Technical Drawing - Exam Papers - Ordinary - 1995 - Building

Question 2

Fig. 2 shows the outline plan and elevation of a roof.. Surfaces A and C have a pitch of 40° and surfaces B and D have a pitch of 35°.

(a) Draw the plan a project the elevation of the roof.
(b) Develop the surfaces B and C.
(C) Find the dihedral angle between surfaces A and D.

Scale 1 :100