Civil Engineering MCQJE Level Civil Engineering
Alum coagulation is most effective when water contains sufficient:
Environmental EngineeringEnvironmental EngineeringHARD
Choose the correct answer
A
Alkalinity
B
Oil and grease only
C
Dissolved oxygen only
D
Sand particles larger than gravel
Correct Answer
A. Alkalinity
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Alkalinity forms aluminium hydroxide floc during coagulation.
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This MCQ belongs to SSC JE Civil Paper-I Technical Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.