Engineering Graphics - I

Product: Theory Subject
Categories: Engineering
Department: Common Subjects

Features Includes:

  • 283 - 3D/2D Animation
  • 402 Pages of Content
  • 60 Lecture Hours
  • Suitable for All Technical University Syllabus

Course Description

This course is designed for the brief description about Concept of conventions,Plane curves,Projection of points,Lines and plane surface,Projection of Solids and Orthographic projections.


  • To Understand the importance of engineering drawing(Instruments and Dimensioning)
  • To study about the method of geometrical construction and its applications
  • To Understand the principles of projection of points, lines and plane.
  • To Understand the principles of projection of solids.
  • To Understand the method of orthographic projectionsand their applications

Introduction to Engineering drawing - Introduction to Engineering drawing. Drawing instruments - Drawing instruments. Lettering – Introduction, Styles of lettering, Double stroke vertical lettering. Lines – Lines, Types of lines, Types of lines and its application, Line weights, Drawing sheet, Folding of drawing sheet, Material conventions. Dimensioning practice – Dimensioning, Elements of dimensioning, Surface finish, Indication of surface texture, Placing of dimensioning, Arrangements of dimensions, Rules for dimensioning standard features, Example. Scales – Introduction, Nature of scales, Representation of scale, Scales on drawings. Plain scale - Plain scales, Example. Diagonal scale - Diagonal scales, Example. Vernier Scale - Vernier scales, Example.


Geometrical constructions - To bisect a line, To bisect an arc, To divide a line into eight equal number of parts, To Bisect an angle, To Trisect an angle, Example, Construction of tangent lines, Example, To construct a square, To construct an equilateral triangle, To construct a regular hexagon, To construct any regular polygon. Conics – Conics, Construction of ellipse by eccentricity method (Directrix and Focus method), Construction of ellipse by arcs of circle method, Construction of ellipse by concentric circle method. Parabola - Construction of parabola by eccentricity method, Construction of parabola by rectangular method. Hyperbola - Construction of hyperbola by eccentricity method, Construction of rectangular hyperbola. Cycloid – Cycloid, Epicycloids, Hypocycloids. Involutes – Involute, Construction of involute of square, Helix on cone, Helix on cylinder, Spiral.


Projection – Projection, Orthographic projection, Planes of projection, Four quadrant, Six faces on the box, First angle projection, Third angle projection, Symbols for methods of projection, II and IV angle projections. Example Problem – Example. Free hand sketching - Free hand sketching, Problem.


Projection of points – Projection of points, Example. Projection of Lines - Projection of straight lines, Different positions of a straight line with respect to V.P and H.P, Example, Line inclined to both the reference planes, Example, Common data for all problems, Example, True length and true inclinations of a line, Rotating line method, Example, Rotating trapezoidal method, Example, Trace of a line, Example. Projection of plane surface - Projection of planes, Different positions of the plane with respect to HP and VP, Traces of plane, Example.


Projection of solids – Introduction, Polyhedra, Other polyhedral, Solids of revolution, Cylinder, Cone, Sphere, Frustums, Truncated solids, Right regular solids and oblique solids. Positions of the solid - Solid with axis perpendicular to HP, Example. Solid with axis perpendicular to VP - Solid with axis perpendicular to VP, Example. Solid with axis parallel to both HP and VP - Solid with axis parallel to both HP and VP, Example. Solid with axis parallel to VP and inclined to HP - Solid with axis parallel to VP and inclined to HP, Example. Solid with axis parallel to HP and inclined to VP - Solid with axis parallel to HP and inclined to VP, Example.