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Technical Drawing Paper 1, May/June 2010  
Questions: 1 2 3 4 Main
General Comments
Strength
Weakness/Remedies






Question 1

  1. The figure below shows two views of an equilateral triangular pyramid of
    base 65, cut by plane XX.

                                                          (a)       Copy the given views
                                                          (b)       Complete the elevation and the plan
                                                          (c)       Draw the end view from arrow Y showing the cut surface


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OBSERVATION

The question is on first angle orthographic projection of a truncated
triangular pyramid. Candidates were expected to position the plan
correctly and determine, by geometrical means, the apex of the pyramid
on the plan and join the sides of the pyramid on the plan. These steps are
followed by projecting from the front elevation to the plan and then
projecting from the front elevation and plan to the end elevation in the
direction of the arrow.
The required solution is shown below. Less than 50% of the candidates
scored above average in the question.

 

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