Technical Drawing - Exam Papers - Ordinary - 2006 - Paper 1

Question 6

(a) A parabola has 20mm between its focus and vertex. Locate the directrix and draw a portion of the curve.

(b) Shown is the directrix DD1 of a hyperbola. Two points, P and Q on the curve are also shown. F indicates the approximate position of the focus.
The eccentricity of the curve is 1.5
Locate the focus and vertex of the hyperbola.
Draw a portion of the curve which passes through the given points P and Q.