Automotive Materials Question Paper of 3rd Semester AE Download Previous Years Question Paper 4

Roll no……………..

Total no. of Questions:09]

Examination May -2014

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

AUTOMOTIVE MATERIALS

SUBJECT CODE: BTAE-305

PAPER ID:[D1155]

Time : 03 Hours

Instruction to Candidates:

Section –A is compulsory, Attempt any four form section-B, and any two from section –C

Section –A

1.     Attempt all questions.

a.     List various alloying elements in stainless steel.

b.     What is re-crystallization temperature?

c.      List important properties of ceramics.

d.     Why vulcanization of rubber is required?

e.      Define thermosetting plastics with examples and application.

f.       What type of fiber reinforcements are done in PMCs.

g.     Ware monolithic ceramics?

h.     State benefits of carbon/carbon composite materials.

i.       State the need of heat treatment of steel

j.       What do you mean by cryogenic wear.

Section –B

Attempt any 4 questions.

2.      Discuss the effect of various alloying elements on law alloy steels.

3.     Discuss various factors affecting selection of materials for axle and bearings.

4.     Discuss the effect of reinforcement in composite materials.

5.     Discuss need and types of coating for enhancing wear and corrosion resistance.

6.     Discuss various types of metal matrix composites used in automobiles.

Section –C

Attempt any 2 questions

7.     Classify engineering materials. Tate desirable mechanical , thermal and electrical properties of materials.

8.     Discuss in detail following heat treatment processes hardening and tempering.

9.     Discuss any two surface hardening techniques with objectives. List their applications also.