Department : MECHANICAL ENGINEERING
Course Code : A10301
Course Title : ENGINEERING DRAWING Course Category : Core
Course Structure : Lectures Tutorials Practical’s Credits
2 - 4 6
I. Course Overview:
One of the best ways to communicate one's ideas is through some form of picture or drawing. This is especially true for the engineer. An engineering drawing course focuses on usage of drawing instruments, lettering, construction of geometric shapes, etc. Students study use of dimensioning, shapes and angles or views of such drawings. Dimensions feature prominently, with focus on interpretation, importance and accurate reflection of dimensions in an engineering drawing. Other areas of study in this course may include projected views, pictorial projections and development of surfaces. This course also gives basic concepts for studying machine drawing, building drawing, circuit drawings etc.
II. Prerequisite(s):
III. Marks Distribution:
Sessional Marks (25)
University End Exam Marks
Total Marks Mid Semester Test:
There shall be 3 midterm examinations. Each midterm examination consists of one subjective paper for 15 marks with duration of 1 hour 30 minutes.
Subjective paper contains of 4 full questions of which, the student has to answer 2 questions, each question carrying 7.5 marks. Drawing charts and assignment charts will be evaluated for 10 marks.
First midterm examination shall be conducted for 1st unit of syllabus and second midterm examination shall be conducted for 2-3 units. Assignments should be submitted before the conduct of the mid examinations. The total marks secured by the student in each midterm examination are evaluated for 25 marks, and the average of the three midterm examinations shall be taken as the final marks secured by each candidate.
75 100
IV. Evaluation Scheme:
S. No. Component Duration Marks
1 I Mid Examination 1 hour and 30 min 15
2 Day to day work 10
TOTAL 25
3 II Mid Examination 1 hour and 30 min 15
4 Day to day work 10
TOTAL 25
5 III Mid Examination 1 hour and 30 min 15
6 Day to day work 10
TOTAL 25 MID Examination marks to be considered as average of above 3 MID’s TOTAL
7 EXTERNAL Examination 3 hours 75
GRAND TOTAL 100
V. Course Objectives:
The objectives of the course are to enable the student;
I. To have the knowledge of interpretation of dimensions of different quadrant projections.
II. To understand the basic principles of engineering drawing III. To understand the construction of scales
IV. To have the knowledge of generating the pictorial views
V. To understand intricate details of components through sections and to develop its surfaces VI. Course Outcomes:
a. Ability to discuss the conventions and methods of engineering drawing
b. Ability to demonstrate drafting practices, visualization and projection skills useful for conveying ideas, design and production of components and assemblies in engineering applications.
c. Ability to perform basic sketching techniques of engineering components
d. Ability to draw the orthographic and pictorial views of a given engineering component e. Ability to increasingly use architectural and engineering scales
VII. Syllabus:
ENGINEERING DRAWING UNIT – I
INTRODUCTION TO ENGINEERING DRAWING
Principles of Engineering Drawing – Various Drawing Instruments and their Use (general exercises) Conventions in Drawing – Lettering – BIS Conventions and geometrical constructions
Curves used in Engineering Practice & their Constructions: Ellipse-eccentricity and other methods, Parabola-eccentricity and other methods, Hyperbola- eccentricity and other methods including rectangular hyperbola
Cycloid, Epicycloid and Hypocycloid Involutes
Scales: Construction of different types of scales, Plain scale, Diagonal scale, Vernier scale UNIT – II
ORTHOGRAPHIC PROJECTIONS IN FIRST ANGLE
Projection : Principles of Orthographic Projections – Conventions – First and Third Angle Projections Projections of Points : projection of points in all four quadrants
Projections of Lines : Lines parallel, perpendicular, inclined to both planes, True lengths and angles, traces Projections of Planes: plane parallel, perpendicular and inclined to one reference plane. Plane inclined to both the reference planes
UNIT-III
PROJECTIONS OF SOLIDS: Projections of Regular Solids, cube, prisms, pyramids, tetrahedron, cylinder and cone, axis inclined to both planes
SECTIONS AND SECTIONAL VIEWS: Right Regular Solids – Prism, Cylinder, Pyramid, Cone – Use of auxiliary views.
UNIT – IV
Development of surfaces: Development of surfaces of right regular solids- Prisms, Cylinder, Pyramids, Cone and their parts. Frustum of solids.
INTERSECTION OF SOLIDS: Intersection of Cylinder Vs Cylinder, Cylinder Vs Prism, Cylinder Vs Cone.
UNIT – V
ISOMETRIC PORJECTIONS: Principles of Isometric Projection – Isometric Scale – Isometric Views – Conventions, plane figures, simple and compound Solids- Isometric projection of objects having non-isometric lines. Isometric projection of parts with spherical surface.
TRANSFORMATION OF PROJECTIONS: Conversion of Isometric Views to Orthographic Views.
