Technical Drawing - Exam Papers - Ordinary - 2008 - Building

Question 7

  

The accompanying drawing shows ground contours at ten-metre vertical intervals on a map.

(a) On the drawing supplied, draw a vertical section (profile) on the line DE.

(b) A, B and C are outcrop points on the surface of a stratum of ore.
Determine the dip and strike of the stratum.

(c) A wireless broadband transmitter is located on top of a 30m high pylon at point F.
A school, located at G, needs to connect with this transmitter to get broadband internet access.
A wireless receiver unit must be erected at point G. Determine the minimum height for this unit if it is to have a direct line of sight to the transmitter.

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