Question

A line of length 1 m is placed in profile plane making an angle of 180 degrees with the horizontal. What is the length of line top view?

(a) 1m

(b) 0 m

(c) 0.5 m

(d) 1.5 m

This question was addressed to me in my homework.

Enquiry is from Line contained by a Plane Perpendicular to Both the Reference Planes topic in division Projection of Lines of Engineering Drawing

Answer 1

Correct option is (a) 1m

Best explanation: Given the line is making 180 degrees with the horizontal which is half revolution so the length will be constant from top view as in the side view but in front view the length will be zero meter.