Technical Drawing 3, WASSCE (SC), 2017

Question 1

 

SECTION A

(1)        The figure below shows two views of a bracket in first angle orthographic
projection.  Make a freehand isometric drawing of the bracket making X the lowest point.

 

 

Observation

 

Candidates were given two views of a bracket in first angle orthographic projection and were asked to make freehand isometric drawing of the bracket making X the lowest point.

Majority of the candidates performed well but few ones could not make X the lowest

Candidates were expected to do the following:

Freehand Isometric drawing of the bracket

(i)     sketch the block in isometric; 
(ii)     make X the lowest point;
(iii)     sketch face A;
(iv)     sketch face B;
(v)      sketch face C;
(vi)     sketch face D;
(vii)    sketch face E;
(viii)   sketch face F;
(ix)     sketch face G;
(x)      sketch face H;
(xi)     sketch face J;
(xii)    sketch face K;
(xiii)   sketch neatly.

 The solution is shown below: