Question

When chalk is used _______

(a) It is finely broken up and dispersed in water in a wash mill

(b) It has to be blasted, then crushed, usually in two progressively smaller crushers

(c) It is sieved and fed into a rotating dish called a granulator

(d) The raw materials are crushed and fed into a grinding mill, where they are dried and reduced into fine powder

This question was posed to me in an internship interview.

The origin of the question is Wet Process topic in chapter Cement of Concrete Technology

Answer 1

Right answer is (a) It is finely broken up and dispersed in water in a wash mill

Easy explanation: When chalk is used, it is finely broken up and dispersed in water in a wash mill. Similarly, the clay is also broken up and mixed with water, usually in a similar wash mill.