Water Treatment Exam 1| 71 questions| with complete answers
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Course
Water Treatment
Institution
Liberty University
What are the main steps during the Hydrologic cycle? Correct Answer: 1. Evaporation
2. Condensation
3. Transportation
4. Transpiration
5. Precipitation
6. Runoff
Evaporation Correct Answer: Defined as: Water is transferred from earths surface to atmosphere.
-80% occurs from oceans
-Eva...
water treatment exam 1| 71 questions| with complete answers
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Liberty University
Water Treatment
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Water Treatment Exam 1| 71 questions| with
complete answers
What are the main steps during the Hydrologic cycle? Correct Answer: 1. Evaporation
2. Condensation
3. Transportation
4. Transpiration
5. Precipitation
6. Runoff
Evaporation Correct Answer: Defined as: Water is transferred from earths surface to
atmosphere.
-80% occurs from oceans
-Evaporation occurs more at warm temperatures
Condensation Correct Answer: Defined as: Conversion of water vapor to liquid
-excess water vapor condenses to form cloud droplets
Transportation Correct Answer: Defined as: Movement of water in the atmosphere
-Also referred to as Advection
Precipitation Correct Answer: rain, hail, snow, sleet, freezing rain
-Amount varies by location & time
-Ecosystems are structured by:
1. Precipitation
2. Temperature
Where is ground water found within soil? Correct Answer: Zone of aeration & zone of
saturation
Groundwater Correct Answer: Defined as: Water that has penetrated the surface and is found in
the soil
Watertable Correct Answer: Defined as: The boundary between zone of saturation and zone
What are two steps during hydrologic cycle that are considered as "pure water" processes? Why
are they important? Correct Answer: 1. Evaporation- movement of "sea" water
2. Evaportranspiration- movement of water through plants.
They are important because they are " pure water" processes humans rely on for fresh water.
Excess water usage & development around water resources result in? Correct Answer: 1.
Decline in water quantity
2. Decline in water quality
, Potable water Correct Answer: Defined as: Water fit for human consumption
Pathogen Correct Answer: Defined as: Disease causing organism including; viruses, bacteria,
and protozoans
Compare & Contrast Characteristics of Groundwater & Surface water Correct Answer:
Groundwater:
*Uniform quality
-Low turbidity
-low taste/odor
-low color
-low/ no dissolved oxygen
-Undesirable minerals- High Fe, Mn, CaCO3
-High hardness
What are the objectives of public drinking water treatment Correct Answer: 1. Provide potable
water for safe human consumption
2. To provide aesthetically acceptable water
- Turbidity
- Color
- Taste
-Odors
outline the sources of groundwater vs. sources of surface water Correct Answer: Groundwater-
-Deep wells (more dissolved materials)
-Shallow wells
Surface Water
-Rivers
-Lakes
-Reservoirs
~sometimes springs
What is the main process of surface water treatment? Why? Correct Answer: Clarification-to
remove suspended particles (turbidity) & color
What are the main steps during the clarification process Correct Answer: Coagulation
Sedimentation
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