A document discusses projections of points and lines. It provides two example problems involving drawing the projections of lines with given information about their lengths, positions relative to planes, and angles of inclination. For each problem, it asks the reader to draw the projections of the line and determine its traces. The document is authored by Professor Yash Parikh and contains his name and affiliation.

1. Unit No:03
Projections of Points & Lines
Yash B. Parikh
M.Tech. (CIM)
Assistant Professor
Department of Mechanical Engineering
Symbiosis Institute of Technology

2. 2
Question 4 :
A line BC 80 mm long is in the first quadrant with the end B in
the H.P. and end C in the V.P. The line is inclined at 30˚ to the
H.P. & 45˚ to V.P. Draw the projections of line BC and determine
it’s traces.
Prof. Yash Parikh

3. 3
Question 5 :
The top view of a 80 mm long line AB measures 50 mm. The
point A is 50 mm in front of V.P. and 20 mm above the H.P. The
point B is 20 mm in front of V.P. and is above H.P. draw the
Front view of AB and find it’s inclination with the H.P. & V.P.
Show it’s traces also.
Prof. Yash Parikh

4. 4
Thank You
Prof. Yash Parikh