Unit 13: Mechanical operations
LO1: Be able to plan for production in mechanical
engineering
Interpreting engineering drawings
Learner activity sheet
Activity 1: Based on the isometric view of an object identify its
orthographic view
Look at the isometric view of an object shown below, and pick which of the drawings (a, b c or d) is
showing its top view.
Version 1
Activity 2: Using first and third angle projection for technical drawing
generation
Look at the two third angle projections of an object and replace the question mark with a required third
drawing.
a)
?
b)
?
Version 1
c)
Version 1
Activity 3: Converting isometrics views to third angle
Look at the isometric views of objects shown below, and draw the third angle projection for each (three
views required).
a)
b)
Version 1