CSEC Technical Drawing · May/June 2011 · Paper 2

16 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. 1(a)10 marksConstruct the regular pentagon.
2. 1(b)10 marksEnlarge the regular pentagon to a similar figure with side lengths in the ratio of 3:5.
3. 2(a)8 marksConstruct triangle ABC.
4. 2(b)12 marksDraw three circles touching each other mutually, using vertices A, B, and C as their centers.
5. 3(a)6 marksDraw the given mechanism as shown in Figure 1.
6. 3(b)14 marksPlot the locus of point B for one complete revolution of arm OA.
7. 420 marksConstruct an Archimedean spiral of ONE convolution having a maximum radius of 120 mm and a minimum radius of 20 mm.
8. 5(a)6 marksDraw the given orthographic views.
9. 5(b)14 marksDraw an auxiliary elevation projected onto line X–Y viewed along the direction of arrow A, omitting hidden details.
10. 6(a)5 marksDraw the given views.
11. 6(b)5 marksDraw the completed plan view of the truncated pyramid.
12. 6(c)10 marksDraw the surface development of the truncated pyramid opened along seam S-S.
13. 7(a)6 marksDraw the given views.
14. 7(b)(i)10 marksComplete the elevation by constructing the curves of interpenetration between both cylinders, showing hidden lines.
15. 7(b)(ii)4 marksComplete the elevation by showing the face of the horizontal cylinder.
16. 820 marksGiven the two first-angle orthographic views of a machine block in Figure 5, draw a cabinet oblique projection of the block.