Technical Drawing - Exam Papers - Ordinary - 1991 - Building

Question 2

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Fig. 2 shows the outline plan of a roof. Surface A has a pitch of 55°, surfaces B and C have a pitch of 35°, and surface D has a pitch of 45°.

  1. Draw the plan and project the elevation of the roof.
  2. Develop the surface B.
  3. Find the dihedral angle between the surface A and C.

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