Technical Drawing - Exam Papers - Higher - 2007 - Building
(a) On a contour map, A and B are two points with altitudes of 105m and 95m respectively.
A skew bore-hole at B is drilled in a south-easterly direction in plan and has an actual inclination of 60° to the horizontal plane. It reveals the top and bottom surfaces of the stratum at altitudes of 65m and 35m, respectively.
(b) On a separate map, R and S are two points on the upper surface of a stratum which are joined with a straight line. R has an altitude of 60m. On the map, S is located 90m north-east of R.
Scale 1 : 1000