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Quiz on Water Treatment & Analysis

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Water Treatment & Analysis Quiz

Test your knowledge on water treatment and analysis with our engaging quiz! Discover the key concepts related to hardness, COD, disinfection methods, and more.

Perfect for students and professionals looking to refresh their understanding, the quiz includes:

10 multiple choice questions
Instant feedback on your answers
Topics covering both chemical and physical treatment methods

10 Questions2 MinutesCreated by FilteringWater521

Temporary hardness of water may be removed by adding

Calcium hydroxide

Calcium carbonate

Calcium chloride

Sodium bicarbonate

Zeolite softening process removes

Only temporary hardness of water

Only permanent hardness of water

Both temporary and permanent hardness of water

The dissolved gases in permanent hard water

The chemical oxygen demand (COD)measures the

Amount of oxygen required for growth of microorganisms in water

Amount of oxygen that would be removed from the water in order to oxidize pollution

Amount of oxygen required to oxidize the calcium present in waste water

None of the above

Temporary hardness of water is caused by the presence of

Chlorides of calcium and magnesium

Sulfates of calcium and magnesium

Bicarbonates of calcium and magnesium

Carbonates of sodium and potassium

Zeolite used in zeolite softening process for the treatment of hard water gets exhausted after certain time of usage but can be regenerated by flushing it with

10% calcium chloride solution

10% magnesium sulfate solution

10% magnesium chloride solution

10% sodium chloride solution

Permanent hardness of water is caused by the presence of

Bicarbonates of calcium and magnesium

Carbonates of sodium and potassium

Chlorides and sulfates of calcium and magnesium

Phosphates of sodium and potassium

Which of the following chemical is sometime added in the process of coagulation and flocculation?

Aluminum sulphate

Aluminum oxide

Calcium chloride

Calcium Hydroxide

Which of the following physical method is used as germicidal in modern time for the treatment of drinking water?

Chlorination

Treating with potassium permagnate

UV radiation

Treating with bleaching powder

The common methods used for disinfection in waste water treatment plants are

Chlorination

UV light

Both (a) and (b)

Sedimentation

Which of the following substances are commonly used in a filter?

Charcoal

Sand

Both (a) and (b)

Aluminum chloride

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