engineering recuitment BPSC Assistant Sanitary & Waste Management Officer Mock Test 2022 Environmental Engineering Waste Water
Which of the following chemical parameters are associated with the organic content of water?
1. Biochemical Oxygen Demand (BOD)
2. Chemical Oxygen Demand (COD)
3. Total Organic Carbon (TOC) and Total Oxygen Demand (TOD)1
1 and 2 only
2
1 and 3 only
3
2 and 3 only
4
1, 2 and 3