1
A water meter is a mechanical device used to measure water ___.
volume
A(n) ___ is an artifical waterway constructed to convey water.
canal
What drives the hydrologic cycle?
sun
What is the pH scale range?
0 to 14
What is the continuous cycle of evaporation, condensation, precipitation, infiltration, and runoff of water called?
Hydrologic cycle
Freshwater is naturally occurring water, which is __% of global water such as lakes, rivers, streams, ground water
2.5%
A __ applies 2 any bridge/viaduct that transports water across a hollow or valley, sometimes also called a water bridge.
aqueduct
A ___ well is a well that is made by excavating a circular hole several feet in diameter to a rather shallow depth
dug
Gray water does not contact what?
Fecal matter
What are the two types of aquifers?
Unconfined and confined
It is estimated that ___% of the population died during the Dark Ages due to diseases such as cholera, hepatitis
25%
___ is the measure of relative clarity of a liquid.
turbidity
water cycle, is the continuous evaporation, condensation, precipitation, ___, and infiltration of water
runoff
What is black water?
Contains fecal matter
What color piping is required for reclaimed water?
Purple
___ is a fuel that is what remains when the impurities in coal, such as tar and gas, are removed by high temps
Coke
water supply system can be separated into three main areas
water supply source, treatment facilities, building water supply system
The _ process removes dissolved minerals, like calcium and magnesium from potable water through an ion-exchange process
water softening
How far should sewers be from wells?
50 feet
How much of the Earth's surface is covered by glacial ice?
10%
___ water is suitable for drinking, culinary, and hygienic purposes.
Potable
a __ water system is a water system that provides waterto a min of 15 service connection 2 25 people 4 a min of 60 days
public
___ is a water treatment process where heavy solids are allowed to settle to the bottom of the treatment tank by gravity
sedimentation
sublimation?
Solid to gas
What are the components of a water treatment facility?
Intake works, treatment plant, finished water storage, pumping stations