Which of the following is hardest rock?
AMarble
Bdiamond
Ctale
Dquartz
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The piece of a brick cut along the centre of width in such away that its length is equal to that of full brick, is called
What happens to raw bricks ifan excess of alumina is present?
Ultimate Strength of Ordinary Portland Cement is provided by:
The first cement factory was started in 1904 in India in
In plastering of walls, using cement mortar,the suitable mix proportion of cement andsand is