Technical Drawing - Exam Papers - Ordinary - 1992 - Building

Question 2

Fig. 2 shows the outline plan of a roof. Surface A has a pitch of 30° and surfaces B and D have a pitch of 40°

(a) Draw the plan and project the elevation of the roof.
(b) Determine the pitch of surface C.
(c) Develop the surface B.
(d) Find the dihedral angle between the surfaces C and D.

Scale 1 : 100