CWEA Collection Systems Maintenance Certification Exam Study
Guide & Practice Questions | 2025
1. Why are gasoline and volatile sol- They produce an explosion hazard
vents objectionable when present in
a sewer?
2. You should never attempt to install, You know what you are doing, are qualified and are
maintain, repair or replace electrical authorized
equipment panels, controls, wiring
or circuits unless
3. What are the different areas of traffic Advance Warning Area, Transition Area, Activity Area
zones? (butter space and work space), Termination Area.
Could be 4 or 5, justify your answer on the test!
4. why should hydrogen sulfide be con- to protect from corrosion and odors
trolled?
5. Personnel entering a Permit Re- entry and rescue
quired Confined Space must have the
following training
6. To find protective gear before appli- look at the MSDS
cation of a product, you should:
7. The gas most commonly associated Hydrogen Sulfide
with septic wastewater is
8. The lack of an unpleasant odor in a some dangerous gasses are odorless (for example,
manhole, lift station or other struc- carbon monoxide)
tures does not always mean that dan-
gerous gases are not present be-
cause:
9.
, CWEA Collection Systems Maintenance Certification Exam Study
Guide & Practice Questions | 2025
What are the four conditions neces- combustible gas, adequate oxygen, heat and prop-
sary to create an explosion? er mixing of gas and oxygen
10. what does the "transition area" mean It moves traflc out of its normal path
in traffic control?
11. what elements should be consid- Rerouting traflc around the work site, positioning
ered to improve worker safety in of law enforcement oflcers in the temporary traflc
High speed Temporary Traffic control control zone, and work zone training
Zones?
12. What key features would you need Traflc Control Plan, By-Pass connections, and Spill
to address when developing an S.O.P. containment
for a Lift Station failure?
13. What tools are used with a power Spring Blades
rodder?
14. Tools used for sewer rodding include: porcupine, root saw, square bar cork screw
15. What tool would you use to cut VCP Chain Pipe Cutter
pipe?
16. Which conditions should a gas detec- Hydrogen sulfide, explosive/flammable gases, oxy-
tion device test for? gen
17. What does "LEL" mean on a gas de- Lower Explosive Limit
tection meter?
18. The oxygen level alarm normally 19. 5 percent
goes off if oxygen levels are below:
19. When developing an S.O.P. for sched- The L.O.T.O Program
uled maintenance of electrical equip-
, CWEA Collection Systems Maintenance
Study online at https://quizlet.com/_7vfedn
ment, what program should be ad-
dressed as a primary safety guide-
line?
20. What does L.O.T.O. Stand for? Lock out tag out
21. What document would you require M.S.D.S.
to be referenced when developing
an S.O.p. for hazardous substace spill
clean up?
22. in developing an S.O.P. for air moni- Placement of the blower and a weather forecast
toring in a Permit Required Confined
Space you would include what two
factors?
23. According to the State Water Re- SSMP (Sewer System Management Plan)
sources Control Board Order No.
2006-003-DWQ, each enrollee must
develop and implement a sys-
tem-specific:
24. How long do you have to report a 2 hours
category 1 SSO?
25. To report in the Statewide SSO Using the GPS coordinates
Data-base California Integrated Wa-
ter Quality System (CIWQS) regard-
ing the location of a Category 2 SSO,
how must you report the location?
26. odors
Guide & Practice Questions | 2025
1. Why are gasoline and volatile sol- They produce an explosion hazard
vents objectionable when present in
a sewer?
2. You should never attempt to install, You know what you are doing, are qualified and are
maintain, repair or replace electrical authorized
equipment panels, controls, wiring
or circuits unless
3. What are the different areas of traffic Advance Warning Area, Transition Area, Activity Area
zones? (butter space and work space), Termination Area.
Could be 4 or 5, justify your answer on the test!
4. why should hydrogen sulfide be con- to protect from corrosion and odors
trolled?
5. Personnel entering a Permit Re- entry and rescue
quired Confined Space must have the
following training
6. To find protective gear before appli- look at the MSDS
cation of a product, you should:
7. The gas most commonly associated Hydrogen Sulfide
with septic wastewater is
8. The lack of an unpleasant odor in a some dangerous gasses are odorless (for example,
manhole, lift station or other struc- carbon monoxide)
tures does not always mean that dan-
gerous gases are not present be-
cause:
9.
, CWEA Collection Systems Maintenance Certification Exam Study
Guide & Practice Questions | 2025
What are the four conditions neces- combustible gas, adequate oxygen, heat and prop-
sary to create an explosion? er mixing of gas and oxygen
10. what does the "transition area" mean It moves traflc out of its normal path
in traffic control?
11. what elements should be consid- Rerouting traflc around the work site, positioning
ered to improve worker safety in of law enforcement oflcers in the temporary traflc
High speed Temporary Traffic control control zone, and work zone training
Zones?
12. What key features would you need Traflc Control Plan, By-Pass connections, and Spill
to address when developing an S.O.P. containment
for a Lift Station failure?
13. What tools are used with a power Spring Blades
rodder?
14. Tools used for sewer rodding include: porcupine, root saw, square bar cork screw
15. What tool would you use to cut VCP Chain Pipe Cutter
pipe?
16. Which conditions should a gas detec- Hydrogen sulfide, explosive/flammable gases, oxy-
tion device test for? gen
17. What does "LEL" mean on a gas de- Lower Explosive Limit
tection meter?
18. The oxygen level alarm normally 19. 5 percent
goes off if oxygen levels are below:
19. When developing an S.O.P. for sched- The L.O.T.O Program
uled maintenance of electrical equip-
, CWEA Collection Systems Maintenance
Study online at https://quizlet.com/_7vfedn
ment, what program should be ad-
dressed as a primary safety guide-
line?
20. What does L.O.T.O. Stand for? Lock out tag out
21. What document would you require M.S.D.S.
to be referenced when developing
an S.O.p. for hazardous substace spill
clean up?
22. in developing an S.O.P. for air moni- Placement of the blower and a weather forecast
toring in a Permit Required Confined
Space you would include what two
factors?
23. According to the State Water Re- SSMP (Sewer System Management Plan)
sources Control Board Order No.
2006-003-DWQ, each enrollee must
develop and implement a sys-
tem-specific:
24. How long do you have to report a 2 hours
category 1 SSO?
25. To report in the Statewide SSO Using the GPS coordinates
Data-base California Integrated Wa-
ter Quality System (CIWQS) regard-
ing the location of a Category 2 SSO,
how must you report the location?
26. odors
