NDSS Academy

Engineering Drawing - Year 2 (ITI Mechanical Group)

Sectional views, screw threads, fasteners, riveted and welded joints, pipe fittings, simple assembly drawings and reading of machine drawings.

12 MonthsDuration 5Chapters24Topics
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Syllabus · पाठ्यक्रम

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01Chapter 1: Sectional Views 5 topics
  1. Cutting plane and section lines (hatching)
  2. Full section and half section
  3. Offset, revolved and removed sections
  4. Conventions for ribs, shafts and webs in section
  5. Sectional views of simple machine parts
02Chapter 2: Screw Threads and Fasteners 5 topics
  1. Thread terms: major and minor diameter, pitch, lead
  2. Thread forms: ISO metric, BSW, square, acme, buttress
  3. Conventional representation of threads
  4. Hexagonal and square bolts and nuts, studs and set screws
  5. Locking devices, washers, keys and cotters
03Chapter 3: Riveted and Welded Joints 4 topics
  1. Rivet heads and proportions
  2. Lap joints and butt joints with single and double cover plates
  3. Types of welded joints
  4. Welding symbols as per IS 813
04Chapter 4: Pipe Fittings and Simple Assembly Drawings 5 topics
  1. Pipe joints: flanged, socket and spigot, union
  2. Pipe fittings conventions
  3. Assembly of flange coupling and muff coupling
  4. Assembly of plummer block / bushed bearing
  5. Bill of materials and part numbering
05Chapter 5: Reading Machine Drawings 5 topics
  1. Limits, fits and tolerance notation
  2. Geometrical tolerance symbols (basic)
  3. Surface finish and machining symbols
  4. Reading production drawings and title blocks
  5. Free-hand sketches of machine parts from samples

About

You will be able to

  • Draw full, half and other sectional views with correct hatching and conventions
  • Draw and represent screw threads, bolts, nuts, studs, locking devices and keys
  • Draw riveted and welded joints and read welding symbols
  • Prepare simple assembly drawings of couplings, bearings and pipe joints with a bill of materials
  • Read machine drawings including limits, fits, tolerances and surface finish symbols

Who it is for

  • ITI trainees of Fitter and Mechanic Motor Vehicle trades - Year 2 (NCVT / DGT CTS)
  • Trainees preparing for the Engineering Drawing paper of the AITT

What you need

  • Engineering Drawing Year 1 (projections and isometric views)
  • Drawing instruments and A3 / A2 sheets

Questions

Which syllabus does this course follow?

The NCVT / DGT CTS (NSQF) Engineering Drawing syllabus for mechanical-group trades, Year 2. The centre follows the student's own ITI syllabus where it differs.

Is CAD part of this course?

The ITI drawing paper is done by hand; CAD is offered as a separate add-on course.

What will I draw?

Sheets on sections, threads and fasteners, riveted and welded joints, pipe joints and simple assemblies such as couplings and bearings.

Download the syllabus (PDF)

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