Technical Graphics - Exam Papers - HL - 2005

Section B - Question 4

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The elevation and plan of the top portion of a traffic light are shown.
The design is based on a truncated cylinder and a truncated equilateral triangular prism.
(a) Draw the given plan and elevation.
(b) Draw the development of the curved surface A of the cylinder.
(c) Draw the development of the vertical surface B and the sloping surface C of the prism.

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