Solve 2011 CBSE : Engineering graphics question paper Set 1
1. (a) Construct an isometric scale, 100 mm long. 4
(b) Construct the isometric projection, to isometric scale, of a hemisphere (diameter = 80 mm), resting on H.P. with its curved
surface on it and top circular face, parallel to H.P. The axis is perpendicular to H.P. Draw the axis, marking the center of its
circular face and its height from H.P. Give dimensions. 7
(c) A square prism (base edge 80 mm and height 30 mm) is resting i1on H.P., with its square base on it. One of the base edges of the prism, is parallel to V.P.
A hexagonal pyramid (base edge = 30 mm and height = 70 mm} is placed, centrally, on its top square face, with its hexagonal base on it.
One of the base edges of the pyramid, is parallel to V.P. Draw the isometric projection of the solids, placed together, to isometric scale. Draw the common axis and show the direction of viewing. Give all dimensions. 14
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2. (a) Draw to scale 1 : 1, the full sectional front view of a single riveted lap joint. Take thickness of the plates as 16 mm. Give standard dimensions. 9
(b) Sketch free-hand the front view and top view of a 90° flat countersunk-head screw of size, M20. Keep the axis vertical. Give standard dimensions. 6
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CBSE Class 12 Engineering graphics Question Paper 2011 Set 1
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