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MECHANICAL DRAFTING
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C4321902
Code: C4321902
Credits: 4
Semester 2
ETC
Mechanical Drafting
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Follow on Instagram for UpdatesMechanical Drafting Syllabus — Unit-wise Content
The official GTU curriculum for Mechanical Drafting (subject code C4321902) as prescribed for ETC · Semester 2 divides the course into 6 units, covering 30 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (C4321902)Unit 1 Multiviews with sectional orthographic representation
- 1.1. First & third angle projection methods & and positions of six views.Importance of it in engineering drawing field.
- 1.2. Multi view drawings (all six views) from given isometric drawing / pictorial view.
- 1.3. Need of sections, section lines &cutting plane, rules forsectioning and section lines.
- 1.4. Types and application of sections- full, half, revolved, removed, partial, off-set, aligned, etc.
- 1.5. Sectional view drawings from given isometrics drawing / physical object and cutting plane conditions.
- 1.6. Missing view drawings from given adequate orthographic views. (Facultyshoulddemonstratethe physical model/dirty model/3D CAD model for better conceptualization and in depth understanding of topic.)
Unit 2 Intersection and Penetration of Solids and Surfaces
- 2.1. Types and dimensional specifications ofsolids (prism, pyramid, cylinder, cone).
- 2.2. Importance and field use/industrial applications with examples of intersection/penetration.
- 2.3. Intersection curve for Intersection/ penetration of: - Prism into prism. - Cylinder into cylinder. - Cylinder into prism. - Cone into cylinder.
- 2.4. Discussion / demonstration of moderate Mechanical Drafting Course Code:C4321902 Unit Unit Outcomes (UOs) levels) Topics and Sub-topics industry objects related to topic.
- 3.1. Importance and field use / industrial applications of development ofsurfaces. Introduction to cutting planes / section planes, positions of the cutting plane (HCP, VCP, PCP, AVP &AIP) w.r.t solids.
- 3.2. Drawing of development of surfaces of various solid - surface development of combination of different solids and of sectioned solids of: - Prism - Cylinder & Cone - Pyramid
- 3.3. Surface development of combination of any two solid (example: pipe joints, litre can, funnel, etc.)
Unit 3 Mechanical DraftingSymbols
- 4.1. Drafting Symbols (Machining, threading, dowels, pins, ribs, bearings, heat treatment conditions, surface conditions, assembly notes.)
- 4.2. Welding Symbols (as per BIS-813 / ASME, primary symbols & supplementary symbols.)
- 4.3. Piping Symbols (Pipe line symbol as per passing fluid,air, gas, water etc. and Piping fitting symbols.)
- 4.4. Demonstration of above symbol in production drawing.
Unit 4 System of Geometric Dimensioning and Tolerancing (GD&T)
- 5.1. Difference between dimensional tolerance & geometric tolerance. Limits & Fits–Introduction, need & applications.
- 5.2. Abbreviations & designations for shaft, holes and grades, determinations of deviation, limit, tolerance and fits, shaft basis and hole basis system & selection of shaft & hole pair as per standard tolerance of grades.
- 5.3. Selection of appropriate shaft / hole for a given condition, calculation of tolerances & deviations for a fit according to application of mating parts.
- 5.4. Geometric Tolerances – Introduction, symbols, representation, meaning of each element of tolerance frame and Mechanical Drafting Course Code: C4321902 Unit Unit Outcomes (UOs) levels) Topics and Sub-topics application in industrial drawing. (Faculty should demonstrate&discuss moderate production drawing for better understanding of topic)
Unit 5 Details & Assembly
- 6.1. Importance and difference of these drawings.
- 6.2. Detail drawing from given assembly.
- 6.3. Assembly drawings from given details and prepare BOM.
Unit 6 Fasteners
- 7.1. Detachable & permanent fasteners.
- 7.2. Sketches of threads (square, acme,knuckle, Internal – external threads,left hand – right hand threads, Single & multi start threads).
- 7.3. Sketches of studs (cap screws, machinescrews, set screws).
- 7.4. Sketches of bolts & nut (hexagonal,square).
- 7.5. Sketches of rivets (snap, pan,countersunk, conical).
- 7.6. Sketches of keys.
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