Technical Drawing - Exam Papers - Ordinary - 2007 - 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 cable car is to operate from point F on the ground to point G on the ground. A pylon, which measures 10m in height, is to be erected as close as possible to G, in order to support the cable.
Planning permission requires that the pylon must not break the skyline, when viewed from the ground at F.
Determine the highest possible location for the pylon.

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