Water Treatment Process Quiz

What is the primary purpose of water intake structures?

• To draw water for use

• To aerate the water

• To filter out impurities

• To add chemicals to the water

What is the first water treatment station called?

• Filtration

• Coagulation

• Screening

• Sedimentation

What type of screening has a spacing of under 10 mm?

• Rapid screening

• Coarse screening

• Fine screening

• Medium screening

What is the purpose of aeration in water treatment?

• To soften the water

• To add oxygen for oxidation

• To remove large particles

• To disinfect the water

What does coagulation achieve in water treatment?

• Removes solid particles by gravity

• Filters out impurities

• Adds oxygen to the water

• Turns small particles into larger flocs

What is flocculation primarily used for?

• To add chemicals to water

• To induce coagulation

• To disinfect the water

• To aerate the water

What process removes solid particles from suspension by gravity?

• Aeration

• Filtration

• Coagulation

• Sedimentation

What type of filter is most commonly used in water treatment?

• Granular-media gravity filter

• Pressure filter

• Slow sand filter

• Rapid sand filter

Which of the following is a common coagulant used in water treatment?

• Chlorine

• Alum

• Ozone

• Hydrogen sulfide

What causes hardness in water?

• Presence of organic matter

• Presence of bacteria

• Presence of cations

• Presence of anions