Engineering/Architectural Graphics - part I - Orthographic projection

By Prof. Avlokita Agrawal   |   IIT Roorkee
Learners enrolled: 165
ABOUT THE COURSE : All phases of manufacturing or construction require the conversion of new ideas and design concepts into the basic line language of graphics. Therefore, there are many areas (civil, mechanical, electrical, architectural and industrial) in which the skills of drafting play major roles in the design and development of new products or construction. Engineering Graphics is the language of architects and engineers. Just like any other language, we need to learn the vocabulary and grammar in order to be able to communicate. Engineering graphics course is the course which imparts vocabulary and grammar for the language of architects and engineers. Engineering graphics has two distinct components – 2D and 3D. In this course we will cover the topics related to 2D in graphics.
This course is designed to address: • to enable you to communicate in engineering/architectural language of drawings • to prepare you to use the techniques, skills, and modern engineering tools necessary for engineering practice
The student will learn : • Introduction to engineering design and its place in society • Exposure to the visual aspects of engineering design • Exposure to engineering graphics standards • Exposure to engineering communication

Bachelor of Engineering in any discipline Bachelor of Architecture
INDUSTRIES  SUPPORT     : Not applicable
Course Status : Upcoming
Course Type : Core
Duration : 8 weeks
Start Date : 23 Jan 2023
End Date : 17 Mar 2023
Exam Date : 26 Mar 2023 IST
Enrollment Ends : 30 Jan 2023
Category :
  • Architecture and Planning
Credit Points : 2
Level : Undergraduate

Page Visits

Course layout

Week 1:Lecture 1:Introduction to engineering graphics, Principles of Engineering Graphics and their significance,
      Lecture 2:usage of Drawing instruments, stationary materials required – scales, protractor, French curves, papers, pencils, erasers, drawing pins, drafting machine, T-Pulley
      Lecture 3: Sheet layout, fixing the sheet on board, cleaning the instruments
      Lecture 4:Types of lines, Graphic symbols
      Lecture 5:Lettering,
Week 2:Lecture 1:Dimensioning
      Lecture 2:Scales – Plain, Diagonal and Vernier Scales;
      Lecture 3:Basic Geometrical construction – perpendicular lines, parallel lines, bisecting an angle etc.
      Lecture 4: Curves used in engineering practice
      Lecture 5: Conic sections including the Rectangular Hyperbola (General method only); Cycloid, Epicycloid, Hypocycloid and Involute;
Week 3: Lecture 1:Introduction to orthographic projection, principles of projection, Methods of Projection, Planes of projection, four quadrants
       Lecture 2:First angle projection, third angle projection, reference line
       Lecture 3:Projection of points in different quadrants
       Lecture 4:Loci of points
       Lecture 5:Projection of lines - introduction
Week 4:Lecture 1:Projection of lines parallel to both the reference planes
      Lecture 2:Projection of line parallel to one and perpendicular to another plane
      Lecture 3:Projection of lines inclined to one plane
      Lecture 4:Projection of lines inclined to both the planes
      Lecture 5: Projection of a point and line on auxiliary plane
Week 5:Lecture 1:Projection of planes perpendicular to both the reference planes
      Lecture 2:Projection of planes parallel to both the reference planes
      Lecture 3:Projection of planes parallel to one and perpendicular to another plane
      Lecture 4:Projection of planes inclined to one plane
      Lecture 5:Projection of planes inclined to both the planes
Week 6:Lecture 1:Types of solids
      Lecture 2:Projection of solids in simple positions
      Lecture 3:Projection of solids with axis inclined to one of the reference planes and parallel to another
      Lecture 4:Projection of solids with axis inclined to both the planes
      Lecture 5:Projection of spheres
Week 7: Lecture 1:Introduction to section of solids, section planes, true shape of sections
      Lecture 2:Sections of Prisms
      Lecture 3:Sections of Pyramids
      Lecture 4:Sections of Cylinders
      Lecture 5:Sections of Cones
Week 8:Lecture 1:Sections of Spheres
      Lecture 2:Development of surfaces- cubes, prisms, pyramids
      Lecture 3:Development of surfaces- cylinders, spheres
      Lecture 4:Intersection of surfaces – two Prisms, two cones, two cylinders
      Lecture 5:Intersection of surfaces – one prism and one cone, one cone and one cylinder, one sphere and one prism

Books and references

(i) Bhatt N.D., Panchal V.M. & Ingle P.R., (2014), Engineering Drawing, Charotar PublishingHouse
(ii) Shah, M.B. & Rana B.C. (2008), Engineering Drawing and Computer Graphics, PearsonEducation
(iii) Agrawal B. & Agrawal C. M. (2012), Engineering Graphics, TMH Publication
(iv) Narayana, K.L. & P Kannaiah (2008), Text book on Engineering Drawing, Scitech Publishers

Instructor bio

Prof. Avlokita Agrawal

IIT Roorkee
I Am Dr. Avlokita Agrawal. I earned Bachelor of Architecture degree from IIT Roorkee in 2003 and PhD from IIT Roorkee in 2010. Right from college, the subject which most interested me were climatology and passive designing which were taught to us by one of the most accomplished teachers of those times, Dr. M R Sharma and Dr. I C Sharma, both from CBRI. After B Arch, I pursued PhD where I studied Impact of Vaastushastra on thermal comfort in traditional Havelis of Rajasthan. While pursuing PhD and post completion of PhD, I worked for companies like Asahi India Glass (where I headed their Green Design Division) and Honeywell international (where I worked in Corporate Affairs division with a focus on building energy efficiency vertical). In corporate jobs, I was mainly working toward various aspects of building energy efficiency. After joining back academics, I have mainly taught subjects like Sustainable Built Environment. I also manage the IGBC student chapter at IIT Roorkee.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 
26 March 2023 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.


Average assignment score = 25% of average of best 6 assignments out of the total 8 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Roorkee.It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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