Question

Which of the following is not a property of the packing mortar used to pack oil wells?

(a) It should be water-resistant

(b) It should have low homogeneity

(c) It should have resistance to subsoil water pressure

(d) It should be able to form solid waterproof plugs in voids of rocks

This question was posed to me in quiz.

I'm obligated to ask this question of Mortar in section Steel, Timber, Mortar, Plastics, Non-Ferrous Metals and Alloys of Construction & Building Materials

Answer 1

The correct option is (b) It should have low homogeneity

To explain: Packing mortar which is used to pack oil wells should be water-resistant and should also have resistance to subsoil water pressure. It should have high homogeneity and it should be able to form solid waterproof plugs in voids of rocks.