PracticalStudent.com


Technical Drawing  Exam Papers  Higher  2000  BuildingQuestion 2Fig. 2 shows the outline plan and elevation of roof surfaces and a dormer window. Surface A has a pitch of 50° and surface B has a pitch of 45°. The line of intersection between surfaces A and D has a true inclination of 35° to the horizontal plane. Surfaces E and G have a pitch of 50° and surface F has a pitch of 15°. The dihedral angle between the surfaces C and D is 100°. (a) Draw the given plan and elevation. (b) Determine the dihedral angle between the surfaces A and B. Scale 1 : 100 


