D7081

PART C

Answer any two questions, each carries 20 marks.
Explain the following crystallographic structures. i)BCC and ii)FCC
Define the following:
i) Hardness ii) Toughness iii) Creep iv) Fatigue ए) Stiffness
Differentiate between Soldering and brazing.
Name and explain any four operations on lathe.
How engineering materials are classified. Give two examples for each.

List any four destructive material testing methods and explain their purpose.

What is extrusion? Explain different types of extrusion processes.

List the advantages of CNC machining over conventional machining.
What are ceramics and composites?Give examples for each and their uses.
Draw the stress-strain diagram for mild steel and mark the salient points.
With neat sketch explain any four types of forging operations.

Differentiate between operations done in planer and shaper machines.
ತೇಜ ೫ ೫

Page 2 of 2

(6)
(5)

(4)
(5)
(5)
(6)
(5)
(4)
(6)
(4)
(6)
(4)