Environment And Road Safety Education And Violence Against Women And Children And Drug Abuse 2018 Exam With Answers

Practice Mode:
25.

What is the limit of BOD for effluent of be discharged into a water course ?

A: 50 ppm
B: 30 ppm
C: 100 ppm
D: 150 ppm

The answer is: B

Explanation

The limit of BOD for the effluent to be discharged into a watercourse is 30ppm which is given by the pollution and control board.

Explanation :

1. The permissible level of the same in drinking water is meanwhile zero but in the effluent in 30ppm. It is one of that basic parameters to check water pollution.
2. It is estimated by a series of the process starting from incubation to titration which is completely a laboratory-based technique that ensures the safety of effluent in a condition that it would not go beyond the permissible levels.
3. It does not cause pollution of the respective water coarse to which it is channeled to get a discharge.