Conversion of Orthographic Views to Isometric Views – simple objects
PERSPECTIVE PROJECTIONS: Perspective view: Points, lines and plane figures, Vanishing Point Methods (General Method only).
VIII. List of Text Books / References / Websites / Journals / Others TEXT BOOKS:
T1. Engineering Drawing, N.D. Bhatt
T2. Engineering Drawing, Basant Agrawal, TMH REFERENCES:
R1. Engineering Drawing, K L Narayana, P Kannaiah R2. Engineering Drawing, P J Shah, SChand publications R3. Engineering Drawing , Johle, TMH
R4. Engineering Drawing, K Venu Gopal, V Prabhu Raja, New age publications IX. Course Plan:
The course plan is meant as a guideline. There may probably be changes.
Lecture
No. Course Learning Outcomes Topics to be covered Reference
1-6 Outline and Use of various drawing instruments
UNIT-I
Introduction to engineering drawing:
Principles of Engineering Drawing – Various Drawing Instruments and their Use (general exercises)
T1,R1
7-9 Practice lettering and Draw conventions
Conventions in Drawing – Lettering – BIS
Conventions T1,R1
10-12 Construct different 2d planes Geometrical Constructions T1,R1 13-15
Construct an ellipse Curves used in Engineering Practice &
their Constructions: Ellipse-eccentricity and other methods
T2, T1 16-18 Construct a parabola Parabola-eccentricity and other methods T1,T2 19-21 Construct a hyperbola Hyperbola- eccentricity and other methods
including rectangular hyperbola T1,T2 22-30 Differentiate and draw cycloidal
curves
Cycloid, Epicycloid and Hypocycloid
T1,T2,R1
31-33 Define and draw an involute Involutes T2, R1
34-48 Determine scale factor and construct scales
Scales: Construction of different types of scales, Plain scale, Diagonal scale, Vernier scale
T1,T2,R1
49-51
Demonstrate projections of objects with respect to four quadrants
UNIT-II
Orthographic projections in first angle:
Projection: Principles of Orthographic Projections – Conventions – First and Third Angle Projections
T2,R1
52-54 Explain and draw the projections of points
Projections of Points: projection of points in
all four quadrants T1,T2
55-66 Explain and draw the projections of lines
Projections of Lines: Lines parallel, perpendicular, inclined to both planes, True lengths and angles, traces
T1,T2,R1
67-72 Prepare different types of planes and draw the projections of planes
Projections of Planes: plane parallel, perpendicular and inclined to one reference plane. Plane inclined to both the reference planes
T2,R1
73-87
Prepare different types of solids and draw the projections of solids
UNIT-III Projections of solids
Projections of Regular Solids, cube, prisms, pyramids, tetrahedron, cylinder and cone, axis inclined to both planes
T1,T2,R1
88-96
Explain the importance of sectioning and draw the sectional views
SECTIONS AND SECTIONAL VIEWS:
Right Regular Solids – Prism, Cylinder, Pyramid, Cone – Use of auxiliary views
T1,T2,R1
97-108 Develop the surfaces of solids and their parts
UNIT-IV
Development of surfaces: Development of surfaces of right regular solids- Prisms, Cylinder, Pyramids, Cone and their parts.
Frustum of solids.
T2,R1
109-117
Combine two solids and sketch the curve of intersection
INTERSECTION OF SOLIDS:
Intersection of Cylinder Vs Cylinder, Cylinder Vs Prism, Cylinder Vs Cone
T2,R1
118-123 Construct 3d models of objects
UNIT-V
ISOMETRIC PORJECTIONS: Principles of Isometric Projection – Isometric Scale – Isometric Views – Conventions, plane figures, simple and compound Solids
T1,T2,R1
124-126
Construct 3d models of spherical and objects with non-isometric lines
Isometric projection of objects having non- isometric lines. Isometric projection of parts with spherical surface.
T1,T2,R1
127-135 Convert isometric views to orthographic views and vice-versa.
TRANSFORMATION OF PROJECTIONS:
Conversion of Isometric Views to Orthographic Views. Conversion of Orthographic Views to Isometric Views – simple objects
T1,T2,R1
136-144 Construct the perspective views of different objects
PERSPECTIVE PROJECTIONS:
Perspective view: Points, lines and plane figures, Vanishing Point Methods (General Method only).
T1,T2
X. Mapping of course engineering drawing outcomes with mechanical engineering program outcomes:
Program Outcomes
Course Outcomes
a b c D e f g h i j k l
a X
b X
c X
d X X
e X
XI. Mapping of course engineering drawing objectives with mechanical engineering program outcomes:
Program Outcomes
Course Objectives
a b c d e f g h i j k l
I X X
II X
III X X
IV X X X
V X X
XII. Program Outcomes:
Graduates of the Mechanical Engineering program will attain:
