Coagulants are used when turbidity of water is more than:
A50 ppm
B70 ppm
C80 ppm
D60 ppm
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The minimum clear cover (in mm) for the main reinforcement in column, according to IS: 456- 2000 is?
In sedimentation tank, the velocity of flow generally does not exceed:
For preparation of a contour plan for a route survey
Which of the statement is not true as the case of ellipse?
The error in measured length due to sag of chain or tape is known as