Tag: evs

Questions Related to evs

Sewage water is freshened up by

evs sources of water water as nutrient basics of water pollution nutrients and deficiency

  1. Boiling

  2. Chemical treatment

  3. Biological treatment

  4. Both B and C

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Correct Option: D

Manholes are located at every .......... in the sewerage.

evs sources of water water as nutrient basics of water pollution nutrients and deficiency

  1. 10 to 20 m

  2. 1 to 2 km

  3. 50 to 60 m

  4. 3 km

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Correct Option: C

Domestic and municipal supplies of water constitutes percentage of total water consumption

evs sources of water water as nutrient basics of water pollution nutrients and deficiency

  1. 19%

  2. 11%

  3. 7%

  4. 1.1%

Show answer
Correct Option: D
Explanation:
  • Drinking water, also known as potable water, is water that is safe to drink or to use for food preparation.
  • The amount of drinking water required to maintain good health varies, and depends on physical activity level, age, health-related issues, and environmental conditions.
  • Domestic and municipal supplies of water constitute 1.1%  percentage of total water consumption.
  • So,the correct answer is '1.1%'.

Which of the chemical is used to freshened up the wastewater?

evs sources of water water as nutrient basics of water pollution nutrients and deficiency

  1. Boric acid

  2. Naphtelene

  3. Chlorine

  4. None of the above

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Correct Option: C

Many sewer pipelines connect to form the 

evs sources of water water as nutrient basics of water pollution nutrients and deficiency

  1. Drainage

  2. Wastewater body

  3. Sewerage

  4. All of the above

Show answer
Correct Option: C
Explanation:

Sewerage is the infrastructure that conveys sewage from many sewer pipelines. Drainage is an artificial passageway that carries the waste water from the houses. Sewer pipelines are artificial passageway used to carry the sewage and water water from the drainage system. It then carries the waste water to the municipal sewage system or sewerage.   

Thus, the correct answer is option C.

Potable water is the water which is

evs sources of water water as nutrient basics of water pollution nutrients and deficiency

  1. Obtained from a river.

  2. Obtained from a lake.

  3. Pure and fit for drinking.

  4. Used only for washing clothes.

Show answer
Correct Option: C
Explanation:

Potable water is a water which is fit for consumption by humans and other animals. It is also called as drinking water, in a reference to its intended use. Water may be naturally potable, as is the case with pristine springs, or it may need to be treated in order to be safe. In either instance, the safety of water is assessed with tests which look for potentially harmful contaminants.

Therefore, the correct answer is option C.

Maximum use of fresh water is in

evs sources of water water as nutrient basics of water pollution nutrients and deficiency

  1. Agriculture

  2. Domestic use

  3. Industry

  4. Pisciculture

Show answer
Correct Option: A
Explanation:

Maximum use of fresh water is in agriculture. About 70% of the total fresh water is used in agriculture. About 20% is used for industrial purpose. About 10% of the fresh water is used for domestic and municipal use.

Thus, the correct answer is 'Agriculture.'

Name the first Indian woman who climbed Mount McKinley?

a visit to mountain climbers and their story india: relief features relief features of india evs

  1. Santosh Yadav

  2. Premlata Agarwal

  3. Bachendri Pal

  4. Arunima Sinha

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Correct Option: B

The world's highest peak is  _________________.

a visit to mountain climbers and their story india: relief features relief features of india evs

  1. Kangchenjunga

  2. Mount Everest

  3. Karakoram range

  4. Nanga Parbat

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Correct Option: B

The mountaineers have to carry an ______ cylinder to breath properly.

a visit to mountain climbers and their story india: relief features relief features of india evs

  1. nitrogen

  2. carbon di oxide

  3. oxygen

  4. hydrogen

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Correct Option: C