engineering recuitment HPCL Engineer Mock Test 2024 Environmental Engineering Water Treatment Softening
From the list of treatments given below, which treatments reduce salinity of water?
A. Flash mixing and sedimentation
B. Electrodialysis
C. Reverse osmosis
D. Freezing
E. Filtration
Choose the correct answer.
1
A, C and E
2
A, B and D
3
A, B, C, D and E
4
B, C, and D