Environmental Engineering - Study Mode
[#141] Sewage treatment units are designed for
Correct Answer
(C) Average flow only
[#142] For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as
Correct Answer
(B) 6.5 to 8.0
[#143] The pathogens can be killed by
Correct Answer
(B) Chlorination
[#144] Orthotolidine test is used for determination of
Correct Answer
(B) Residual chlorine
[#145] Period of cleaning of slow sand filters is about
Correct Answer
(C) 2 - 3 months