Previous year question paper for MS (Diploma Mechanical Engineering 4th)

1. General (04 hrs)

 1.1 Introduction to engineering materials.

 1.2 Classification of materials

 1.3 Thermal, chemical, electrical properties.

 1.4 Selection criteria for use in industry.

2. Structure of Metals and their Deformation (06 hrs)

2.1 Metal Structure - Relation of metal structure to its properties.

2.2 Arrangement of atoms in metals (Basic idea)

2.3 Crystalline Structure of metals

2.4 Crystal Imperfections

2.5 Deformation of metal

2.6 Impact of cold and hot working on metal structure

3. Ferrous Materials (10 hrs)

 3.1 Classification of iron and steel

 3.2 Sources of iron ore and its availability.

 3.3 Manufacture of pig iron, wrought iron, Cast iron and steel(Flow

Diagrams only)

 3.4 Types of Cast Iron: White, malleable, grey, mottled, modular and alloy

and their usage.

 3.5 Steels and alloy steel

3.5.1 Classification of steels

3.5.2 Different manufacturing methods of steel, open hearth,

Bessemer & electric arc.

3.5.3 Availability, Properties and usage of steels.

3.5.4 Specification as per BIS and equivalent standards.

3.5.5 Effect of various alloying element like Cr,Ni, Co,V, ,Mo,Si, Mn,S

on mechanical properties of steel.

3.5.6 Use of alloy steels(high speed steel stainless steel, springs teel,

silicon steel. 

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4. Non Ferrous Materials (06 hrs)

 4.1 Important ores and properties of aluminium, copper, zinc, tin, lead.

 4.2 Properties and uses of Al alloys, Copper alloys, Bearing metals,

solders.

5. Composite, Ceramics and Plastics. (06 hrs)

5.1 Definitions, sources.

5.2 Metal matrix composites, ceramic matrix composites,

fibrereinforced composites, carbon – carbon composites.

5.3 Engineering ceramics, natural and artificial ceramics

5.4 Various trade name of engineering plastics, thermosetting and

thermoplastic.

5.5 Plastic coatings

5.6 Fibers and their classification: inorganic and organic fibers.

5.7 Engineering application of composites, ceramics and plastics.

6. Insulating Materials (04 hrs)

6.1 Various heat insulating material and their usage like asbestos,

glass wool, thermocole, cork, puf, china clay.

6.2 Various electrical insulating material and their use like China

clay, leather, bakelite, ebonite, glass wool, rubber, felt.

7. Testing of Metals and Alloys (02 hrs)

7.1 Identification tests: appearance, sound, spark, weight, magnetic,

band microstructure, filing.

8. Fundamentals Of Heat Treatment (10 hrs)

8.1 Purpose of heat treatment

8.2 Theory of solid solution

8.3 Iron-Carbon Diagram

8.4 TTT Curve in steels and its importance.

8.5 Basic idea about martensitic transformation

8.6 Various heat treatment processes-hardening, tempering,

annealing, normalizing, case hardening(elementary idea)

8.7 Types of heat treatment furnaces