1. Orthographic Drawing:
Draw the three orthographic views for the following 3D objects. Use a scale 1:1. All dimensions
are in millimeter. Use 1st angle for figures 1A and 1B and 3rd angle for Figures 1C and 1D
ASSIGNMENT NO. 2
FREEHAND SKETCHING OF ORTHOGRAPHIC VIEWS
An orthographic projection is a multiview drawing used to show all of the features of an object.
Orthographic drawings are the result of projecting the ima
LETTERING AND LINES
At the end of this chapter students should be able to:
Write letters according to the standard
Explain the different line types
Mention the application of each line type in
3.1 Letter Styles
Introduction; Basic concepts of engineering
drawing; Instruments and their uses; First and
third angle projections; Orthographic drawings;
Principal views, Isometric views; Missing lines and
views; Sectional views and
3. ng Curves - I 3.
Engineering Curves - II
Loci of Points
Orthographic Projections - Basics
Conversion of Pictorial View into Orthographic Views
Projections of Points and Lines
Projection of Planes
A Text Book on
Shiksha Kendra, 2, Community Centre, Preet Vihar, Delhi-110 092 India
A text book on Engineering Graphics, Class XII.
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FIRST EDITION 2010 CBSE, India
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