waecE-LEARNING
Technical Drawing Paper 2, May/June. 2011  
Questions: 1 2 3 4 5 6 7 8 9 10 Section B 1 2 Main
General Comments
Strength
Weakness/Remedies



Question 2

  The figure below shows the two views of a cast lever bracket. It is clamped by a bolt
passong through a 38 diameter hole and screwed into the M36 thread hole.
  The bolt is hexagonal headed 124 long, with the thread running 88. The bolt is screwed tight.

 



    

 

 

 

.

 

 

 

_____________________________________________________________________________________________________
Observation
  1. The given plan

    Candidates were expected to draw in third angle projection. They were to show 3 centre lines,
the outline, bolt in position, boss(large circle), vertical hole( small circle), the web. Faces C,D,E,
F,G and H, hexagonal head and  end bolt . the scale required is half full size.

  1. The Front View On P-P

   Candidates were expected to draw  in third angle projection. They were expected to show
centre lines(4no), outline, bolt head (hexagonal), boss, vertical hole, the web, faces A, B,
C and D, threaded hole.  The scale is half full size, and necessary sectioning must be shown.

  1. Sectional End Elevation

         Candidates were expected to draw in third angle .  They were expected to draw centre
lines( 2no), outline, two circles to show the threaded hole, faces A, B and C, vertical hole.
The scale is half full size and necessary sectioning must be shown.

Most of the candidates did not attempt the  mechanical option.  Most of the few who did,
however, performed above average. The solution is given below

  

 

       

 

 

Powered by Sidmach Technologies(Nigeria) Limited .
Copyright © 2015 The West African Examinations Council. All rights reserved.