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






Question 3
1) The front and end elevations of an object are shown below.  Draw an isometric view of the object making point K the lowest.

 

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OBSERVATION

From the given orthographic views candidates were expected to draw the
required isometric view.  The first step is to visualize the given object (which is a crankshaft), then draw the isometric axes or box.  The next step is to determine the point K and proceed from there.  All parts must be drawn either perpendicularly or 30o to the horizontal.  The circular parts too must be drawn in elliptical form.  The required solution is shown below:

Majority of the candidates did well in this question which showed that they could visualize the object correctly.

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