Technical Drawing - Exam Papers - Ordinary - 1993 - Paper 1

Question 3

Fig. 3 shows the plan of a right cone which has a point P on its curved surface. The cone rests on the horizontal plane and has an altitude of 50 mm.

1. Draw the plan of the cone and project the elevation showing the point P in its given position.
2. Draw the plan and elevation of a sphere S which rests on the horizontal plane and touches the cone at the point P.
3. Another sphere having a diameter of 40 mm rests on the horizontal plane and is in contact with the sphere S and the cone. Draw the projections of this sphere.