Technical Drawing - Exam Papers - Higher - 1998 - Paper 1

Question 1

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Given the horizontal and vertical projections of two planes ABC and ADE.

A = 290 - 5 - 140
B = 180 - 115 - 90
C = 230 - 15 - 10
D = 170 - 55 - 50
E = 270 - 85 - 30

(a) Determine the line of intersection between the planes.

(b) Determine the dihedral angle between the planes.

(c) Show the projections of a straight line drawn from B to the line DE and which shall be 85 mm long.

(d) On a separate diagram, draw the projections of the skew lines AD and BC and show the projections of the shortest horizontal distance between them.

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