Technical Drawing - Exam Papers - Ordinary - 2003 - Building

Question 4

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Fig. 4 shows the outline plan of two adjoining hyperbolic paraboloid roof surfaces ABCD and ADEF.

The corners B, D and F are at ground level. Corners C and E are 4m above ground level and corner A is 10m above ground level.

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

(b) Determine the curvature of the roof along a line joining C and F.

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