Question

The type of triangle, used in textural classification of soil is _____________

(a) Right angled triangle

(b) Equilateral triangle

(c) Perpendicular triangle

(d) None of the mentioned

I had been asked this question in an internship interview.

My doubt stems from Soils in section Classification of Soils of Geotechnical Engineering I

Answer 1

The correct choice is (b) Equilateral triangle

For explanation I would say: A triangle, having equal length of sides (i.e. Equilateral triangle) is used in textural classification chart.