Purification of Water

IMPORTANT

Purification of Water: Overview

This Topic covers sub-topics such as Water Purification, Water Purification System in Water Works, Purification of Drinking Water by UV Rays, Boiling of Drinking Water, Using Alum for Water Purification and, Water Storing Tanks

Important Questions on Purification of Water

EASY
IMPORTANT

Microbes are killed in water purification system by using _____.

MEDIUM
IMPORTANT

Which of the following method is used as germicidal in modern times for drinking water?

 

 

MEDIUM
IMPORTANT

What is the advantage of the purification of water by UV rays?

MEDIUM
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Describe the process of purification in an aqua filter.

EASY
IMPORTANT

Can we drink water directly from the tank? Is it safe? 

EASY
IMPORTANT

Sewage and other waste water of towns and cities is processed for purification before letting it into a water body to prevent _____ of water.

MEDIUM
IMPORTANT

How the water pollution becomes a threat to the aquatic living things?

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Sewage water can carry micro-organisms that spread diseases.

MEDIUM
IMPORTANT

In this process of purification of water, bleaching powder is added.

EASY
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Samir has fallen sick during the monsoon season. The doctor has advised him to drink pre-boiled, cooled and covered water because

EASY
IMPORTANT

Yash collected some water from a lake and filtered it.

Is this water now safe for drinking?

MEDIUM
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_____ gas is added to disinfect water.

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Why should drinking water be chlorinated? Are there any harmful effects of using water that has been chlorinated?

EASY
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The third stage in water treatment process is a

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Water is disinfected using

HARD
IMPORTANT

Draw a flow diagram to show the water purification system in water works.

MEDIUM
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What are the uses of the water tank?

MEDIUM
IMPORTANT

How is water purified and supplied for drinking purposes? Explain.

EASY
IMPORTANT

In the city water supply the sequence of physical steps followed are:

MEDIUM
IMPORTANT

Describe the steps involved in the purification of drinking water for city water supply.