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E D U C A T I O N

Water treatment engineering test

Section A

Section B

Instructions:


  • Choose the correct answer by clicking it
  • Answer all 20 questions
  • Then press the 'submit' button at the end to see your results
  • QUESTION 1

    1. What is an artesian well?
    A. Source of the stream or river.
    B. Water that turned into vapour.
    C. A water well that does not require a pump to bring water to the surface.
    D. The tidal mouth of a large river, where the ocean tides meets the stream.

    2.What is an aquifer?
    A. A body of porous rock or sediment saturated with undergroundwater.
    B. The tidal mouth of a large river, where the ocean tides meets the stream.
    C. Water that turned into vapour.
    D. A small body of still water formed naturally or artifcially.

    3.What is an estuary?
    A. The tidal mouth of a large river, where the ocean tides meets the stream.
    B. Water found underground in the cracks and spaces in soil, sand and rock.
    C. Water that turned into vapour.
    D. A small body of still water formed naturally or artifcially.

    4. What is an evaporation?
    A. The process of adding chlorine to water to disinfect it.
    B. The process of adding air, and thus oxygen, to water.
    C. The process of turning from liquid into vapour.
    D. The process of adding fluoride to drinking water to help prevent tooth decay.

    5. What is filtration?
    A. The process of adding chlorine to water to disinfect it.
    B. The process of adding fluoride to drinking water to help prevent tooth decay.
    C. The process of adding air, and thus oxygen, to water.
    D. A process used to separate solid particles from fluid using a filter.

    6. What is groundwater?
    A. Water found underground in the cracks and spaces in soil, sand and rock.
    B. A small body of still water formed naturally or artifcially.
    C. Water found on the surface of the Earth.
    D. Water that turned into vapour.

    7. What is headwater?
    A. The process of removing salt from seawater.
    B. Source of the stream or river.
    C. The process of adding chlorine to water to disinfect it.
    D. The process of adding air, and thus oxygen, to water.

    8. What is a hydrologic cycle?
    A. Source of the stream or river.
    B. Artifical application of water to land to help grow crops.
    C. A small body of still water formed naturally or artifcially.
    D. The continuous circulation of water on, above, and below the surface of the earth.

    9. What is an irrigation?
    A. The process of removing salt from seawater.
    B. The process of adding chlorine to water to disinfect it.
    C. A process that removes ions from water.
    D. Artifical application of water to land to help grow crops.

    10. What is a pond?
    A. A part of a forest with animals living in it.
    B. A small body of still water formed naturally or artifcially.
    C. A part of a desert with animals living in it.
    D. A part of an ocean with animals living in it.

    11. What is an cryosphere?
    A. The hottest part of the world.
    B. The frozen part of the world.
    C. The atmosphere of the planet of Mercury.
    D. The atmosphere of the planet of Venus.

    12. What is desalination?
    A. A process that removes ions from water.
    B. The process of adding air, and thus oxygen, to water.
    C. The process of adding chlorine to water to disinfect it.
    D. The process of removing salt from seawater.

    13. What is distillation?
    A. The action of purifying a liquid by process of heating and cooling.
    B. The process of adding chlorine to water to disinfect it.
    C. The process of adding air, and thus oxygen, to water.
    D. A process that removes ions from water.

    14. What is a condenser?
    A. A device that removes ions from water.
    B. A device that adds chlorine to water to disinfect it.
    C. A device that removes heat from vapor, causing it to condense into a liquid.
    D. A device that of adds air, and thus oxygen, to water.

    15. What is a deionization?
    A. A process that removes ions from water.
    B. The process of adding fluoride to drinking water to help prevent tooth decay.
    C. The process of adding air, and thus oxygen, to water.
    D. The process of adding chlorine to water to disinfect it.

    16. What is aeration?
    A. The process of adding air, and thus oxygen, to water.
    B. The process where heavier solid particles settles at the bottom of the water.
    C. The process of adding chlorine to water to disinfect it.
    D. The process of adding fluoride to drinking water to help prevent tooth decay.

    17. What is fluoridation?
    A. The process of adding ozone gas to water to purify it.
    B. The process where heavier solid particles settles at the bottom of the water.
    C. The process of adding chlorine to water to disinfect it.
    D. The process of adding fluoride to drinking water to help prevent tooth decay.

    18. What is a sedimention?
    A. The process of adding chlorine to water to disinfect it.
    B. The process where heavier solid particles settles at the bottom of the water.
    C. The process of adding ozone gas to water to purify it.
    D. The process of adding fluoride to drinking water to help prevent tooth decay.

    19. What is chlorination?
    A. The process where heavier solid particles settles at the bottom of the water.
    B. The process of adding ozone gas to water to purify it.
    C. The process of adding fluoride to drinking water to help prevent tooth decay.
    D. The process of adding chlorine to water to disinfect it.

    20. What is an ozone treatment?
    A. The process of adding fluoride to drinking water to help prevent tooth decay.
    B. The process where heavier solid particles settles at the bottom of the water.
    C. The process of adding chlorine to water to disinfect it.
    D. The process of adding ozone gas to water to purify it.

    Instructions:


  • Choose the correct answer by clicking it(question1)
  • Write the correct answer(question2)
  • Answer all 30 questions
  • Then press the 'submit' button at the end to see your results
  • QUESTION 1

    State whether the following statements are true or false.

    1. A chemical formula for water is H2O.
    True
    False

    2. A chemical formula for water is C5H12.
    True
    False

    3. Ozone can be used to make water taste and smell better.
    True
    False

    4. Ozone is a an effective disinfectant for water.
    True
    False

    5. Water chlorinatin removes all pathogen in the water.
    True
    False

    6. Water fluoradation is a natural process.
    True
    False

    7. Flouride is a man-made chemical used in water treatment.
    True
    False

    8. Water aeration is used to remove excess dissolved gases from water.
    True
    False

    9. Aeration converts dissolved iron and manganese into insoluble, oxidized forms.
    True
    False

    10. Aeration increases the acidity of water.
    True
    False

    11. Aeration decreases the acidity of water.
    True
    False

    12. Deionization effectively removes viruses from water.
    True
    False

    13. Groundwater is a non-renewable natural resource.
    True
    False

    14. Distillation effectively removes heavy metals from water.
    True
    False

    15. Ground water is always moving , mostly downwards but also horizontally.
    True
    False

    QUESTION 2

    Choose the correct word from the box below and write it in the space provided.

    unsaturated

    perennial

    advection

    precipitation

    backish

    permeability

    saturated

    membrane

    hydrograph

    thermal

    saline

    reservoir

    arch

    salinity

    ephemeral

    1. Water containing dissolved salt, such as seawater is called water

    2. Water that has higher salt concentration than freshwater but lower than seawater is called water.

    3. The desalination uses heat to evaporate saline water then turn it to freshwater.

    4. The desalination uses reverse osmosis to turn saline water into freshwater.

    5. The movement of dissolved substances in water by the bulk movement of the water itself is called

    6. The saltiness of the water is called

    7. Water falling back into Earth in forms like rain or snow is called

    8. A large body of water, either natural or man made is called

    9. Surface water that is present year-round such as lakes is called water.

    10. Surface water that is only present at certain times of the year is called water.

    11. A measure of how easily water can flow through a material is called

    12. The subsurface area where all the pore spaces in the soil and rocks are filled with water is called zone.

    13. The subsurface area where all the pore spaces in the soil and rocks contain both air and water is called zone.

    14. A graph showing the discharge of a river or stream over time is called

    15. A dam that curves upstream and transfers the water load to the abutment is called dam.

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