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Water Treatment & Supply

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Instructions: Dive into questions about water treatment, purification, and supply engineering!

  1. 1.

    What chemical is most commonly used to disinfect drinking water in municipal water treatment plants?

    A
    Hydrogen peroxide
    B
    Chlorine
    C
    Fluoride
    D
    Iodine
  2. 2.

    What is the process of removing salt from seawater to make it drinkable called?

    A
    Distillation
    B
    Filtration
    C
    Desalination
    D
    Pasteurization
  3. 3.

    In water treatment, what does the sedimentation process accomplish?

    A
    Increases water pressure
    B
    Allows heavy particles to settle to the bottom
    C
    Kills bacteria
    D
    Adds minerals to water
  4. 4.

    The ancient Romans built extensive aqueduct systems to supply water. Which famous aqueduct near Nimes, France, still stands today?

    A
    Pont du Gard
    B
    Aqua Appia
    C
    Aqueduct of Segovia
    D
    Aqua Claudia
  5. 5.

    What is 'reverse osmosis' in water treatment?

    A
    Heating water to kill bacteria
    B
    Forcing water through a semi-permeable membrane to remove contaminants
    C
    Adding chemicals to water
    D
    Using UV light to purify water
  6. 6.

    Which country is the world's largest producer of desalinated water?

    A
    Australia
    B
    Saudi Arabia
    C
    Israel
    D
    United Arab Emirates
  7. 7.

    What is the purpose of adding fluoride to municipal drinking water?

    A
    To remove heavy metals
    B
    To improve taste
    C
    To kill bacteria
    D
    To prevent tooth decay
  8. 8.

    What is 'coagulation' in the water treatment process?

    A
    Straining water through cloth
    B
    Freezing water to kill pathogens
    C
    Adding chemicals to cause fine particles to clump together
    D
    Boiling water for purification
  9. 9.

    The Croton Aqueduct, completed in 1842, brought clean water to which major American city?

    A
    Chicago
    B
    Boston
    C
    New York City
    D
    Philadelphia
  10. 10.

    What is an 'activated sludge' process used for in wastewater treatment?

    A
    Biologically breaking down organic matter
    B
    Generating electricity
    C
    Filtering out metals
    D
    Storing treated water
  11. 11.

    Dr. John Snow's 1854 investigation of a cholera outbreak in London linked the disease to what?

    A
    Contaminated water from a public pump
    B
    Bad air (miasma)
    C
    Rat infestations
    D
    Infected food
  12. 12.

    What does UV disinfection use to treat water?

    A
    Ultraviolet light
    B
    Electrical current
    C
    Heat
    D
    Sound waves
  13. 13.

    What is a 'water table' in hydrogeology?

    A
    A tidal measurement system
    B
    A measurement chart for water quality
    C
    A platform for water testing equipment
    D
    The upper surface of groundwater saturation
  14. 14.

    Singapore's NEWater program recycles treated wastewater for drinking. What technology does it primarily rely on?

    A
    Chemical treatment only
    B
    Chlorination only
    C
    Microfiltration, reverse osmosis, and UV disinfection
    D
    Boiling and condensation
  15. 15.

    What was the main engineering challenge that led to the construction of the London sewage system in the 1860s?

    A
    Industrial pollution
    B
    Population growth
    C
    Flooding
    D
    The Great Stink of 1858

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