Water distribution level 3
Study online at https://quizlet.com/_hqhis2
1. A factor or value used to Cfactor
indicate the smoothness of
the interior of a pipe
2. Major parts of water distrib- Pipes, storage facilities, pumping stations, valves ,fire hydrants,
ution meters, and other appurtenances
3. Main purpose of water stor- To provide sufficient amount of water to average or equalize the
age facilities daily demands on the water supply system
4. Types of storage facilities Clear wells, elevated tanks,standpipes,ground level storage tanks ,
hydro pneumatic or pressure tanks, and surge tanks
5. 20 psi Absolute minimum pressure
6. 35 psi Minimum working pressure
7. Basic requirements of pipes Adequate strength, durability,maximum corrosion, resistance and
no adverse effect on water quality
8. Four classes of working 100,150,200,250 psi
pressure are commonly en-
countered
9. Push on and mechanical Ductile iron pipe. Flanges, restrained, flexible, and sleeve joints are
joints are most often used also used
for
10. Flange joints Not flexible
11. Restrained joints Prevent movement
12. Flexible joints Permits one joint to move
13. PE pipe Has the highest cfactors 150
1/7
, Water distribution level 3
Study online at https://quizlet.com/_hqhis2
14. Pipe protection Paint
15. Rock must be excavated 6inches
16. Ladder must b located 25 ft and 3ft above hole
17. Laying pipe is also called Stringing
18. The horizontal shoring Stringers or walers
members are generally re-
ferred to as
19. Shield shoring Consists of a rectangular box that must b open on the top and
bottom and usually the ends are open too
20. Solid sheeting Used when materials will not stand in a vertical position or not
practical to slope the trench
21. Types of valves Plug, rotary,butterfly, diaphragm, gate
22. Entrained Air to escape a line is operating under pressure
23. 4 parts to a hydrant Inlet pipe connection from the water supply main,the main
valve,the barrel,the head
24. Post hydrants Extend above ground most commonly used
25. Rule of thumb Meter should b one size smaller that service line
26. 3basic backflow devices Double check valve, reduced pressure(rp),air gap-provides great-
est protection
27. The source of supply might Well
ba
2/7
Study online at https://quizlet.com/_hqhis2
1. A factor or value used to Cfactor
indicate the smoothness of
the interior of a pipe
2. Major parts of water distrib- Pipes, storage facilities, pumping stations, valves ,fire hydrants,
ution meters, and other appurtenances
3. Main purpose of water stor- To provide sufficient amount of water to average or equalize the
age facilities daily demands on the water supply system
4. Types of storage facilities Clear wells, elevated tanks,standpipes,ground level storage tanks ,
hydro pneumatic or pressure tanks, and surge tanks
5. 20 psi Absolute minimum pressure
6. 35 psi Minimum working pressure
7. Basic requirements of pipes Adequate strength, durability,maximum corrosion, resistance and
no adverse effect on water quality
8. Four classes of working 100,150,200,250 psi
pressure are commonly en-
countered
9. Push on and mechanical Ductile iron pipe. Flanges, restrained, flexible, and sleeve joints are
joints are most often used also used
for
10. Flange joints Not flexible
11. Restrained joints Prevent movement
12. Flexible joints Permits one joint to move
13. PE pipe Has the highest cfactors 150
1/7
, Water distribution level 3
Study online at https://quizlet.com/_hqhis2
14. Pipe protection Paint
15. Rock must be excavated 6inches
16. Ladder must b located 25 ft and 3ft above hole
17. Laying pipe is also called Stringing
18. The horizontal shoring Stringers or walers
members are generally re-
ferred to as
19. Shield shoring Consists of a rectangular box that must b open on the top and
bottom and usually the ends are open too
20. Solid sheeting Used when materials will not stand in a vertical position or not
practical to slope the trench
21. Types of valves Plug, rotary,butterfly, diaphragm, gate
22. Entrained Air to escape a line is operating under pressure
23. 4 parts to a hydrant Inlet pipe connection from the water supply main,the main
valve,the barrel,the head
24. Post hydrants Extend above ground most commonly used
25. Rule of thumb Meter should b one size smaller that service line
26. 3basic backflow devices Double check valve, reduced pressure(rp),air gap-provides great-
est protection
27. The source of supply might Well
ba
2/7
