Waste water Story Test

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Waste water Story Test - 10

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following Organization named 2005-2015 decade as "International Decade for clean water"?

A
Non-governmental organizations

B
International Population Services

C
United Nations

D
Centers for Disease Control and Prevention (CDC)
Solution
- On 22 March 2005, the General Assembly of the United Nations proclaimed the period 20052015 as the International Decade for action on Water for life.
- Thus, Option C is correct.
Question 2
1 / -0

Which period is proclaimed as the International Decade for action on “Water for life”?

A
2010-2020

B
1990-2000

C
2001-2010

D
2005-2015

Solution

On 22 March 2005, the General Assembly of the United Nations proclaimed the period 20052015 as the International Decade for action on Water for life. Option D is correct.
Question 3
1 / -0

What will happen if people around the world have no access to safe drinking water?

A
It will lead to outbreak of water related diseases.

B
Population will increase.

C
Economy will be developed.

D
All of the above

Solution

Clean water that is fit for use is unfortunately not available to all. If people around the world have no access to clean water, it will lead to outbreak of a large number of water-related diseases and even deaths. Therefore, it is serious matter of human dignity.

Option A is correct.
Question 4
1 / -0

Why is it essential to remove pollutants from wastewater before it enters a water body or reused?

A
It can cause environmental damage to water bodies.

B
Proper sanitation is not needed.

C
Effects on wildlife dependent on water.

D
Both options A and C are correct.

Solution

The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment. As solid material decays, it uses up oxygen, which is needed by the plants and animals living in the water.
Therefore, Option D is correct.
Question 5
1 / -0

What happens MANY times before the water can be returned to the water bodies?

A
It is cleaned.

B
It is disinfected

C
It is checked.

D
All of the above

Solution

Waste water before reaching the seas or ocean bodies is cleaned, disinfected and checked many times. Thus, Option D is correct.
Question 6
1 / -0

The process of settling down of particles of a solid in a liquid is_________.

A
Sedimentation

B
Filtration

C
Sublimation

D
Decantation

Solution

The process of settling down of particles of a solid in a liquid is known as Sedimentation. Option A is correct.
Question 7
1 / -0

What happen if drainage is not properly dispose off-sewage?

A
We will not get clean water.

B
Diseases will spread.

C
Water will get polluted.

D
All the above

Solution

If drainage is not properly dispose off-sewage- diseases will spread, polluted water ratio increases and clean water will become scarce. Option D is correct.
Question 8
1 / -0

What is a sewage treatment plant?

A
The place where water is cleaned, filtered and tested before re-entering the water bodies.

B
The place where water is cleaned, filtered and tested before going to our houses.

C
The network of pipes that carry sewage (dirty water) from our houses.

D
The place where water is bottled for drinking.

Solution

The place where water is cleaned, filtered and tested before re-entering the water bodies is called as Sewage treatment plant.Option A is correct.
Question 9
1 / -0

What is the sewage network?

A
The place where water is cleaned before being returned to rivers.

B
The place where all our sewage is cleaned.

C
The pipes that carry sewage (dirty water) from our houses to the sewage treatment plant.

D
The place where water is cleaned before being returned to our taps.

Solution

Sewage network is, a network of pipes, pumps, and force mains for the collection of wastewater, or sewage, from a community.
Option C is correct.
Question 10
1 / -0

Last step in wastewater treatment is a ___________ process.

A
Biological

B
Physical

C
Mechanical

D
Chemical

Solution

The last step of primary treatment involves sedimentation, which causes the physical settling of matter.Thus, Option B is correct.

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Waste water Story Test - 10

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Waste water Story Test - 10

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SHARING IS CARING

Question 1

Non-governmental organizations

International Population Services

United Nations

Centers for Disease Control and Prevention (CDC)

Solution

Question 2

2010-2020

1990-2000

2001-2010

2005-2015

Solution

Question 3

It will lead to outbreak of water related diseases.

Population will increase.

Economy will be developed.

All of the above

Solution

Question 4

It can cause environmental damage to water bodies.

Proper sanitation is not needed.

Effects on wildlife dependent on water.

Both options A and C are correct.

Solution

Question 5

It is cleaned.

It is disinfected

It is checked.

All of the above

Solution

Question 6

Sedimentation

Filtration

Sublimation

Decantation

Solution

Question 7

We will not get clean water.

Diseases will spread.

Water will get polluted.

All the above

Solution

Question 8

The place where water is cleaned, filtered and tested before re-entering the water bodies.

The place where water is cleaned, filtered and tested before going to our houses.

The network of pipes that carry sewage (dirty water) from our houses.

The place where water is bottled for drinking.

Solution

Question 9

The place where water is cleaned before being returned to rivers.

The place where all our sewage is cleaned.

The pipes that carry sewage (dirty water) from our houses to the sewage treatment plant.

The place where water is cleaned before being returned to our taps.

Solution

Question 10

Biological

Physical

Mechanical

Chemical

Solution

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