GATE CE 2014 Set 1 — Question 57

MCQ+2 / -0.67EasyDrinking Water TreatmentEnvironmental Engineering

Environmental Engineering → Drinking Water Treatment

Last updated 5 September 2026

Question

The potable water is prepared from turbid surface water by adopting the following treatment sequence.

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Correct answer (A) Turbid surface water arrow Coagulation arrow Flocculation arrow Sedimentation arrow Filtration arrow Disinfection arrow Storage & Supply Solution The standard treatment sequence for turbid surface water to make it potable involves several steps to remove suspended solids and pathogens: 1. Coagulation : Addition of chemicals (coagulants) to neutralize charges on particles. 2. Flocculation : Gentle mixing to allow neutralized particles to collide and form larger flocs. 3. Sedimentation : Allowing the flocs to settle out of the water by gravity. 4. Filtration : Passing water through a porous medium (like sand) to remove remaining fine particles. 5. Disinfection : Adding a disinfectant (like chlorine) to kill remaining pathogenic microorganisms. 6. Storage & Supply : Storing treated water before distribution. Option A correctly reflects this logical engineering sequence. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (A) Turbid surface water arrow Coagulation arrow Flocculation arrow Sedimentation arrow Filtration arrow Disinfection arrow Storage & Supply Solution The standard treatment sequence for turbid surface water to make it potable involves several steps to remove suspended solids and pathogens: 1. Coagulation : Addition of chemicals (coagulants) to neutralize charges on particles. 2. Flocculation : Gentle mixing to allow neutralized particles to collide and form larger flocs. 3. Sedimentation : Allowing the flocs to settle out of the water by gravity. 4. Filtration : Passing water through a porous medium (like sand) to remove remaining fine particles. 5. Disinfection : Adding a disinfectant (like chlorine) to kill remaining pathogenic microorganisms. 6. Storage & Supply : Storing treated water before distribution. Option A correctly reflects this logical engineering sequence.

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