option – d)
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