Technical Drawing - Exam Papers - Higher - 2005 - Building

Question 2

  

Fig, 2 shows the outline plan and elevation of roof surfaces and a dormer window.

(a) Surfaces A and B have pitches of 50° and 45° respectively. Draw the plan and elevation of these two surfaces and determine the dihedral angle between them.

(b) The line of intersection between surface C and the dormer surface E has a true length of 7m. The dihedral angle between the surfaces A and D is 135°.
Complete the plan and elevation of the roof and dormer window.

(c) Develop the surface C.

Scale 1 : 100

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