Question

To use textural classification chart ___________ lines must be drawn.

(a) Parallel to the three sides of the triangle

(b) Parallel to the only one side of the triangle

(c) Adjacent to the three sides of the triangle

(d) Adjacent to the one sides of the triangle

I had been asked this question in unit test.

I need to ask this question from Soils topic in chapter Classification of Soils of Geotechnical Engineering I

Answer 1

Correct option is (a) Parallel to the three sides of the triangle

To elaborate: To use the textural classification chart, for a given percentage of three constituents forming a soil, lines are drawn parallel to three sides of the equilateral triangle.