77

E.-la.

No. 111. — Perspective Drawing.—For Civil Service Junior.

Time allowed: One hour and, a half. [At leant tivo of the questions must be attempted. All the necessary construction-lines mu't be shown. The diagrams may he transferred to your draw-ing-paper by pricking through^ 1. The given diagram, drawn to a scale of \ inch to 1 foot, shows in perspective a right-angled triangle standing vertically on the ground plane ; the centre of vision and the distance of the spectator from the picture plane are given : find the vanishing and measuring points, the length of A B and of B C, the position of the point B with respect to t"he picture plane and the spectator, and the angle at which R C recedes from the picture plane. 2. Draw the perspecth c representation of a semicircle 7 feet in diameter. The semicircle lies on the ground plane to the left of the diameter, the nearer end of which is 3 feet to the right of the spectator and 1 foot beyond the picture plane. The diameter recedes to the right at an angle of 40°. The eye of the spectator is to be 12 feet by scale in front of the picture plane and 6 feet above the ground plane. Scale, \ inch to 1 foot. 3. The elevation and plan, drawn to a scale of \ inch to 1 foot, are given of a block letter K. Draw the perspective view of the letter as it stands vertically on the ground plane with its face at right angles to tne picture plane, the nearest point A being 10 feet to the left of the spectator and 1 foot beyond the picture plane. The eye of the spectator is to be 12 feet by scale in front of the picture plane and 6 feet above the ground plane. Scale, \ inch to 1 foot.