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CWEA Collection Systems Maintenance Updated (2026/2027) Questions with Detailed Verified Answers

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This document contains questions and verified answers for CWEA Collection Systems Maintenance . It includes detailed explanations, revision-focused content, and exam preparation material suitable for 2026/2027 students.

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CWEA Collection Systems
Maintenance

"High priority subsurface installations ae excessive strain herbal fuel pipelines with ordinary
running pressures more than 415 kPa gauge, petroleum pipelines, conductors or cables which
are doubtlessly dangerous to personnel, or the general public, if damaged." This paragraph
shows that earlier than the begin date of an excavation, what should arise? - ANS-An agreed
upon site go to

550 gallons of sewage overflow and do not reach any floor waters. What class of overflow is
this? - ANS-Category 3

A go with the flow of 650 pgm might be what number of mgd? - ANS-zero.936

A risk that can harm a TV digital camera going through a sewer is: - ANS-an offset joint

A man or woman who completes a schooling software in accordance with the necessities of
Title eight, Calif. Code of Regulations, Minimum Guidelines of the Common Ground Alliance is
considered a ______________ individual - ANS-Qualified Person

According to the State Water Resources Control Board Order No. 2006-003-DWQ, each
enrollee have to expand and implement a device-specific: - ANS-SSMP (Sewer System
Management Plan)

After finishing a Temporary Traffic Control setup on your work area it is a superb practice to: -
ANS-Observe how powerful your TTC setup is operating to govern site visitors and make the
essential changes

Based on new Best Practices of the Common Ground Alliance for marking underground Utilities,
the Inquiry Identification Number for an Underground Service Alert (USA) is possible for what
number of days? - ANS-28 days

Before beginning a protection operation in a basement located in the backyard of a residence
you ought to: - ANS-contact the resident and courteously ask permission to go into their
backyard

Biological interest in lengthy, slow-float, flat grade sewer traces will likely motive: - ANS-odors

Clear water in coming into a set gadget is referred to as what? - ANS-infiltration

, emergency stoppages in pipelines can be cleared correctly by use of: - ANS-excessive pace
cleaners

Flatter sewer line grades may additionally motive added sewer preservation rate and smell
nuisance. This is due to what? - ANS-A decrease in speed which permits organic and inorganic
solids to settle out. This, in flip, permits organic activity to take place which corrodes the pipe
and releases hydrogen sulfide (H2S) which smells like rotten eggs

For a midnight Short Term Stationary Traffic Control Zone setup on low pace/ low quantity
avenue, the minimal top of the visitors cones used will be ________ - ANS-28 inches

How can the participants of a balling group communicate with each other? - ANS-Hand Signals

How high do your site visitors cones want to be if the rate limit round your paintings sector is 35
MPH? - ANS-18". Cone height must be 18" if velocity restriction is 30 MPH or less and 28" if the
velocity limit is 45 MPH or more

How lengthy do you have to report a category 1 SSO? - ANS-2 hours

How lengthy do you have to report a class 2 or 3 SSO? - ANS-3 days

what number of flaggers are REQUIRED to carry out a fundamental flagging operation? -
ANS-one

How many types of not unusual shoring are there? - ANS-6

How often must an excavation site and adjoining regions be inspected for dangerous
conditions? - ANS-Daily

in growing an S.O.P. For air tracking in a Permit Required Confined Space you would consist of
what factors? - ANS-Placement of the blower and a weather forecast

Infiltration can arise in a pipe when the pipe is: - ANS-cracked, damaged, fractures, has roots
entering it etc.

Maintenance programs are based on: - ANS-Preventative and corrective upkeep concepts

Name and describe the 3 soil kinds - ANS-Type A: cohesive soils like clay
Type B: Cohesive soil that have been disturbed or angular gravel
Type C: Granular Soils like sand. These are the least strong

Once enrolled in CIWQS, the "Collection System Questionnaire" have to be up to date as a
minimum each: - ANS-12 Months

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