ME-405 Manufacturing Technology - Jun 2026 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aExplain the analysis of machining processes. Discuss the classification, working principle and industrial applications of various machining processes.
   How to answer

   • Define machining and need for analysis (forces, tool geometry, chip formation)
   • Classification: conventional vs unconventional, turning, milling, drilling, grinding etc.
   • Working principle of major processes
   • Industrial applications with examples
2. 7 Marks
   bExplain Centreless Grinding with a neat sketch. Discuss its working principle, and applications.
   How to answer

   • Centreless grinding setup: grinding wheel, regulating wheel, work rest blade
   • Neat sketch with labelling
   • Working principle: through-feed, rotation without centres
   • Applications: mass production of cylindrical parts
3. 7 Marks
   aExplain the properties and applications of various cutting tool materials such as High Speed Steel (HSS), Carbides, Ceramics, Cubic Boron Nitride (CBN), and Diamond tools.
   How to answer

   • Required tool properties: hot hardness, wear resistance, toughness
   • Properties of HSS, carbides, ceramics, CBN, diamond
   • Comparison of hardness vs toughness vs cost
   • Applications for each material
4. 7 Marks
   bExplain the Injection Moulding Process with a neat sketch. Discuss the construction and working principle and industrial applications.
   How to answer

   • Construction: hopper, reciprocating screw, heater, mould
   • Neat sketch of injection moulding machine
   • Working cycle: plasticizing, injection, cooling, ejection
   • Industrial applications: plastic parts, automotive, packaging
5. 7 Marks
   aExplain the complete machining process from cutting tool selection to finishing operation. Discuss the factors affecting machining quality and productivity.
   How to answer

   • Steps: work material study, tool selection, parameters, roughing to finishing
   • Factors: cutting speed, feed, depth, tool geometry, coolant
   • Machining quality: surface finish, accuracy, tool wear
   • Productivity measures and optimisation
6. 7 Marks
   bExplain the Extrusion Molding Process with a neat sketch. Discuss its construction, working principle, advantages and applications.
   How to answer

   • Construction: hopper, screw extruder, heater, die
   • Neat sketch of extrusion moulding line
   • Working principle: continuous melting and forcing through die
   • Advantages and applications: pipes, sheets, profiles
7. 7 Marks
   aDiscuss the importance of plastic processing techniques in modern manufacturing industries. Explain their role in the automobile, aerospace, packaging, electrical, and medical sectors.
   How to answer

   • Importance of plastics: light weight, corrosion resistance, design freedom
   • Role in automobile weight reduction and aerospace
   • Role in packaging, electrical and medical sectors
   • Examples of components in each sector
8. 7 Marks
   bDefine Unconventional Machining Processes (UCM). Explain their need, classification and applications in modern manufacturing.
   How to answer

   • Definition of UCM and contrast with conventional machining
   • Need: hard, brittle, complex shapes, no contact
   • Classification: mechanical, thermal, electrochemical, chemical
   • Applications in modern manufacturing
9. 7 Marks
   aDescribe the construction and working of Ultrasonic Machining (USM) with a neat sketch. Explain its industrial applications.
   How to answer

   • Construction: transducer, concentrator, tool, abrasive slurry
   • Neat sketch of USM setup
   • Working: ultrasonic vibration and abrasive hammering
   • Industrial applications: brittle materials, micro-holes
10. 7 Marks
    bDiscuss the applications of Unconventional Machining Processes in aerospace, automobile, biomedical, electronics and precision manufacturing industries.
    How to answer

    • Overview of UCM processes: EDM, ECM, laser, water jet
    • Applications in aerospace and automobile
    • Applications in biomedical and electronics
    • Precision manufacturing examples
11. 7 Marks
    aWhat is Non-Destructive Testing (NDT)? Explain its objectives, advantages, and importance in the inspection of machined components and cutting tools.
    How to answer

    • Definition and principle of NDT without damaging part
    • Objectives: defect detection, quality assurance
    • Advantages and limitations
    • Importance for machined components and cutting tools
12. 7 Marks
    bExplain the construction and working of Electron Beam Machining (EBM) with a neat diagram. Discuss its advantages and applications.
    How to answer

    • Construction: electron gun, vacuum chamber, focusing lens
    • Neat diagram of EBM system
    • Working: high-energy electron beam melting/vaporising material
    • Advantages and applications: micro-machining, aerospace
13. 7 Marks
    aCompare Destructive Testing and Non-Destructive Testing (NDT) with suitable examples. Discuss their advantages, disadvantages, and industrial applications.
    How to answer

    • Definition of destructive vs NDT with examples
    • Comparison table: principle, damage, cost, repeatability
    • Advantages and disadvantages of each
    • Industrial applications
14. 7 Marks
    bDefine Extrusion. Explain the principle of extrusion and discuss its advantages and industrial applications.
    How to answer

    • Definition of extrusion
    • Principle: compressive force forcing material through die
    • Types: hot/cold, direct/indirect
    • Advantages and industrial applications
15. 7 Marks
    aDefine Sawing. Explain the principles of sawing and discuss its importance in manufacturing industries.
    How to answer

    • Definition of sawing
    • Principles: toothed blade, chip formation, cutting action
    • Types of sawing machines
    • Importance in manufacturing: cutoff, stock preparation
16. 7 Marks
    bExplain the construction and working of an NC Machine Tool with a neat block diagram.
    How to answer

    • Block diagram of NC machine: program, controller, drive, feedback
    • Construction: machine control unit, servos, tooling
    • Working: coded instructions to motion control
    • Advantages for automation