OWP Water Distribution System Operation and Maintenance
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Chapter 1 Exam with verified answers || || || || ||
acid rain - correct answer✔✔acidic precipitation caused by emissions from vehicles and
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factories reacting with water vapor in the atmosphere
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algae - correct answer✔✔microscopic aquatic plant-like organisms that are a primary food
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source in many aquatic ecosystems
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algal bloom - correct answer✔✔a rapid growth of algae in a body of water, which can
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deplete oxygen levels and harm other aquatic life
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anaerobic - correct answer✔✔an environment lacking oxygen
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aquifer - correct answer✔✔an underground layer of rock or sediment that holds
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groundwater
back pressure - correct answer✔✔pressure exerted in the opposite direction of normal flow
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in a pipe
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backflow - correct answer✔✔the undesired reversal of flow in a pipe
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backsiphonage - correct answer✔✔the creation of a vacuum in a pipe that sucks || || || || || || || || || || || || ||
contaminants back into the water supply || || || || ||
capillary action - correct answer✔✔the ability of a liquid to rise in a narrow space due to
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surface tension ||
, capillary fringe - correct answer✔✔the zone above the water table where the ground is
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saturated with water held by capillary action
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carcinogen - correct answer✔✔a cancer-causing substance
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chloramines - correct answer✔✔a disinfectant used in drinking water that is a combination
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of chlorine and ammonia
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cross-connection - correct answer✔✔an unintended connection between a drinking water || || || || || || || || || ||
supply and a source of contamination
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direct runoff - correct answer✔✔water that flows directly over the land surface and into
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streams or rivers || ||
electrochemical - correct answer✔✔relating to the interaction of electricity and chemicals|| || || || || || || || || ||
entrain - correct answer✔✔to trap and carry along with a moving fluid
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head - correct answer✔✔the pressure exerted by a column of water
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impermeable - correct answer✔✔not allowing fluids to pass through || || || || || || || ||
interface - correct answer✔✔the boundary between two substances
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macroscopic organisms - correct answer✔✔organisms large enough to be seen with the
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naked eye ||
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Chapter 1 Exam with verified answers || || || || ||
acid rain - correct answer✔✔acidic precipitation caused by emissions from vehicles and
|| || || || || || || || || || || ||
factories reacting with water vapor in the atmosphere
|| || || || || || ||
algae - correct answer✔✔microscopic aquatic plant-like organisms that are a primary food
|| || || || || || || || || || || ||
source in many aquatic ecosystems
|| || || ||
algal bloom - correct answer✔✔a rapid growth of algae in a body of water, which can
|| || || || || || || || || || || || || || || ||
deplete oxygen levels and harm other aquatic life
|| || || || || || ||
anaerobic - correct answer✔✔an environment lacking oxygen
|| || || || || ||
aquifer - correct answer✔✔an underground layer of rock or sediment that holds
|| || || || || || || || || || || ||
groundwater
back pressure - correct answer✔✔pressure exerted in the opposite direction of normal flow
|| || || || || || || || || || || || ||
in a pipe
|| ||
backflow - correct answer✔✔the undesired reversal of flow in a pipe
|| || || || || || || || || ||
backsiphonage - correct answer✔✔the creation of a vacuum in a pipe that sucks || || || || || || || || || || || || ||
contaminants back into the water supply || || || || ||
capillary action - correct answer✔✔the ability of a liquid to rise in a narrow space due to
|| || || || || || || || || || || || || || || || ||
surface tension ||
, capillary fringe - correct answer✔✔the zone above the water table where the ground is
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saturated with water held by capillary action
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carcinogen - correct answer✔✔a cancer-causing substance
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chloramines - correct answer✔✔a disinfectant used in drinking water that is a combination
|| || || || || || || || || || || || ||
of chlorine and ammonia
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cross-connection - correct answer✔✔an unintended connection between a drinking water || || || || || || || || || ||
supply and a source of contamination
|| || || || ||
direct runoff - correct answer✔✔water that flows directly over the land surface and into
|| || || || || || || || || || || || || ||
streams or rivers || ||
electrochemical - correct answer✔✔relating to the interaction of electricity and chemicals|| || || || || || || || || ||
entrain - correct answer✔✔to trap and carry along with a moving fluid
|| || || || || || || || || || ||
head - correct answer✔✔the pressure exerted by a column of water
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impermeable - correct answer✔✔not allowing fluids to pass through || || || || || || || ||
interface - correct answer✔✔the boundary between two substances
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macroscopic organisms - correct answer✔✔organisms large enough to be seen with the
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naked eye ||
