Question

The resistance to water of acid-resistant cement is increased by adding _______ of linseed oil.

(a) 0.50%

(b) 0.15%

(c) 2.50%

(d) 2.75%

Answer 1

The correct choice is (a) 0.50%

The best I can explain: Acid-resistant cement is not water-resistant. However, the resistance to water of acid-resistant cement is increased by adding 0.50% of linseed oil. It is then called acid and water-resistant cement.