Course Details

Mechanical Drawings

Course Overview

The course includes an induction session to welcome and orientate the candidate, and familiarize them with the training centre, health and safety requirements and other important policies and procedures. The training consists of a mix of classroom and workshop sessions and various assessments. Upon successful completion, the candidate will gain the knowledge and understanding to enhance their existing skills to correctly identify equipment and components from various types of drawings.

The course is designed for an apprentice or beginner who would like to work as a Draftsman – Mechanical.

The candidate should have basic knowledge in mechanical engineering.

Upon completing the training course, candidates will be awarded a ‘Certificate of Attendance’ from NTI, attested by the Ministry of Manpower.

Other Details

Drawing standards

  • Drawing standards & Drawing tools
  • Choose the required layout for drawing, symbols, title block ,lettering, tolerance, first angle and third angle
  • Select the type of lines used in mechanical drawing
  • Identify the different types of scale factor used
  • Identify the types of dimensioning

Geometric construction

  • Points and Lines, Angles, Triangle, Quadrilaterals, Polygons, Circles and Arcs, Bisecting an Angle ,Transfer an Angle, Drawing Triangle,  Square Angles, Regular Pentagon, Hexagon, Octagon, Tangents and Ellipse template

Sectioning

  • A general overview of the types of drawings used Sketching material ,types scale and proportions Sectional views- Cutting Plane, Full Section, Half Section, Broken Section, Revolved Sections ,Ribs in Section and Conventional Breaks

Threads and fasteners

  • Screw Thread, External thread, Internal Thread, Major Diameter, Minor Diameter, Pitch, Pitch Diameter, Crest, Root, Axis of Screw, Depth of Screw

Orthographic Drawings – details - applications

Isometric Drawings– details – applications

Preliminary engineering drawings

  • Block flow diagram
  • Process flow diagram
  • Symbols

Piping and instrumentation diagram

  • P&ID symbols
  • Line numbering
  • Valve numbering
  • Equipment identification

Interpreting P &IDs Valves and equipment

Interpreting P &IDs Control and safety systems

Detailed engineering drawing

  • Plot plan
  • Electrical area classification
  • Isometric

By the end of the module the candidate will be able to:

  • Discuss the background of engineering drawing and development.
  • Describe the related engineering standards.
  • List out the drafting equipment.
  • Construct the geometric figures.
  • Apply the types of sketching method and dimensioning.
  • Show the different types of sectioning in machine components.
  • Sketch the threads, fasteners and screw thread forms.
  • Sketch the preliminary engineering drawing.
  • Construct the piping and instrumentation diagram.
  • Interpret the P&IDs – Valves, equipment, controls and safety system.
  • Construct the detail engineering drawing in P& IDs.

 

Generally, the work that the learners are undertaking on the short-courses can be quite intensive so it is important that they stay focused yet, at the same time, enjoy their experience in the centre. The centre will employ different pedagogical strategies to help achieve this and these may consist of the following although this list is not exhaustive: 1. Teacher Centred Methods • Lecture • Explanation • Demonstration • Questioning 2. Active Methods • Discussion • Group Work • Quiz • Simulations 3. Student Centred Methods • Reading • Private Study • Homework • Assignments/projects • Reports • Guided Discovery