The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about______________?
(A) 0.01 to 0.05 ppm
(B) 0.05 to 0.5 ppm
(C) 0.5 to 1.0 ppm
(D) 1.0 to 5.0 ppm
The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about______________?
| Share this... |
 Facebook
|
 Twitter
|
 Linkedin
|
 Whatsapp
|
Related Mcqs
- Previous:The settling velocity of a particle in a sedimentation tank increases if_________________?
- Next:Orthotolidine test is used for determination of________________?
Leave a Reply
Your email address will not be published. Required fields are marked *
