In the wet process in the manufacturing of portland cement, argillaceous material is thoroughly mixed with water in ____…

The percentage content of water and calcium sulphate in gypsum is ___ and ___ respectively.

Which of the following statements about gypsum is not correct?

Which of the following is not a solid lubricant?

Plaster of Paris is ______

Buna-S, Neoprene and Butyl are different trade names of _____

The binding material present in asphalt is ______

Which of the following is not a property of a good electrical insulator?