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

Question 4

1. A cylinder has a diameter of 50 mm and an altitude of 80 mm. Draw the cylinder in plan and elevation and show the path of a helix which moves from the base to the top of the cylinder in one complete revolution.
   
   
2. The sector of the circle shown in Fig. 4 represents the development of the curved surface area of a right cone having a base diameter of 64 mm. Draw this cone in the plan and elevation and show the line AB on the surface of the cone in both projections.