Question

Specific gravity of milk at 60ºF is __________

(a) 1.022

(b) 1.032

(c) 1.033

(d) 1.042

I had been asked this question by my school teacher while I was bunking the class.

The origin of the question is Quality topic in division Quality parameters of Dairy Engineering

Answer 1

The correct choice is (b) 1.032

For explanation I would say: Specific gravity is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. A specific gravity of milk is 1.032 at 60ºF.