Basic Engineering Drawing KNEC notes

Basic Engineering Drawings

Introduction

This module is designed to equip the trainee with the necessary skills and attitude in geometric and engineering drawing.

TOPICS COVERED:

Introduction to Engineering Drawing and Design

  • Drawing instruments
  • Drawing Office
  • Drawing paper

Paper layout

  • Paper Layout
  • Lettering
  • Numbering

Plane Geometry

  • Straight lines
  • Common angles
  • Triangles
  • Quadrilaterals
  • Polygons
  • Circles

Blending of Lines and Arcs

  • Straight lines
  • Arcs
  • Circles

Tangents

  • Circles and tangents
  • Common tangents
  • External and Internal tangents

Pictorial & Orthographic Projections

  • Pictorial and
  • Orthographic
  • Isometric oblique
  • Cavalier, cabinet
  • 1st angle projection and
  • rd angle

Lines In Space

  • True length
  • Traces of the straight
  • Line given the Plan and elevation.
  • True angle between the
  • VP and the oblique plane
  • True shape of a lamina

Solid Geometry

  • Solid Geometry
  • Surface development
  • Intersection of Geometrical objects
  • Auxiliary views

Conic Sections

  • Ellipse
  • Parabola
  • Hyperbola

Loci and mechanisms

  • Loci of plane figures
  • Loci of rigid link
  • mechanisms
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