Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
44 Cards in this Set
- Front
- Back
|
1. I & I causes hydraulic overload on wastewater lines, lift stations and the wastewater |
a. true I & I, (Inflow & Infiltration) causes hydraulic overload to wastewater lines, lift stations, and treatment plants. |
|
|
|
a. true |
|
|
|
a. true and can be caused by:
* poor design * wasterwater line deterioration *Cracked Pipe or improper taps *Illegal connections |
|
|
4. Some illegal connections are rain gutter downspouts, yard drains and storm sewer taps. |
a. true |
|
|
5. When televising, the pipe is cleaned, then a camera is pulled through the line and the interior |
a. true
Televising a form of S.S.E.S. (Sewer System Eval Survey) |
|
|
6. Smoke testing indicates infiltration and illegal connections to the system. |
a. true |
|
|
7. Notify the public by radio or television prior to smoke testing. |
a. true
|
|
|
8. Do not smoke test on a windy or rainy day. |
a. true
|
|
|
9. Record smoke coming from the ground, houses or buildings and include landmarks in |
a. true |
|
|
10. About 15% of emergency repairs are eliminated by cleaning collection lines. |
b. false
Its 85% of emergency repairs. |
|
|
11. The primary cause of collection line stops is poor construction, age or corrosion, public |
b. false
The primary causes of collection line stops are: Roots and Grease Public Misuse Poor Design Defective Meaterials |
|
|
12. The best way to control grease is to collect it at the treatment plant. |
b. false
The best way to control grease is to collect it at the source. |
|
|
13. Rodders push, pull or rotate end-attachments to loosen debris, cut roots or break up grease. |
a. true |
|
|
14. A fishing pole removes the rod line should it break or disconnect. |
b. false
A rod Pickup tool fishes out the rod line, should it break or disconnect. |
|
|
15. Operate hydraulic jets carefully to prevent water from entering wastewater lines or |
b. false
Operate hydraulic jets carefully to prevent water from entering Homes or Business |
|
|
16. Sewer balls (or sewer pigs), kites, bags and shielded scooters are hydraulic cleaning |
a. true |
|
|
17. Chemicals and microorganisms control roots, grease and other material causing odor or |
a. true
|
|
|
18. A collection system map should show wastewater lines, taps, flow direction and manholes. |
a. true |
|
|
19. Maps can follow engineering plans, but they should be based on the “as bid” drawings. |
b. false
Maps can follow engineering plans, but they should be based on the “as built” drawings. |
|
|
20. Collection system problems are caused by public misuse, poor design or construction, or |
a. true
|
|
|
21. Good construction inspection prevents poor construction and faulty material. |
a. true
|
|
|
22. Inadequate bedding, earth movement, foreign material in the bedding and improper pipe |
b. false
Excessive loading on a pipe causes it to become out of round, can cause the pipe to have Horizontal Breaks
Inadequate bedding, earth movement, foreign material in the bedding and improper pipe |
|
|
23. Excessive loading on a pipe causes it to become out of round. |
a. true
|
|
|
24. Traffic and flow velocity cause horizontal pipe failure. |
b. false
It's Traffic Heavy Equipment Damage Excessive Trench Depth & Improper Pipe that can cause horizontal breaks.
|
|
|
25. When making repairs, if the soil was disturbed when an original trench was dug, it is more |
b. cave in
A better way to say this is... Because the soil was disturbed when an original trench was dug... |
|
|
26. Slope, shore or ________ the trench. |
d. shield
|
|
|
27. The backhoe operator should keep the motor running and be ready to ________. |
b. assist the worker in the trench
|
|
|
28. The main concern of the collection system worker is ________. |
b. protecting public health
|
|
|
29. If a line cannot be readily repaired or cleared, make a temporary repair or reroute the |
a. upstream manhole to a downstream manhole |
|
|
30. If a repair is not completed on a weekend or at night, ________ the job, notify the ________ |
c. barricade/police/monitor
|
|
|
31. ________ a new pipe section with water helps to ________ it. |
d. Flooding/stabilize
|
|
|
32. ________ is the best repair method for multiple joint leaks with minimum service |
c. Internal grouting
|
|
|
33. ________ involves pulling rigid, plastic pipe through the deteriorated pipe. |
c. Slip-lining
|
|
|
34. ________ method uses a thermoplastic resin liner principal. |
b. Fold and form |
|
|
35. The ________ repair method uses a PVC liner folded and pulled through the old pipe, then |
d. fold and form
|
|
|
36. New ________ manholes are not allowed by the TCEQ. |
c. brick
|
|
|
37. Two types of pre-cast concrete manholes are ________ joint and ________ joint. |
b. tongue-and-grove/o-ring
|
|
|
38. Because steps in manholes corrode, use a ________ for access. |
b. ladder |
|
|
39. Because manholes vent wastewater gasses, they should not have a __________ seal. a. watertight b. temporary c. breakable d. airtight |
d. airtight |
|
|
40. Manhole ventilation equipment must provide at least_____ air changes per _________ under continuous operation. a. three / minute b. three / hours c. six / hour d. six /day |
c. six / hour |
|
|
41. Vehicle exhaust fumes must not contaminate air blown into the ________. |
c. manhole
|
|
|
42. Equipment carried on vehicles varies with work assignments, but ________ should be |
d. all listed
|
|
|
43. Traffic control devices must meet specifications of the ________ Manual on Uniform |
b. Texas The Texas Manual on Uniform (T.M.U.T.C.D)
|
|
|
44. Collection system operators should have access to ________. |
d. all listed |
