engineering recuitment BPSC Assistant Sanitary & Waste Management Officer Mock Test 2022 Environmental Engineering Sewage Sewage Treatment
Grease and oil traps are specially built chambers on the sewers to exclude grease and oil from wastewater ______.
1
Only at the junction of oil and grease chamber and sewer line
2
Both At the exit of sewer line and Only at the junction of oil and grease chamber and sewer line
3
Before the wastewater enter into the sewer line
4
At the exit of sewer line