Question

In 1st angle projection the _________ lies between ___________ and ____________

(a) object, projection plane, observer

(b) projection plane, object, observer

(c) reference line, side view, front view

(d) reference line, left side view, right side view

This question was addressed to me in class test.

My doubt is from First Angle Projection Method topic in chapter Loci of Points & Orthographic Projections of Engineering Drawing

Answer 1

Correct choice is (a) object, projection plane, observer

Easiest explanation: The observer is always at the right side top end. So as the observer watches the object comes first and then the projection plane as the object in the 1st quadrant in 1st angle projection. So object lies between projection plane and observer.