Emmodelsugu.docx

MAILAM ENGINEERING COLLEGE, MAILAM (Approved by AICTE, New Delhi, Affiliated to Anna University Chennai) A TATA Consultancy Services Accredited Institution Department of Mechanical Engineering Test

MODEL

Sub/Code:

Year / SEM:

2ND / 4TH

Date:

Time:

3 HRS

Marks

ME 8491/ENGINEERING METALLURGY

100

PART – A

(10X2=20)

CO

Level

Q.no

4

2

1.

Define polymers?

4

2

2.

Define the term ‘degree of polymerization?

4

2

3.

What are outstanding properties of PTFE?

4

2

4.

What is PA? And Write the general mechanical properties of ceramics.

2

1

5.

When annealing process is is preferred?

2

1

6.

What is the need of annealing process?

2

2

7.

What are the principal advantage of austempering over conventional quench and temper method?

1

1

8.

What is an equilibrium phase diagram?

1

1

9.

What are interstitial solid solutions and interstitial compounds?

1

1

10.

Define Solid Solution and give its types? PART – B

11. 2

4

is

polymerization?

Describe

addition

polymerization

(ii) List the typical applications of PTFE? (3)

2

(b) (i) What are outstanding properties of PSZ?(3)

2

(ii) How do thermoplastics differ from thermosetting materials?(8)

2

(iii) State any four application of Bakelite.(2) 12.

2

and

condensation polymerization.(10)

2

2

4

(a)(i)What

(5X13=65)

(a)i.Describe

the molecular structures, properties and applications of thermoplastics polymers given in below. (i) Polystyrene (PS) (3) (ii). Polytetrafluoro (PTFEs) (3)

(iii) PMMA (3)

(iv) Polycarbonate (PC) (4)

(b)explain the microstructure, properties and application for following polymers :(i) Polyphenylene oxide (PPO) (4) (ii) PE (3)

2

(iii) PP (3)

2

(iv)PS(3)

(ii) explain the microstructure, properties and application for following polymers

5

13 3

(i)ABS(3) (ii) PVC(3) (iii) PTFE(4) (iv) PC(3) (a)(i) Describe the molecular structures, properties and applications of thermosetting plastics. (6) (ii) Describe the different types of reinforcement used in polymer composite. (7)

(b) What are the different types of engineering ceramics? Give any four ceramics

their properties and applications (or) Classify engineering ceramics and list properties and applications of Sic and Si3N4 (13)

3

3

14

(7) (ii) compression shear and (6)

5

((I (b) Types of hardness tests (i)Brinell hardness test(7) (ii)Rockwell hardness test(6)

3

15

(a)Explain the (i)Vickers hardness test(6) (ii). Torsion test (7)

3

5

3

(b) write short notes on impact tests?(13)

PART – C 2

(1X15=15)

16

(a)Explain the following terms (i) fatigue (ii)creep(15) 5

2

3

(b)Explain the plasma and vacuum hardening. (15)

CO2: The student can able to understand different types of heat treatment process CO5: The Student An Able To Understand Various Hardness Test And Different Types Of

Fracture

K1-REMEMBER K2-UNDERSTAND K3-APPLY K4-ANANLYSIS K5-EVALUATE K6-CREATE

Prepared By

Verified By

Subject In-charge

Batch Coordinator

Course Title Course Code

ENGINEERING METALLURGY ME8491

Approved by

DEAN/HOD

Academic Year

2019

Test Name

IT-II

Year/Sem

II/ 04

Dept Batch Faculty Name

MECH 2017– 2021 Mrs.A.SUGANTHI

10 M A R K D I S T R I B U T 10 I O N K1 - REMEMBER

101

69

K2 UNDERSTAND

K3 - APPLY

0

0

0

K4 - ANALYSIS

K5 - EVALUATE

K6 - CREATE