Engineering Graphics University Important Questions.docx
- 1. UNIT-I 1. Construct an ellipse when the distance between the focus and directory is 50 mm and eccentricity is 2/3. Also, draw the tangent and normal to any point on the curve. 2. A circle of 60 mm diameter rolls over a horizontal line clockwise for 1½ revolution. Draw the path traced by the point P on the circumference of the circle. Also, draw a tangent and normal at any point on the curve. 3. Construct a parabola when the distance between the focus and directrix is 50 mm. Also, draw the tangent and normal to any point on the curve. 4. Construct a cycloid given the radius of the generating circle is 30 mm. Also, draw a tangent and normal at any point on the cycloid. 5. One end A of line AB, 75 mm long is 20 mm above HP and 25 mm in front of VP. The line is Inclined at 30o to HP and the top view makes 45o VP. Draw the projection of the line and find the inclinations with the vertical plane. 6. A line AB 75 mm long has its end A in both HP and VP. The line is kept inclined at 45o to HP and 30o to VP. Draw its projections. 7. Draw the projection of a pentagonal plate whose side is 30 mm long, which is rest on HP by one of its edges and is inclined at 45o to VP. The surface of the plate is inclined at 30o to HP . 8. A hexagonal lamina of side 30 mm rests on one of its sides on VP and is inclined at 40o to HP. Its surface is inclined 350 to VP. Draw its projection. 9. A pentagonal prism of the base side 30 mm and axis length 60 mm is resting on HP on one of its base corners with its axis inclined at 40° to HP and parallel to the VP. Draw its projections when the base sides containing the resting corner are equally inclined to HP. 10. A cylinder of base diameter 50 mm and axis length 70 mm is resting on HP on a point on the circumference of the base with its axis inclined at 50o to HP and parallel to VP. Draw its projections. 11. A hexagonal pyramid of base side 30 mm and axis length 60 mm is resting on HP on one of its base corners with its axis inclined at 35o to HP. The base sides containing the resting corner are equally inclined to HP. Draw its projections. 12. A cone with a base diameter of 50 mm and axis length of 60 mm is resting on HP at a point on the circumference of the base. Its base is inclined at 50o to HP and perpendicular to VP. Draw its projections. 13. Draw the front, top and left and right hand side view of the given
- 2. 14. 15. A pentagonal pyramid of base side 20 mm and altitude 55 mm rests on its base on the HP with one of the base edges being perpendicular to VP. It is cut by a plane inclined 50o to the base. The cutting plane meets the axis 15 mm above the base. Draw the front view, sectional top view, and true shape of the section. 16. A cone with a base diameter of 50 mm and an altitude of 75 mm rests on its base on the HP. It is cut by a plane inclined at 45° to HP and perpendicular to VP and bisecting the axis. Draw the front view, sectional top view and true shape of the section. 17. A hexagonal prism of base 30 mm and axis 60 mm is resting on HP on its base with two of its vertical faces perpendicular to VP. The solid is cut by a plane that is perpendicular to VP, inclined at 50° to HP and passing through a point at a distance of 10 mm from the top end. Draw the development of the lateral surface of the prism. 18. A cylinder with a base diameter of 50 mm and a height of 70 mm rests on its base on the ground. A cutting plane inclined at 40o to H.P. and meeting the axis 35 mm . from the base. Draw the development of the lower portion of the cylinder. 19. 20. Draw the perspective view of a square pyramid of base 30 mm side and height of apex 45 mm. the nearest edge of the base is parallel to and 20 mm behind the picture plane. The station point is situated at a distance of 70 mm in front of the PP and 40 mm to the right of the axis of the pyramid and 60 mm above the ground. 21. A regular pentagonal prism with a base edge of 20 mm and a height of 40 mm rests on its base on the ground plane with one of its base edges 20 mm behind the picture plane. The station point is 60 mm above the ground plane and 40 mm in front of the PP. The central plane is 45 mm to the right of the axis. Draw the perspective projection of the prism.