Technical Drawing 3, WASSCE (PC 2ND), 2019

Question 3

 

 

Make a neat freehand pictorial sketch of a micrometer.

 

Observation

 

 

Candidates were asked to make a pictorial sketch of a micrometer.

Majority of candidates attempted this question but most of them could not draw all the parts correctly


Candidates were expected to do the following:

 

Freehand pictorial sketch of a Micrometer

  1. Sketch pictorial view;
  2. Sketch for resemblance;
  3. Sketch to proportion;
  4. Sketch the frame and locking nut;
  5. Sketch the anvil, spindle and ratchet stop
  6. Sketch the sleeve and thimble
  7. Sketch neatly.

                                  

The solution is shown below: