GE 106 - ENGINEERING DRAWING - I DPMT/DPT SEMESTER-I, CIPET

                            DPMT                         

SEMESTER-I   

GE 106 - ENGINEERING DRAWING - I

Unil I (30 Hours)

The Importance of Engineering Graphics: Explanation of the scope and objective of Engineering Drawing - its importance as a graphic communication- need for preparmg drawing as per standards - BIS. SP 46

Drawing Instruments: Basic drawing instruments - Mini drafter - Setsquarc - compass • (lenders - drawing boards - Pencils - Drawing papers- French curves - Stencils - Selection and method of using them.

Drawing Standards: Size of drawing sheets - Layout of drawing sheet - Title Blocks - Types lines - Folding of drawing sheets.

Free hand Lettering and Numbering: Need for legible lettering and numbering on drawings - selection of suitable size of lettering for different drawing, writ mg of Engineering drawing titles and notes using both vertical and sloping styles.

Dimensioning: Function of dimensioning - need for dimensioning • engineering drawing according to BIS - Notation used m dimensioning - Dimension line - Extension line - Arrow heads and leader - System of dimensions - Method I and Method II.

Geometric Construction: Construction of regular polygon - given the length of its side. Conics construction of ellipse, parabola and hyperbola by eccentricity method, construction of cycloid, construction of involutes of square and circle, drawing of tangents and normal to the above curves.

Unit II (40 Hours)

Principles of Orthographic Projection Explanation of the meaning of orthographic projection using a viewing box and a model- number of views obtained need of only three views for displaying the object • explanation of the meaning of first angle and third angle projection - symbol of projection-Front view, top view and side view-sketching these views for a number of engineenng objects

Unit III (20 Hours)

Projection of Points, Lines and Planes Projection of points in different quadrants, projection of straight lines parallel to one or both planes, parallel to one plane - perpendicular to other - me lined to one plane and parallel to other line inclined to both planes (in first quadrant). Methods of finding true length and its inclmation with the reference planes Projection of planes and polygonal surface - parallel to one plane and pcrpcrxfccular to other plane (in first quadrant).

Unit IV (30 Hours)

👉  Projectionof Solids : Projection of simple solids like 👉 Prism, 👉 Pyramid,  👉 Cylinder and 👉 Cone when the axis is parallel to one plane and perpendicular to other plane in first quadrant

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