2. A(n) (a)   is a facility that provides the means to process raw water to applicable water standards using mechanical, physical, biological, and chemical methods.

3. A(n) (a)   is a downhill-sloping underground channel or tunnel with a series of vertical well-like access shafts used to transport underground or aquifer water to create a spring or spring-like source of water.

4. A(n) (a)   is an artificial waterway constructed to convey water.

5. The best plumbing of the (a)   was relegated to the digging of wells and providing water for the moats that surrounded castles and small towns.

6. Early toilets, called (a)   , were essentially dry toilets that captured waste in sand to be removed later.

7. A(n) (a)   pump, sometimes called a pitcher pump, is a reciprocating positive-displacement pump.

8. A centrifugal pump consists of three major parts: the volute, the (a)   , and a source of power.

9. The (a)   was widely accepted and used as the basis for codes adopted throughout the United States.

10. Through (a)   , coagulants remove contaminants and corrosive particles from raw water that are not removed by sedimentation.

11. A(n) (a)   is a fitting that maintains the flow line at the same elevation as it reduces the size of the run.

1. A(n) (a)   is a set of technical definitions, instructions, rules, guidelines, or characteristics created to provide reliable and similar results.

2. A product that bears the " (a)   " or shield label has demonstrated compliance with the specific standard or standards to which it was tested.

3. (a)   is a form of corrosion and weakening of copper alloy components, specifically brass, in which zinc is dissolved out of the brass alloy.

4. (a)   steel pipe is steel pipe that has been cleaned and hot-dipped in an 870°F (466°C) molten zinc bath to create a protective coating.

5. (a)   should be made at each underground joint to facilitate joining.

7. Schedule pipe is (a)   with an outside diameter and a wall thickness that matches the wall thickness of the same size and schedule as steel pipe.

6. (a)   is plastic that can be repeatedly softened by heating and hardened by cooling.

8. Polyethylene (PE) pipe is made from ethylene, which can be derived from either crude oil or (a)   .

9. (a)   is a restoration process that involves accessing the deteriorated water distribution line at strategic points within the system and inserting polyethylene pipe lengths, joined into a continuous tube, throughout the existing pipe structure.

10. (a)   is a thermoplastic piping material from the polyolefin group of materials and has low density compared to other thermoplastics and a unique combination of properties, including mechanical strength and thermal stability.

12. A(n) (a)   is a device designed to ensure positive pipe alignment by restricting lateral movement while allowing for movement along the length of the pipe.

13. (a)   water is water under pressure that is heated above 212°F (100°C) without becoming steam.

14. A(n) (a)   is a two-piece pipe clamp used to support vertical runs of steel pipe, plastic pipe, and copper tube.

15. Trench depth should be below the local (a)   .

1. Atmospheric water vapor becomes concentrated in cloud formations and, being heavier than air, falls to the Earth as (a)   .

2. (a)   is the process of removing salt and other minerals from ocean or other saline water.

3. An alternate water source is a nonpotable source of water that includes, but is not limited to, (a)   , black water, gray water, storm water, and rainwater.

4. A(n) (a)   system collects and stores storm water, and it consists of a cistern, pipe, fittings, pumps, and/or other plumbing appurtenances.

5. The (a)   system component of a rainwater catchment system consists of cisterns or tanks, filtering or other treatment systems, pumps, and controls.

6. A privately owned public water system is a public water system that is owned and operated by (a)   .

7. (a)   drilling, also known as percussion or hammer drilling, is the rhythmic raising and lowering of a heavy drill string cable with a bit on the end that breaks up earth material by slightly rotating each time it is lifted and dropped.

8. An impounding reservoir has two functions: impounding surface water for beneficial use and (a)   .

9. (a)   level is the measure of the cloudiness in water and is measured by shining a light through the water.

10. (a)   are the structures used to divert or pump raw water from freshwater sources or impound reservoirs to treatment facilities.

1. The (a)   of the area served is the greatest factor in determining whether pumped pressure is needed to deliver water to each water service.

2. In a combination gravity- and forced-feed system, water is (a)   pumped into the water distribution system.

3. The four basic types of piping networks are the (a)   , radial, grid, and loop piping networks.

4. To offset power use and water demand times, water storage areas should be filled (a)   .

5. Outlet piping with screening should be installed above the floor line to prevent any (a)   that may occur as water is transported out of a tank.

6. The (a)   is the greatest angle above the horizontal plane at which a material will lie without sliding back into the trench.

7. A(n) (a)   is required only when the native trench bottom does not provide a firm working platform for the placement of pipe bedding material.

8. A(n) (a)   -type hydrant is a special-purpose hydrant for use in which firefighting is not the primary purpose of the hydrant.

9. The (a)   is the base of a hydrant, connects to the lower barrel, and contains the main operating valve, drain valve, and connection to the water distribution branch pipe.

10. A(n) (a)   is a device attached to a gate valve that provides a means to operate a buried gate valve and indicates whether the valve is closed or open.