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# Study 11th STANDARD - Engineering Graphics

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PLANE GEOMETRY
Printing English alphabets (capital & small) numerals in standard proportions. Unidirectional/aligned system of dimensioning as per SP : 46-2003 (Revised)

Unit 1: Construction of lines, angles and their divisions. Simple questions based on triangles, square, rhombus, trapeziums, regular polygons-pentagon, hexagon and octagon.08 Pds.

Unit 2: Construction of circles, external and internal tangents of circles, inscribing, circumscribing circles in equilateral triangle, square, rhombus, regular polygons-pentagon, hexagon and octagon. 10Pds.

Unit 3: Construction of Engineering curves : (a) Ellipses by concentric circles, intersecting arcs and intersecting lines. (b) Parabola by intersecting lines and intersecting arcs (c) Involute of a circle, cycloid, helix and sine curve. 20 Pds.

SOLID GEOMETRY

Unit 4: Methods of orthographic projections and dimensioning strictly as per SP: 46- 2003 revised conventions. Projection of points, lines, regular plane figure and right regular solids such as cubes, prisms and pyramids (square, triangular, pentagonal and hexagonal), cones, cylinders, spheres, hemi-spheres and frustum of pyramids and cone when they are kept with their axis (a) perpendicular, to HP/VP (b) parallel to one plane and inclined to the other (c) parallel to HP and VP both. 40 Pds. Unit 5: Section of solids under the same conditions mentioned above made by the horizontal, vertical and inclined planes, also showing true-shape of section. 45 Pds.

MACHINE DRAWING

Unit 6: Orthographic projections of simple machine blocks. 40 Pds.

Unit 7: Construction of Isometric scale showing main divisions of 10 mm and smaller divisions of 1 mm each. Isometric projection(drawn to isometric scale) of figures such as triangles, squares, pentagons, hexagons, circles and semi-circles with their surface parallel to HP or VP and its one side or diagonal or diameter should be either parallel or perpendicular toHP/VP.

Unit 8: Development of the surfaces of following solids: 1. Cube, cuboid, prisms–triangular, square, pentagonal and hexagonal. 2. Pyramids (triangular, square, pentagonal and hexagonal). 3. Right circular cylinder and cone 10 Pds.

## 11th Standard Subjects

 Accountancy sociology Agriculture Biology Biotechnology Business-Studies Chemistry Computer-Science Economics Engineering-Graphics English Entrepreneurship Geography History Home-Science Informatic-Practices Mathematics Multimedia-and-web-technology Philosophy Physics Political-Science Psychology