Plumbing Level 1, Module 1 Graded A+
1. What is the term for a device that prevents contaminated water from entering a clean water supply? - Answer: A backflow preventer is a device designed to stop nonpotable water from infiltrating a
potable water supply system.
2. Which phase of a plumbi...
1. What is the term for a device that prevents contaminated water from entering a clean water supply?
- Answer: A backflow preventer is a device designed to stop nonpotable water from infiltrating a
potable water supply system.
2. Which phase of a plumbing project involves installing fixtures and appliances?
- Answer: The finish phase, also known as trim-out or trim finish, is where plumbers put in fixtures,
appliances, water purification systems, water heaters, and controls.
3. Define the practice of removing harmful organisms from drinking water.
- Answer: Disinfection is the process utilized to eliminate harmful organisms from potable water.
4. What is a bioswale?
- Answer: A bioswale is a ground depression designed to filter pollutants from stormwater runoff.
5. Explain aquifer depletion.
- Answer: Aquifer depletion refers to the extraction of underground freshwater at a pace that exceeds
its natural replenishment rate.
, 6. What does DWV stand for in plumbing systems?
- Answer: DWV stands for drain, waste, and vent, which combines sanitary drainage with venting
systems.
7. What does the term 'appurtenances' refer to in plumbing?
- Answer: Appurtenances are accessories or devices that do not require water supply demands and do
not add any load to the waste system.
8. What does the term 'backflow' mean?
- Answer: Backflow occurs when contaminated water flows into a freshwater system due to a cross-
connection between the potable and nonpotable systems.
9. Describe the concept of filtration in water treatment.
- Answer: Filtration is the method of purifying water to eliminate particles and chemicals.
10. Identify the general meaning of the term 'code' in construction.
- Answer: In construction, a code refers to requirements set forth by state and local governments that
establish minimum construction standards with legal implications.
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