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# 1.projection of solids

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• 1. Engineering Drawing Page 1 of 6 Topic No.-1 Projection of solids II Vimal K. Patel II Mechanical Engineering Department, SVNIT, Surat – 395007 Contact :- +919099573650 E-Mail –vimalpatel.svnit@gmail.com ` Ex. 1 : A pentagonal prism, side of base 25 mm and axis length 60 mm is kept on H.P. on one of its base such that one of its edge of base becomes perpendicular to V.P. Draw front view and top view of solid in this first position. Now prism is tilted in such a way that one of its base corner remains in H.P. and longer edge passing from this edge makes 300 with H.P. and remains parallel to V.P. Draw projections of solids in this second position. Again prism is tilted in such a way that top view of axis makes 450 with V.P. Draw projections of solid in this third position. 1 Projection of solids
• 2. Engineering Drawing Page 2 of 6 Topic No.-1 Projection of solids II Vimal K. Patel II Mechanical Engineering Department, SVNIT, Surat – 395007 Contact :- +919099573650 E-Mail –vimalpatel.svnit@gmail.com Ex.2 A pentagonal prism, side of base 30 mm and axis length 65 mm is kept on the V.P. on one of is base edge such that the rectangular face containing that base edge makes an angle of 300 with V.P. Draw the projections of the prism when the base edge in V.P. makes an angle of 300 with H.P.
• 3. Engineering Drawing Page 3 of 6 Topic No.-1 Projection of solids II Vimal K. Patel II Mechanical Engineering Department, SVNIT, Surat – 395007 Contact :- +919099573650 E-Mail –vimalpatel.svnit@gmail.com Ex.3 A hexagonal pyramid, side of base 30 mm and axis length 70 mm is resting on H.P. on one of its base edge in such a way that its apex is 55 mm above the H.P. Draw the projections of the pyramid when the base edge which is on the H.P. is parallel to V.P. keeping apex of the solid in V.P.
• 4. Engineering Drawing Page 4 of 6 Topic No.-1 Projection of solids II Vimal K. Patel II Mechanical Engineering Department, SVNIT, Surat – 395007 Contact :- +919099573650 E-Mail –vimalpatel.svnit@gmail.com Ex.4 A frustum of a cone, base diameter 60 mm, top diameter 30 mm and height 50 mm is lying on H.P. on one of its generator. Draw the projections of the frustum when plan of axis makes 300 to the V.P.
• 5. Engineering Drawing Page 5 of 6 Topic No.-1 Projection of solids II Vimal K. Patel II Mechanical Engineering Department, SVNIT, Surat – 395007 Contact :- +919099573650 E-Mail –vimalpatel.svnit@gmail.com Ex.5 A composite solid made of a half cone (cut through axis) of diameter 60 mm and half hexagonal pyramid (cut through axis) of side 30 mm. The height of the composite solid is 60 mm. The solid is kept on H.P. on one of its base edge of hexagonal pyramid such that the triangular face containing that base edge is perpendicular to H.P. and inclined to V.P. at an angle of 450 Draw the projections of the solids when triangular face is nearer to observer.
• 6. Engineering Drawing Page 6 of 6 Topic No.-1 Projection of solids II Vimal K. Patel II Mechanical Engineering Department, SVNIT, Surat – 395007 Contact :- +919099573650 E-Mail –vimalpatel.svnit@gmail.com Ex.6 A pentagonal pyramid side of base 50 mm and 85 mm height of axis , is freely suspended by a string from one of its corner of base. Draw the projections of the pentagonal pyramid when its axis makes an angle of 300 with V.P.