Em Model Set B.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/SET A

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

(a)(i)What

is

polymerization?

(5X13=65)

Describe

addition

polymerization

condensation polymerization.(10) (ii) List the typical applications of PTFE? (3)

2 2

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

3

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

2

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

2

4 2

and

(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)

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

2

(iii) PP (3)

2

2

(iv) Polycarbonate (PC) (4)

(iv)PS(3)

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

13

2

4

(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)

2

(i)Substitutional Solid Solutions (or) Discuss on substitutional solid

1 14

1

solution with an example(7) (ii)Draw a typical isomorphism phase diagram and explain the structural change of an alloy (6)

3

(i)What are the micro-constituents of iron-carbon alloys? Explain the general characteristics of each. (6) (ii)Solidification of Iron-Carbon Alloys (or) Discuss the

1

2

classification, properties and application of steel(7)

1

b)Draw iron –carbon equilibrium diagram and label all the phases.

Also enumerate the properties of the following phase(13) 2

2

15

(b)(i) Define Annealing. Explain the type of annealing process(13) PART – C

Describe the following process. a) Normalizing(3) b) Hardening(4)

2 2

c)Quenching(4) 16

2

2

(1X15=15)

(a)Draw

d) Tempering(4)

Time-Temperature-Transformation(T-T-T)

diagram

and

label all the phases.Also enumerate any four objectives of heat treatment of steel(15)

CO4: The student can able to understand different types of the thermosetting and thermoplastics ,ceramics and composites. CO2: The student can able to understand different types of heat treatment process CO1: The Student can able To understand iron carbon equliibrium diagram,different

microstructure of the steel.

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

Prepared By

Subject In-charge

Verified By

Batch Coordinator

Approved by

DEAN/HOD

Course Title Course Code Academic Year

ENGINEERING METALLURGY ME8491

2019

Test Name

MODEL

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 31 U T I O N K1 - REMEMBER

135

14

K2 UNDERSTAND

K3 - APPLY

0

0

0

K4 - ANALYSIS

K5 - EVALUATE

K6 - CREATE