Tag: water borne disease

Questions Related to water borne disease

Waste water from industries contain

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  1. microbes

  2. poisonous substances

  3. oil

  4. minerals

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Correct Option: B

When water is passed through filter beds of sand and gravel to remove smaller particles of dust is called

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. oxygenation

  2. chlorination

  3. sedimentation

  4. filtration

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Correct Option: D

Water pollution is mainly caused by

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  1. earthquake

  2. human activity

  3. forest fire

  4. biological decay

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Correct Option: B

Disease caused by the use of untreated water is

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. Tuberculosis

  2. Typhoid

  3. Cholera

  4. Both B and C

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Correct Option: D
Explanation:
Tuberculosis is caused due to Mycobacterium tuberculosis. It is caused due to the infection of lungs due to inhaling the contaminated air.
Typhoid is mainly caused due to bacteria Salmonella typhimurium. The intestine and bloodstream of humans is the main source of proliferation of bacteria. The direct contact with the untreated water containing the feces of an infected person is the main cause of the spread of the disease. 
Cholera is a disease which causes severe dehydration due to infection of the bacterium called Vibrio cholerae. Consumption of contaminated food and water mainly causes the disease. 
So, the correct answer is option D.

Which of the following chemical is used to disinfect water

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. Chlorine

  2. washing soda

  3. coal

  4. petrol

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Correct Option: A

Which of the following need to be done before chemical treatment and biological treatment?

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. Screening only

  2. Filteration only

  3. Boiling of water

  4. Both A and B

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Correct Option: D

water pollution can cause 

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. climate change

  2. deforestation

  3. diseases

  4. none of the above

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Correct Option: C

In a filtration plant, water is filtered using layers of 

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. sand

  2. oil

  3. sand and clay

  4. sand, fine gravel and medium gravel

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Correct Option: D

Water before treatment contains

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. Nitrogen

  2. Oxygen

  3. Phosphorus

  4. Both A and C

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Correct Option: D

Which of the following is/are useful ways of utilizing waste water?

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. Certain pollutants in sewage water can become fertilizer for various crops.

  2. Waste water can be used for recharging the ground water.

  3. Waste water can be used for irrigation.

  4. All of the above.

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Correct Option: D
Explanation:
Waste water can be used for multiple purposes as mentioned below-
(a) For recharging the groundwater.
(b) It can be used for irrigation.
(c) Treated municipal water can be used for washing cars and watering the gardens.
(c) Certain pollutants in sewage water can be used as fertilizers for various crops.
Therefore, the correct answer is option D.