About this previous year paper
This B.Tech Manufacturing Science & Technology–I (RME402) question paper from the 2017–18 IV Semester Theory Examination is a comprehensive assessment designed to evaluate a student’s conceptual understanding, analytical skills, and problem-solving abilities in core manufacturing engineering. The paper carries 70 marks and is divided into three structured sections (A, B, C), each focusing on progressively deeper levels of manufacturing science topics.
Section A – Short Answer Fundamentals
Section A contains seven brief questions, each worth 2 marks, covering foundational concepts of manufacturing. Students must demonstrate clear definitions and conceptual clarity on topics such as:
Classifications of manufacturing processes
Recrystallization temperature and its role in metal forming
Forging and types of forging operations
Angle of bite in rolling and parameters affecting it
Difference between blanking and punching
Hot chamber vs. cold chamber die casting
Unconventional metal forming processes
These questions test the student’s basic theoretical knowledge required for advanced applications.
Section B – Analytical & Descriptive Problems
This section requires attempting any three questions, each of 7 marks, and focuses on deeper understanding and explanation-based problems including:
Defects in rolling, causes, and remedies
Powder metallurgy: importance, steps, and applications
Deep drawing process, along with its typical defects
Comparison of compound and progressive dies, with diagrammatic explanation
Advantages of bottom gating systems and deriving the filling time equation
These questions expect structured answers with diagrams, explanations, and engineering reasoning.
Section C – Advanced Theory & Numerical Applications
Section C includes five main questions (Q3 to Q7), each with either-or choices, focusing on higher-order concepts, derivations, and numerical calculations.
Topics covered include:
Centrifugal casting, its types, and applications
Casting defects, causes, and remedies
Explosive forming and its working mechanism
Jigs & fixtures with the 3-2-1 principle of location
Sheet metal operations like trimming, shaving, lancing, notching, and nibbling
Derivation of radial stress in deep drawing
Wire drawing numerical with friction factor, stress determination, and reduction limits
Rolling bite angle calculation using given roll diameter and reduction
Forging pressure expression derivations
Forging force calculation using yield stress, friction factor, and dimensional change
These questions measure a student’s ability to apply formulas, understand mechanics of forming processes, and perform multi-step engineering calculations.