Technical Drawing - Exam Papers - Higher - 2005 - Building

Question 6

  

Fig. 5 shows the outline plan and elevation of a hyperbolic paraboloid roof The perimeter of the roof is a rectangle in plan. The roof is formed by extending the hyperbolic paraboloid surface ABCD.

(a) Draw the given plan and elevation.

(b) Project an end elevation.

(c) A plane director for the elements AD and BC is positioned so that it contains point D. Draw the traces for this plane director.

Scale 1 : 200

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