THEORY EXAMINATION (SEM–II) 2016-17 MANUFACTURING PRACTICE

This question paper covers key concepts of forging, welding, carpentry, sheet-metal work, fitting, pattern making, casting, wood seasoning, and basic machine tools.
It is divided into three sections assessing definitions, concepts, sketches, and explanations of workshop processes.

SECTION – A (10 × 2 = 20 Marks)

This section contains ten short questions, requiring simple definitions or classifications.
Topics include:

Types of forging processes

Straight polarity in welding

Carpentry joints

Tapping vs dieing

Types of shearing machines

AC vs DC welding

Punching vs blanking

Adhesiveness vs cohesiveness

Tools in blacksmithy

Gang milling

This section checks basic workshop terminology and fundamentals.

SECTION – B (5 × 10 = 50 Marks)

Students must attempt any five descriptive questions, many requiring neat sketches.
Topics include:

Need and methods of seasoning of wood

Timber defects; types of vices used in fitting shop

Principle, working, and types of resistance welding

Working principle of a shaper machine with diagram

Pattern construction methods

Casting defects; functions of molding sand additives

Sheet-metal operations; brief note on green sand

This section tests process explanations, workshop practices, and sketch-based understanding.

SECTION – C (2 × 15 = 30 Marks)

Students must attempt any two long-answer questions.
Topics include:

Welding Concepts

Short notes on arc blow, arc crater, and flux

Sheet-Metal Work

Types of sheet-metal joints

Importance of sheet-metal allowances

Forging & Machine Tools

Types of forging operations

Parts of a lathe machine with neat sketch

This section evaluates in-depth knowledge, detailed explanation, and technical drawing skills.