Technical Drawing - Exam Papers - Ordinary - 2007 - Building

Question 2

  

Fig. 2 shows the outline plan, elevation and end elevation of roof surfaces and a dormer window. A solar panel is located centrally on roof surface C of the dormer window as shown. All roof surfaces have a pitch of 35 degrees.

(a) Draw the given plan and elevation of the roof.

(b) Develop the surface A.

(c) Determine the true shape of the solar panel.

(d) Find the dihedral angle between the roof surfaces A and B.

Scale 1 : 100

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