Question

If isometric projection of an object is drawn with true lengths the shape would be same and size is how much larger than actual isometric projection?

(a) 25%

(b) 29.5%

(c) 22.5%

(d) 33.3%

I had been asked this question in an online quiz.

My doubt is from Isometric Drawings topic in chapter Isometric Projection of Engineering Drawing

Answer 1

The correct answer is (c) 22.5%

Explanation: If the foreshortening of the isometric lines in an isometric projection is disregarded and instead, the true lengths are marked, the view obtained will be exactly of the same shape but larger in proportion than that obtained by the use of the isometric scale.