The document outlines the course 'Engineering Graphics' offered by Sagar Institute of Science Technology & Research (SISTEC-R), providing an introduction to technical drawing and its applications across various engineering disciplines. It covers essential drawing instruments, types of drawings, and emphasizes the importance of graphical communication in engineering. Additionally, it discusses lettering techniques in drawings and the fundamental differences between artistic and engineering drawings.

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Sagar Institute of Science Technology & Research (SISTec-R) Bhopal
| www.sistecr.ac.in | c.kpardhi@sistec.ac.in |
Semester - I
Course Name - Engineering Graphics
Course Code - BT-105
Course Co-ordinator
Prof. C. K. Pardhi
Associate Professor Department of Mechanical Engineering
DEPARTMENT OF MECHANICAL ENGINEERING

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Engineering Graphics - (BT-105) SISTec-R Bhopal
INTRODUCTION TO ENGINEERING GRAPHICS
Content
 What is Engineering Graphics
 Role and Application of Engineering Graphics
 Drawing Instruments
 Lines and Types of Lines

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Engineering Graphics - (BT-105)
SISTec-R Bhopal
The art of graphical representation of any
object or any idea on a plain paper is called
Drawing.
What is Drawing ?

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Types of Drawings
Artistic
Sketches
(conceptual)
Diagrams
(design & technical)
Drawings
(technical/engineering)
Diagram
(design plan)
All Drawings
Technical
Diagram
(technical)
simulated perspective
Oblique
projection
Isometric
projection
Multi view
orthographic

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The art of representation of an object by the
artist by his imagination or by keeping the object
before him.
e.g. paintings, cinema posters, advertisement
boards, etc.
1.Artistic Drawing
Engineering Graphics - (BT-105) SISTec-R Bhopal

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What is an Engineering Drawing ?
“An Engineering Drawing is a technical (not artistic)
drawing which clearly defines and communicates about
engineering parts/items to interested ones.
Engineering Graphics - (BT-105) SISTec-R Bhopal
Engineering Drawing is one of the basic course
to study for all engineering discipline.

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Difference between Artistic & Engineering Drawing

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Engineering Graphics - (BT-105) SISTec-R Bhopal
ENGINEERING GRAPHICS –
A Language of Engineers
Universal Graphical Language for Communication
between Engineers
House Design done by Architect
Engineer
House Construction done by Civil
Engineers

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Role of Graphics
• Visualization
• Communication
• Documentation
Engineering Graphics - (BT-105) SISTec-R Bhopal

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Applications of Engineering
Drawing
For Mechanical
Engineers
For Civil
Engineers
For Electrical
Engineers
For CS
Engineers
Engineering Graphics - (BT-105) SISTec-R Bhopal

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Engineering Graphics - (BT-105) SISTec-R Bhopal
1 Drawing Board 9 Circle Master
2 Mini Drafter 10 French Curves
3 Set-squares (45°-45° & 60°-90°) 11 Drawing paper & drawing sheet
4 T-square 12 Drawing pencil (Lead pencil)
5 Protractor (180°, 360°) 13 Sharpener
6 Scales 14 Eraser
7 Roll & Draw 16 Drawing pins & clips
8 Compass (drafting) 17 Duster or handkerchief
Manual drafting on paper is not possible without drawing instruments. Quality of drawing is also
dependent on instruments used to draw particular drawing. For example, if your compass is loose
then you might not get exact radius of circle that you want to draw as per in data.
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DRAWING INSTRUMENTS
Following is the list of drawing instruments that required making engineering
drawings on paper with perfection

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DRAWING INSTRUMENTS
Engineering Graphics - (BT-105) SISTec-R Bhopal

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Engineering Graphics - (BT-105) SISTec-R Bhopal
DRAWING SHEET SIZE

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Engineering Graphics - (BT-105) SISTec-R Bhopal
Layout of Drawing Sheet
Title Block (Sample)

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Engineering Graphics - (BT-105) SISTec-R Bhopal
Line Thickness:
Thickness varied according to the use of pen or pencil and the size & type of
the drawing. For pencil, the lines can be divided into two line-groups:
Line-group
(mm)
Thickness
Lines
0.2 Medium Out lines, dotted lines, cutting plane
lines
0.1 Thin Centre lines, section lines, dimension
lines, extension lines, construction
lines, leader lines, short-break lines
and long-break lines.
LINE
Engineering Drawing is the game of line .
Different types of lines are used to describe various parts of the
object.

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Engineering Graphics - (BT-105) SISTec-R Bhopal

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Engineering Graphics - (BT-105) SISTec-R Bhopal

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Lettering
Writing of titles, dimensions, notes and other
important particulars on a drawing is called
lettering.
It is an important part of a drawing.
Lettering
The writing of alphabets and numerals such as A, B, C,
D…………………….Z and 1, 2, 3……………9, 0 respectively is
called Lettering.

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•Classification Of Lettering
The lettering, in general, is classified in two categories :-
1.Gothic Lettering
2.Roman Lettering.
•Gothic Lettering
Lettering having all the alphabets or numerals of uniform
thickness is called Gothic Lettering.
1.Vertical Gothic Lettering
2.Italic or Inclined Gothic Lettering.
•Single Stroke Vertical Gothic Lettering
These are vertical letter having thickness of each line of
alphabet or numerals etc. Same as the single stroke of a
pencil. Since Stroke means that the letter is written with one or
more stems or curves and each made with single stroke.

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Engineering Graphics - (BT-105)
Single Stroke Vertical Gothic Lettering
Single Stroke Inclined Gothic Lettering

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Double Stroke Vertical Gothic Lettering

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Engineering Graphics - (BT-105)
THANK YOU
For further details please contact
Prof. C. K. Pardhi
ckpardhi@sistec.ac.in
Department of Mechanical Engineering
Sagar Institute of Science Technology & Research
(SISTec-R)Bhopal