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Technical Drawing - Exam Papers - Higher - 1997 - BuildingQuestion 6Fig. 5 shows the outline plan of a roof which contains five hyperbolic paraboloid roof surfaces. The roof perimeter is square in plan. The corners A, B, C and D are at ground level, corners G and E are 12 m above ground level and corners F and H are 1 6m above ground level. (a) Draw the given plan of the hyperbolic paraboloid surfaces ABEF and EFGH and project an elevation. (b) Show the curvature of the roof along a line joining G to B. (c) Determine the traces of the plane director for the edges AF and BE of the surface ABEF and having its horizontal trace passing through B. Scale 1: 200 ![]() ![]() |
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