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Waste Water Story - 1

Description: Waste Water Story - I
Number of Questions: 15
Created by:
Tags: Waste Water Story - I Waste water Treatment Sanitation and Diseases, Sanitation at Public Places Sewage or Waste water
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Which of the following components help(s) in the growth of aerobic bacteria in the clarified water?

  1. Air

  2. Soil and sand

  3. Nitrates and metals

  4. Phosphates


Correct Option: A
Explanation:

Air helps in the growth of aerobic bacteria in the clarified water.

Open drainage system is a breeding place for which type of disease causing organisms?

  1. Flies and mosquitoes

  2. Stray dogs

  3. Birds and frogs

  4. Beetles and spiders


Correct Option: A
Explanation:

Open drainage system is a breeding place for flies and mosquitoes.

Which type of vegetation is found along sewage ponds?

  1. Eucalyptus trees

  2. Pines and deodar

  3. Bamboo trees

  4. Teak and sal trees


Correct Option: A
Explanation:

Eucalyptus trees are found along sewage ponds

“Hepatitis, polio and cholera “are which type of diseases?

  1. Diseases caused by flies

  2. Viral diseases

  3. Water borne diseases

  4. Fungal diseases


Correct Option: C
Explanation:

Hepatitis, polio and cholera are water borne diseases.

Which type of disposal system is used in isolated building and hospitals?

  1. Compositing pits

  2. Septic tanks

  3. Covered drains

  4. Chemical toilets


Correct Option: B
Explanation:

Septic tanks are type of disposal system used in isolated building and hospitals

What is produced during treatment of waste water which is used as a source of energy?

  1. LPG

  2. Sludge

  3. Clarified water

  4. Biogas


Correct Option: D
Explanation:

Biogas is produced during treatment of waste water which is used as a source of energy.

What is sewage?

  1. Animal and plant wastes

  2. Human faecal wastes mixed with waste water

  3. Gaseous waste from the industries

  4. Non – biodegradable waste


Correct Option: B
Explanation:

Human faecal wastes mixed with waste water is sewage.

What is the inorganic impurity in the waste water?

  1. Urea

  2. Oil

  3. Herbicides

  4. Metals


Correct Option: D
Explanation:

Metals are the inorganic impurity in the waste water.

Which one of the following diseases is caused by bacteria?

  1. Malaria

  2. Dengue

  3. Hepatitis

  4. Dysentery


Correct Option: D
Explanation:

Dysentery is caused by bacteria.

Which instrument removes rags, cans, plastics packets from the waste water?

  1. Aerator

  2. Skimmer

  3. Bar screen

  4. Grit


Correct Option: C
Explanation:

Bar screen removes rags, cans, plastics packets from the waste water

Which instrument in treatment plant remove solid waste like faeces from waste water?

  1. Grit

  2. Bar screen

  3. Clarifier

  4. Aerator


Correct Option: A
Explanation:

Grit remove solid waste like faeces from waste water

All of the following are inorganic impurities present in waste water, except

  1. fruit and vegetable waste

  2. nitrates

  3. phosphates

  4. metals


Correct Option: A
Explanation:

Fruit and vegetable waste is an organic impurity present in waste water.

Which type of sewage is produced by kitchen activities?

  1. Sullage water

  2. Trade waste

  3. Foul waste

  4. Solid and inorganic waste


Correct Option: A
Explanation:

Sullage water is produced by kitchen activities.

A city’s sewage was disposed into a water body. It was noticed that the aquatic animals in the body started dying. What effect of sewage led to the death of aquatic life?

  1. Utilisation of oxygen from water body

  2. Utilisation of CO2 from water

  3. Increasing temperature of water body

  4. Increasing metal content in water body


Correct Option: A
Explanation:

Sewage is an oxygen-consuming material. It decreases the oxygen content of the water body and thus, the amount of oxygen available for aquatic organisms decreases.

Match the following.

1. Oil and Fats A. Prevent free flow of oxygen
2. Paints and solvents B. Kill water purifying microbes
3. Solid food remains C. Block pipes and clog soil pores
  1. 1 – B, 2 – C, 3 – A

  2. 1 – C, 2 – A, 3 – B

  3. 1 – C, 2 – B, 3 – A

  4. 1 – B, 2 – A, 3 – C


Correct Option: C
Explanation:

Oil and fats $\to$ Block pipes and clog soil pores Paints and solvents $\to$ Kill water purifying microbes Solid food remains $\to$ Prevent free flow of oxygen

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