Question

The loss in weight should not exceed _________ percent when tested with sodium sulphate and _________ percent with magnesium sulphate solution.

(a) 12, 18

(b) 18, 12

(c) 10, 15

(d) 15, 10

This question was posed to me by my college director while I was bunking the class.

Enquiry is from Mechanical Properties of Aggregates in division Aggregates and Testing of Aggregates of Concrete Technology

Answer 1

Right choice is (a) 12, 18

For explanation: The loss in weight should not exceed 12 percent when tested with sodium sulphate and 18 percent with magnesium sulphate solution.