Which method is commonly adopted for the removed of permanent hardness?
ALime-soda posses
BBase exchange process
CDemineralisation process
DAll the above
Home/
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The minimum crushing strength of third class brick is:(a)
The minimum crushing strength of a first class brick is:
The percentage of residue left after sieving good Portland cement in 90 micron sieve should not exceed
Soundness of cement is tested by
When clay contains excess alumina is used For bricks