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UPSC CDS Current Affairs — practice questions — page 8

Explore 218 free Current Affairs questions in UPSC CDS Environment. Open each question or exercise to read its content, reference answers and available explanation.

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Current Affairs questions and exercises with answers

Showing questions 211–218 of 218.

Worked practice questions

Catch the treatment steps

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Items
  1. Matches the category
    Yes
    Item
    Bar screen
  2. Matches the category
    Yes
    Item
    Grit tank
  3. Matches the category
    Yes
    Item
    Clarifier
  4. Matches the category
    Yes
    Item
    Aeration
  5. Matches the category
    Yes
    Item
    Sludge tank
  6. Matches the category
    Yes
    Item
    Chlorine
  7. Matches the category
    No
    Item
    Cooking oil
  8. Matches the category
    No
    Item
    Paint
Category
Treatment steps
Instructions
Catch the stages of a wastewater treatment plant. Let the drain-cloggers fall.
_Source: syllabus Science, Chapter 18, Wastewater Story._

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Pop the water borne diseases

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Other terms
  1. Malaria
  2. Dengue
  3. Asthma
  4. Scurvy
Matching terms
  1. Cholera
  2. Typhoid
  3. Polio
  4. Meningitis
  5. Hepatitis
  6. Dysentery
Instructions
Pop the diseases spread by polluted water. Leave the others.
_Source: syllabus Science, Chapter 18, Wastewater Story._

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Run the treatment plant

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Questions
  1. Correct
    Anaerobic
    Choices
    1. Anaerobic
    2. Aerobic
    3. Earthworm
  2. Correct
    Aerobic
    Choices
    1. Anaerobic
    2. Aerobic
    3. Earthworm
  3. Correct
    Earthworm
    Choices
    1. Anaerobic
    2. Aerobic
    3. Earthworm
  4. Correct
    Sludge
    Choices
    1. Sludge
    2. Skimmer
    3. Biogas
  5. Correct
    Skimmer
    Choices
    1. Sludge
    2. Skimmer
    3. Biogas
  6. Correct
    Biogas
    Choices
    1. Sludge
    2. Skimmer
    3. Biogas
Instructions
Who works: sludge tank, aerated water, vermi toilet; then: settled solids, grease remover, sludge gas.
_Source: syllabus Science, Chapter 18, Wastewater Story._

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