SSC SSC JE Civil 2025 Mock Test Series (Paper 1 & Paper 2) Environmental Engineering Water Treatment
Select the INCORRECT statement regarding purification of water.
1
Screening is done before plain sedimentation.
2
Sedimentation aided with coagulation is better than plain sedimentation.
3
Plain sedimentation is also known as type-2 settling.
4
Type-1 settling involves Stock's law.