Exam (elaborations)
NCCER plumbing 1 MODULE 1
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NCCER plumbing 1 MODULE 1
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NCCER plumbing 1 MODULE 1latin word for lead - -Plumbum
-latin word for person who works with led - -plumbarius
-When was the first supply pipe laid - -Mid 1300's in London
-When and where were the first apprenticeship laws for plumbing enacted ?
- -1625 in england
-developed in the 1930s, What was the first plastic used in plumbing - -PVC
- polyvinyl chloride
-In 1993 the non-profit (USGBC) united states green building council
developed what - -the Leadership in Energy & environmental design (LEED)
-most states require plumbers to be licensed as - -journey man , master
plumber , or plumbing contractor
-Biggest health and safety issues in plumbing are caused by - -
contamination caused by improper cross connection between plumbing
systems
-What does the backflow preventer do? - -keeps waste water from entering
the water supply system
-how do you prevent the spread of harmful chemicals through water supply
systems - -needs to be disinfection , filtration , and softening
-when did plumbing re-emerge as a profession - -1625
-Backflow - -a term in plumbing for an unwanted flow of water in the
reverse direction. It can be a serious health risk for the contamination of
potable water supplies with foul water.
-Bioswale - -A depression in the ground that filters pollutants from
stormwater.
-whats a heavy gas thats used as a disinfectant in water treatment - -
chlorine
-Devices that receive water from a water supply line - -Fixtures. ex: sinks ,
toilets
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