engineering recuitment FCI JE 2022 Mock Test for CE/ME/EE (Phase I & II) Environmental Engineering Quality of Water
The permissible limit of nitrate content in potable water is:
1
25 ppm
2
100 ppm
3
10 ppm
4
150 ppm
5
45 ppm
The permissible limit of nitrate content in potable water is: