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Technical Drawing Paper 1,Nov/Dec. 2007  
Questions: 1 2 3 4 Main

 

General Comments
Strength
Weakness/Remedies









































Question 3

The figure below shows the front elevation and  plan of a right hexagonal pyramid
            cut by a plane S-S                                                                                                .

                

Draw, full size, the

(a) given elevation; (b) complete plan;
(c) end elevation, looking in the direction of arrow E; (d) true shape of the cut surface.



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OBSERVATION

This is a truncated right hexagonal pyramid. Candidates were required to complete the plan, draw the end elevation in first angle and the draw the true shape. One very important approach to the question is for the candidates to attempt the questions sequentially from (a) through (d) as follows:
      (i)         construct a regular hexagon
      (ii)        project the same to get the required elevation
(iii)    project from elevation to the plan to get the cut surface on the plan
      (iv)       project from the elevation to and plan to get complete end elevation
      (v)        draw the true shape.
The required solution is shown below

                            '. ".                                         :         

 

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