Technical Drawing 3, May/June 2015

Question 5

(5) The figure below shows the details of belt pulley unit in third-angle projection. Assemble the parts with the shaft of position holding the pulley and the washer at face P, collar and pin at face T. draw, full size, in first angle the:

(a) sectional front elevation on K – K;

(b) sectional front elevation on P – P.  

Observation

Candidates were expected to do the following:

(A) Sectional front elevation on plane P - P   

  1. draw in first angle projection;
  2. draw full size;
  3. draw the outline;
  4. draw centre line and cutting plane P – P;
  5. draw the shaft in position;
  6. draw washer and pulley at face P;
  7. draw the collar and pin at face T;
  8. draw the main body of the bracket;
  9. section main body of the bracket;
  10. section the washer and pulley;
  11. section the collar at face T;
  12. draw neatly

           

(B) Section on plane K - K

  1. draw in first angle projection;
  2. draw full size;
  3. draw the outline;
  4. draw six  (6) centre;
  5. draw the bracket;
  6. draw the shaft in position;
  7. draw washer and pulley at face P;
  8. draw the collar and pin at face T;
  9. draw the two (2) holes in the bracket;
  10. section the bracket;
  11. section the washer and pulley at face P;
  12. section the collar at face T;
  13. write section on K- K;
  14. draw neatly.