Question

Specific surface(SS) can also expressed as ________

(a) Surface area of the particle per unit volume

(b) Physical properties of the soil

(c) Moisture content of the soil

(d) None of the mentioned

I have been asked this question in final exam.

The origin of the question is Soils Classification topic in division Classification of Soils of Geotechnical Engineering I

Answer 1

Right choice is (a) Surface area of the particle per unit volume

For explanation I would say: From the expression, specific surface = surface area of particle/volume of the particle, it can be seen that specific surface is the surface area of a particle.