Technical Drawing - Exam Papers - Ordinary - 1997 - Paper 1

Question 6

(a) In an ellipse the distance from the focus to the vertex is 25 mm and the eccentricity is 0.5. Draw the ellipse.

(b) In Fig. 6 the line AB is the axis of a parabola, DD is the directrix and P is a point on the curve. Show how the position of the focus F is determined and draw a portion of the curve.