# GE8152 ENGINEERING GRAPHICS NOTES 2017 REGULATION

In this post we have posted some notes on GE8152 ENGINEERING GRAPHICS of ENGINEERING SCIENCES for ANNA UNIVERSITY AFFILIATED COLLEGES STUDENTS.

Here We have listed the the notes whichever we could collect for HS8151 COMMUNICATIVE ENGLISH subject, We think that it will be helpful for your exam preparation.

#### OBJECTIVES:

đź‘‰ To develop in students, graphic skills for communication of concepts, ideas and design of

Engineering products.

đź‘‰ To expose them to existing national standards related to technical drawings.

#### CONCEPTS AND CONVENTIONS (Not for Examination)

Importance of graphics in engineering applications â€“ Use of drafting instruments â€“ BIS conventions and specifications â€“ Size, layout and folding of drawing sheets â€“ Lettering and dimensioning.

#### UNIT I PLANE CURVES AND FREEHAND SKETCHING

Basic Geometrical constructions, Curves used in engineering practices: Conics â€“ Construction of ellipse, parabola and hyperbola by eccentricity method â€“ Construction of cycloid â€“ construction of involutes of square and circle â€“ Drawing of tangents and normal to the above curves. Visualization concepts and Free Hand sketching: Visualization principles â€“Representation of Three Dimensional objects â€“ Layout of views- Freehand sketching of multiple views from pictorial views of objects

#### UNIT II PROJECTION OF POINTS, LINES AND PLANE SURFACE

Orthographic projection- principles-Principal planes-First angle projection-projection of points. Projection of straight lines (only First angle projections) inclined to both the principal planes – Determination of true lengths and true inclinations by rotating line method and traces Projection of planes (polygonal and circular surfaces) inclined to both the principal planes by rotating object method.

#### UNIT III PROJECTION OF SOLIDS

Projection of simple solids like prisms, pyramids, cylinder, cone and truncated solids when the axis is inclined to one of the principal planes by rotating object method.

#### UNIT IV PROJECTION OF SECTIONED SOLIDS AND DEVELOPMENT OF SURFACES

Sectioning of above solids in simple vertical position when the cutting plane is inclined to the one of the principal planes and perpendicular to the other â€“ obtaining true shape of section. Development of lateral surfaces of simple and sectioned solids â€“ Prisms, pyramids cylinders and cones.

#### UNIT V ISOMETRIC AND PERSPECTIVE PROJECTIONS

Principles of isometric projection â€“ isometric scale â€“Isometric projections of simple solids and truncated solids – Prisms, pyramids, cylinders, cones- combination of two solid objects in simple vertical positions – Perspective projection of simple solids-Prisms, pyramids and cylinders by visual ray method .

#### OUTCOMES:

On successful completion of this course, the student will be able to:

đź‘‰ Familiarize with the fundamentals and standards of Engineering graphics

đź‘‰ Perform freehand sketching of basic geometrical constructions and multiple views of objects.

đź‘‰ Project orthographic projections of lines and plane surfaces.

đź‘‰ Draw projections and solids and development of surfaces.

đź‘‰ Visualize and to project isometric and perspective sections of simple solids.

#### TEXT BOOKS:

1. Natrajan K.V., â€•A text book of Engineering Graphicsâ€–, Dhanalakshmi Publishers, Chennai, 2009.

2. Venugopal K. and Prabhu Raja V., â€•Engineering Graphicsâ€–, New Age International (P) Limited, 2008.

#### REFERENCES:

1. Bhatt N.D. and Panchal V.M., â€•Engineering Drawingâ€–, Charotar Publishing House, 50th Edition, 2010.

2. Basant Agarwal and Agarwal C.M., â€•Engineering Drawingâ€–, Tata McGraw Hill Publishing Company Limited, New Delhi, 2008.

3. Gopalakrishna K.R., â€•Engineering Drawingâ€– (Vol. I&II combined), Subhas Stores, Bangalore, 2007.

4. Luzzader, Warren.J. and Duff,John M., â€•Fundamentals of Engineering Drawing with an introduction to Interactive Computer Graphics for Design and Production, Eastern Economy Edition, Prentice Hall of India Pvt. Ltd, New Delhi, 2005.

5. N. S. Parthasarathy and Vela Murali, â€•Engineering Graphicsâ€–, Oxford University, Press, New Delhi, 2015.

6. Shah M.B., and Rana B.C., â€•Engineering Drawingâ€–, Pearson, 2nd Edition, 2009.

#### Publication of Bureau of Indian Standards:

1. IS 10711 â€“ 2001: Technical products Documentation â€“ Size and lay out of drawing sheets.

2. IS 9609 (Parts 0 & 1) â€“ 2001: Technical products Documentation â€“ Lettering.

3. IS 10714 (Part 20) â€“ 2001 & SP 46 â€“ 2003: Lines for technical drawings.

4. IS 11669 â€“ 1986 & SP 46 â€“ 2003: Dimensioning of Technical Drawings.

5. IS 15021 (Parts 1 to 4) â€“ 2001: Technical drawings â€“ Projection Methods.

#### Special points applicable to University Examinations on Engineering Graphics:

1. There will be five questions, each of either or type covering all units of the syllabus.

2. All questions will carry equal marks of 20 each making a total of 100.

3. The answer paper shall consist of drawing sheets of A3 size only. The students will be permitted to use appropriate scale to fit solution within A3 size.

4. The examination will be conducted in appropriate sessions on the same day.