Exam 4 - Study Guide (plumbing) Questions with Latest Update
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Course
Plumbing
Institution
Plumbing
What is DWV? - Answer-drain waste vent
The average human adult can survive about ___ without water intake - Answer-7 - 10 days
The average human adult can survive about ___ without food intake - Answer-30 days
How many people in the world do not have access to safe drinking water? - Answer...
Exam 4 - Study Guide (plumbing)
Questions with Latest Update
What is DWV? - Answer-drain waste vent
The average human adult can survive about ___ without water intake - Answer-7 - 10
days
The average human adult can survive about ___ without food intake - Answer-30 days
How many people in the world do not have access to safe drinking water? - Answer-~1
billion
What is the average distance that women in Africa and Asia walk to collect water? -
Answer-3.7 miles
By 2025 at the rate we are going, it is estimated that ___ of the world will be living with
*water scarcity* or *total water deprivation* - Answer-2/3
While the amount of freshwater has ____ over time, the population on earth has ___ -
Answer-remained constant; exploded
What percentage of the earth is covered by water? - Answer-70%
What percentage of total water is freshwater? - Answer-2.5%
What percentage of total freshwater is easily accessible? - Answer-1%
Where is the majority of freshwater / non-accessible water? - Answer-glaciers and
snowfields
What percentage of the total water on earth is available to fuel and feed its 6.8 billion
people? - Answer-0.007%
What is the U.S. average for water consumption? - Answer-2,220 gpd
What is gpd? - Answer-gallons per day
What sector is the *main* consumer of freshwater? - Answer-agriculture
What happens when water is "lost" to our use? - Answer-it is recycled at planetary level;
no longer accessible/possible for us to use
, The top three sectors of water consumption ALONE consume what percentage of total
freshwater usage? - Answer-55%
What occurred at the Chicago World's Fair in 1933? - Answer-dysentery outbreak
What was the result of the events at Chicago World's Fair in 1933? - Answer-1,704
cases of illness and 98 deaths
What caused the outbreak at the Chicago World's Fair in 1933? - Answer-faulty
plumbing at a hotel polluted the domestic water supply
Who does Dr. Lewis Thomas credit for improved health? - Answer-plumbers; NOT
medicine/doctors
How far back does our historical knowledge go? - Answer-4 - 5000 BCE
Where is Babylon? - Answer-100 km SW of Baghdad in modern day Iraq
What did they do (restroom) in Babylon? - Answer-squatted over an opening in the floor
where wastes fell into perforated cesspool located under the house
Where was the earliest evidence of water piping discovered? - Answer-Babylon
How far back does the earliest evidence of piping discovered date? - Answer-4,000
BCE
Around 4000 - 2,500 BCE in Eshunna/Babylonia of the Mesopotamian Empire (Iraq)
they had ____ - Answer-storm water drain systems in the streets, with most houses
connected
What two important developments came from the Roman Empire? - Answer-need for a
water supply system and need to handle human waste
___ were common in the Roman Empire and were often associated with the ___ -
Answer-public latrines; public baths
A(n) ___ delivered water continuously in troughs beneath the latrine seats and the
waste discharged through sewers into the Tiber River - Answer-aqueduct system
Who built the baths (Roman Empire)? - Answer-M. Gavius Maximus, praefectus
praetorio
When were the baths build (Roman Empire)? - Answer-second century AD; 193 - 225
AD
The Romans became the first to regularly use ____ - Answer-pipe to direct water
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