Filtering Water

Q. Explain the traditional way of purifying water to make it fit for drinking.

Q.

Question 8
Potable water is the water which is
(a) Obtained from a river
(b) Obtained from a lake
(c) Pure and fit for drinking
(d) used only for washing clothes

Q.

Flocculation value is expressed in terms of _________.

Q.

Which among the following statement is correct regarding clean water?

1. Clean water is always potable

2. Clean water is always grem free

3. Clean water may or may not be potable
4. None of these

Q. Clean and transparent water is fit for drinking.

1. True
2. False

Q.

Excavated dams are made by scooping out soil to make large shallow pits. [3 MARKS]

Q.

Potable water is

1. Drinking water

2. Water that can be easily transported

3. Contaminated water

4. Muddy water

Q.

How are excavated dams made ?
[3 MARKS]

Q. Which is the most common and easy method of purifying water?

1. Filtration
2. Boiling
3. Chlorination
4. None of the above

Q.

What are the 3 major responsibilities of the EPA?

Q.

Define the term following- filtration.

Q. Abatement measures of water pollution is

1. Septic tank
2. Sewage treatment
3. Green mufflers
4. Both A and B

Q.

Identify the name of the process that is used to obtain pure water for industrial purpose.

1. Distillation

2. Filtration

3. Boiling

4. Chlorination

Q.

Excavated dams are made by scooping out soil to make large shallow pits.

1. True
2. False

Q.

The method of prevention of water pollution from an industrial perspective is:

1. Treating polluted water in the factory before dumping.

2. Adding chemicals to water to make it transparent.

3. Adding $C{O}_2$ in the water.

4. Adding $S{O}_2$ in the water.