ACTUAL QUESTIONS AND CORRECT
ANSWERS
Critical Thinking - CORRECT ANSWER Intellectually disciplined process of actively and
skillfully conceptualizing, applying, analyzing, synthesizing, and evaluating information as a guide to
belief and action.
Water Quality - CORRECT ANSWER The chemical, physical, and biological characteristics of
water with respect to its suitability for a purpose.
Domestic Water Use - CORRECT ANSWER Water used for household purposes.
Percent of domestic water delivered by public supply - CORRECT ANSWER 85%
Percent of U.S. population supplying their own water - CORRECT ANSWER 15%
Commercial Water Use - CORRECT ANSWER Water used for commercial facilities and
institutions.
Public Water Supply - CORRECT ANSWER Water withdrawn by public agencies and
delivered to users.
Minimum service connections for a municipal water system - CORRECT ANSWER 15
connections or 25 individuals daily for at least 60 days per year.
Watershed - CORRECT ANSWER A land area that drains water to a particular stream, river, or
lake.
Another name for watershed - CORRECT ANSWER Drainage basin
Watershed boundary - CORRECT ANSWER A divide
, Continental Divide - CORRECT ANSWER Separates flow of water between Pacific and
Atlantic Oceans.
Cubic Feet per Second (CFS) - CORRECT ANSWER A rate of flow equal to 7.48 gallons per
second.
Million Gallons per Day (MGD) - CORRECT ANSWER 3.0689 acre-feet per day.
Conveyance Loss - CORRECT ANSWER Water lost in transit through leakage or evaporation.
Erosion - CORRECT ANSWER Soil worn away by water or wind.
Drawdown - CORRECT ANSWER Lowering of groundwater surface caused by pumping.
Artificial Recharge - CORRECT ANSWER Process of putting water back into groundwater
storage.
Effluent - CORRECT ANSWER Treated water flowing from a sewage treatment plant.
Estuary - CORRECT ANSWER Place where fresh and saltwater mix.
Transpiration - CORRECT ANSWER Evaporation of water absorbed by plants.
Evapotranspiration - CORRECT ANSWER Evaporation plus transpiration.
Tributary - CORRECT ANSWER Smaller stream that flows into a larger one.
Turbidity - CORRECT ANSWER Amount of suspended particles in water measured in NTU.