Basic Engineering Drawing KNEC notes

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