Automotive Materials And Metallurgy Question Paper of 3rd Semester AE Download Previous Years Question Paper 3

Roll no……………..

Total no. of Questions:09]

B.Tech. (sem.-3^rd)

AUTOMOTIVE MATERIALS AND METALLURGY

SUBJECT CODE: AE-207

PAPER ID:[A0705]

Time : 03 Hours

Instruction to Candidates:

1.     SECTION-A is compulsory consisting of Ten question carrying Two marks each.

2.     SECTION-B contains FIVE questions carrying Five marks each and students has to attempt any four questions.

3.     SECTION –C contains Three questions carrying Ten marks each and students has to attempt any Two questions.

Section –A

1.     Write briefly:

a.     Define atomic number. What is crystal imperfection?

b.     What is crystal imperfections?

c.      What is cematite?

d.     Define binary solutions.

e.      Define annealing.

f.       What is hot dipping?

g.     Define fatigue.

h.     Name the material for gudgeon pin.

i.       Give the composition of stainless steel. 

j.       What is thermal coating?

Section –B

2.     Differentiate between slip and twin.

3.     What is recrystallization? How it is different form recovery?

4.     State the applications of composite materials in automobiles.

5.     What is induction hardening? How it is different form flame hardening?

6.     State the criterion to be taken care of while selecting the material for piston and piston ring.

Section –C

7.       

a.     What is allotropy? State which materials exhibit allotropy and why?

b.     What is the difference between annealing and normalizing?

8.     What is Gibbs phase rule? Explain the phase transformations in a system whose components have complete mutual solubility in the liquid state and limited solubility in the solid state.

9.     Write short not on following:

a.     Anodizing

b.     Alloys of Mg