Technical Drawing - Exam Papers - Ordinary - 2004 - 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) F and G are two points on the ground. They are connected by a walking route as shown.
An observation tower is to be located at a point along this route.
Determine the minimum height for this tower, if points F and G are to be visible from its top.

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