CWEA Collection Systems Maintenance –
Comprehensive Study Guide & Practice Resource
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When developing an S.O.P. for scheduled maintenance of electrical equipment,
what program should be addressed as a primary safety guideline? SELECTED
ANSWER 👀 The L.O.T.O Program
What does L.O.T.O. Stand for? SELECTED ANSWER 👀 Lock out tag out
What document would you require to be referenced when developing an S.O.p.
for hazardous substace spill clean up? SELECTED ANSWER 👀 M.S.D.S.
in developing an S.O.P. for air monitoring in a Permit Required Confined Space
you would include what two factors? SELECTED ANSWER 👀 Placement of
the blower and a weather forecast
According to the State Water Resources Control Board Order No. 2006-003-
DWQ, each enrollee must develop and implement a system-specific:
SELECTED ANSWER 👀 SSMP (Sewer System Management Plan)
How long do you have to report a category 1 SSO? SELECTED ANSWER 👀
2 hours
,To report in the Statewide SSO Data-base California Integrated Water Quality
System (CIWQS) regarding the location of a Category 2 SSO, how must you
report the location? SELECTED ANSWER 👀 Using the GPS coordinates
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause:
SELECTED ANSWER 👀 odors
Flatter sewer line grades may cause added sewer maintenance expense and
odor nuisance. This is caused by what? SELECTED ANSWER 👀 A decrease
in velocity which allows organic and inorganic solids to settle out. This, in turn,
allows biological activity to happen which corrodes the pipe and releases
hydrogen sulfide (H2S) which smells like rotten eggs
Clear water in entering a collection system is called what? SELECTED
ANSWER 👀 infiltration
Infiltration can occur in a pipe when the pipe is: SELECTED ANSWER 👀
cracked, broken, fractures, has roots coming into it etc.
The main reason we add sodium hypochlorite to sewers is to control:
SELECTED ANSWER 👀 BOD
Roots can enter collection systems through: SELECTED ANSWER 👀 cracked
pipes, broken pipes, fractured pipes
, The lowest point on the inside of a pipe is called what? SELECTED ANSWER
👀 the invert
The very top of the outside of a pipe is called what? SELECTED ANSWER 👀
The crown
How often must an excavation site and adjacent areas be inspected for
hazardous conditions? SELECTED ANSWER 👀 Daily
protective shoring systems options include: SELECTED ANSWER 👀 proper
shoring or benching of the sides of the excavation, supporting the sides of a
tench with shoring using a shield in an excavation area.
Proper operation and maintenance of wastewater collection is defined as:
SELECTED ANSWER 👀 keeping wastewater flowing through pipes
What is minimum design velocity for a sewer? SELECTED ANSWER 👀 a
minimum of two feet per second
Vitrified clay pipe is what type of pipe? SELECTED ANSWER 👀 Rigid
What is another name for a manhole? SELECTED ANSWER 👀 Maintenance
hole
Comprehensive Study Guide & Practice Resource
| Verified Questions And Answers | Instant Pdf
Download
When developing an S.O.P. for scheduled maintenance of electrical equipment,
what program should be addressed as a primary safety guideline? SELECTED
ANSWER 👀 The L.O.T.O Program
What does L.O.T.O. Stand for? SELECTED ANSWER 👀 Lock out tag out
What document would you require to be referenced when developing an S.O.p.
for hazardous substace spill clean up? SELECTED ANSWER 👀 M.S.D.S.
in developing an S.O.P. for air monitoring in a Permit Required Confined Space
you would include what two factors? SELECTED ANSWER 👀 Placement of
the blower and a weather forecast
According to the State Water Resources Control Board Order No. 2006-003-
DWQ, each enrollee must develop and implement a system-specific:
SELECTED ANSWER 👀 SSMP (Sewer System Management Plan)
How long do you have to report a category 1 SSO? SELECTED ANSWER 👀
2 hours
,To report in the Statewide SSO Data-base California Integrated Water Quality
System (CIWQS) regarding the location of a Category 2 SSO, how must you
report the location? SELECTED ANSWER 👀 Using the GPS coordinates
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause:
SELECTED ANSWER 👀 odors
Flatter sewer line grades may cause added sewer maintenance expense and
odor nuisance. This is caused by what? SELECTED ANSWER 👀 A decrease
in velocity which allows organic and inorganic solids to settle out. This, in turn,
allows biological activity to happen which corrodes the pipe and releases
hydrogen sulfide (H2S) which smells like rotten eggs
Clear water in entering a collection system is called what? SELECTED
ANSWER 👀 infiltration
Infiltration can occur in a pipe when the pipe is: SELECTED ANSWER 👀
cracked, broken, fractures, has roots coming into it etc.
The main reason we add sodium hypochlorite to sewers is to control:
SELECTED ANSWER 👀 BOD
Roots can enter collection systems through: SELECTED ANSWER 👀 cracked
pipes, broken pipes, fractured pipes
, The lowest point on the inside of a pipe is called what? SELECTED ANSWER
👀 the invert
The very top of the outside of a pipe is called what? SELECTED ANSWER 👀
The crown
How often must an excavation site and adjacent areas be inspected for
hazardous conditions? SELECTED ANSWER 👀 Daily
protective shoring systems options include: SELECTED ANSWER 👀 proper
shoring or benching of the sides of the excavation, supporting the sides of a
tench with shoring using a shield in an excavation area.
Proper operation and maintenance of wastewater collection is defined as:
SELECTED ANSWER 👀 keeping wastewater flowing through pipes
What is minimum design velocity for a sewer? SELECTED ANSWER 👀 a
minimum of two feet per second
Vitrified clay pipe is what type of pipe? SELECTED ANSWER 👀 Rigid
What is another name for a manhole? SELECTED ANSWER 👀 Maintenance
hole
