Question

A line of length 12 inches is parallel to vertical plane and 5 inches away from it and ends make 6 and 7 inches from profile plane. The length of line in top view will be ________inches.

(a) 11.61 inches

(b) 11.31 inches

(c) 11.95 inches

(d) 30.37 inches

I have been asked this question during an online exam.

My enquiry is from Projection of Line Inclined to one Plane and Parallel to other topic in chapter Projection of Lines of Engineering Drawing

Answer 1

Right option is (c) 11.95 inches

The best explanation: Given a line of length 12 inches and parallel to vertical plane and it may be any inches away from it the top view is calculated as given here √(12^2-1^2 )= 11.95 inches. 1 is because of 7-6 inches = 1 inch.