CWEA Collections System Maintenance Grade 3
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Questions And CORRECT 100% SOLUTIONs
Graded A+ Latest 2026 | Instant Pdf Download
Which of the following is the most common factor leading to the generation
of hydrogen sulfide in sewers?
a. Anaerobic conditions.
b. Constantly high velocity of flow in sewers.
c. Low concentrations of ferrous sulfide.
d. Presence of highly soluble fats and oils. SELECTED CORRECT 100%
SOLUTION 👀 a. Anaerobic
conditions.
A category 2 SSO is:
a. any SSO which does not reach surface waters.
b. not reportable.
c. preventable.
d. any SSO which is not category 1. SELECTED CORRECT 100%
SOLUTION 👀 d. any SSO which is not category 1.
Which tool would you use for cleaning under a pipe, or hard dirt
near a pipe? a. Miner's pick.
b. Wrench.
c. Drill.
d. Hammer. SELECTED CORRECT 100% SOLUTION 👀 a. Miner's pick.
,A torque wrench is used to tighten which device?
a. Pipe clamp.
b. Drill chuck.
c. Light bulb.
d. Sheet metal screw SELECTED CORRECT 100% SOLUTION 👀 a.
Pipe clamp.
Which unit uses high water pressure and a vacuum to clean
sewer lines?
a. Jetter
b. Mechanical rodder
c. Combination unit
d. Bucket machine SELECTED CORRECT 100% SOLUTION 👀 c.
Combination unit
In sewer maintenance, what is a pig?
a. A ball forced through a sewer line.
b. A power rod.
c. Any foul smelling equipment.
d. The hydraulic rodding truck. SELECTED CORRECT 100% SOLUTION
👀 a. A ball forced through a sewer line.
When pouring a concrete slab, which of the following tools is used to finish
the concrete? a. Grasshopper.
b. Tamper.
, c. Trowel.
d. Vibrator. SELECTED CORRECT 100% SOLUTION 👀 c. Trowel.
What tool is used to snare a broken section of sewer rod?
a. Square stock corkscrew.
b. Auger.
c. Pickup tool.
d. Pull out tool. SELECTED CORRECT 100% SOLUTION 👀 c. Pickup
tool.
Why is the replacement of wastewater collection systems in some
downtown streets difficult?
a. Crowding of other underground utilities.
b. Records have not been maintained properly and the collection system is
lost.
c. Some people have landscaped their backyards over the collection
system and do not want their yards dug up.
d. The streets will have to be paved again SELECTED CORRECT 100%
SOLUTION 👀 a. Crowding of other underground utilities.
How can the velocity of water flowing in a sewer be estimated?
a. Driving between manholes and reading the speedometer.
b. Measuring the Manning's roughness coefficient for the sewer.
c. Measuring the time it takes for the dye to be carried by the wastewater
between the two manholes.
d. Measuring the time it takes to run between the two manholes.
SELECTED CORRECT 100% SOLUTION 👀
|
Questions And CORRECT 100% SOLUTIONs
Graded A+ Latest 2026 | Instant Pdf Download
Which of the following is the most common factor leading to the generation
of hydrogen sulfide in sewers?
a. Anaerobic conditions.
b. Constantly high velocity of flow in sewers.
c. Low concentrations of ferrous sulfide.
d. Presence of highly soluble fats and oils. SELECTED CORRECT 100%
SOLUTION 👀 a. Anaerobic
conditions.
A category 2 SSO is:
a. any SSO which does not reach surface waters.
b. not reportable.
c. preventable.
d. any SSO which is not category 1. SELECTED CORRECT 100%
SOLUTION 👀 d. any SSO which is not category 1.
Which tool would you use for cleaning under a pipe, or hard dirt
near a pipe? a. Miner's pick.
b. Wrench.
c. Drill.
d. Hammer. SELECTED CORRECT 100% SOLUTION 👀 a. Miner's pick.
,A torque wrench is used to tighten which device?
a. Pipe clamp.
b. Drill chuck.
c. Light bulb.
d. Sheet metal screw SELECTED CORRECT 100% SOLUTION 👀 a.
Pipe clamp.
Which unit uses high water pressure and a vacuum to clean
sewer lines?
a. Jetter
b. Mechanical rodder
c. Combination unit
d. Bucket machine SELECTED CORRECT 100% SOLUTION 👀 c.
Combination unit
In sewer maintenance, what is a pig?
a. A ball forced through a sewer line.
b. A power rod.
c. Any foul smelling equipment.
d. The hydraulic rodding truck. SELECTED CORRECT 100% SOLUTION
👀 a. A ball forced through a sewer line.
When pouring a concrete slab, which of the following tools is used to finish
the concrete? a. Grasshopper.
b. Tamper.
, c. Trowel.
d. Vibrator. SELECTED CORRECT 100% SOLUTION 👀 c. Trowel.
What tool is used to snare a broken section of sewer rod?
a. Square stock corkscrew.
b. Auger.
c. Pickup tool.
d. Pull out tool. SELECTED CORRECT 100% SOLUTION 👀 c. Pickup
tool.
Why is the replacement of wastewater collection systems in some
downtown streets difficult?
a. Crowding of other underground utilities.
b. Records have not been maintained properly and the collection system is
lost.
c. Some people have landscaped their backyards over the collection
system and do not want their yards dug up.
d. The streets will have to be paved again SELECTED CORRECT 100%
SOLUTION 👀 a. Crowding of other underground utilities.
How can the velocity of water flowing in a sewer be estimated?
a. Driving between manholes and reading the speedometer.
b. Measuring the Manning's roughness coefficient for the sewer.
c. Measuring the time it takes for the dye to be carried by the wastewater
between the two manholes.
d. Measuring the time it takes to run between the two manholes.
SELECTED CORRECT 100% SOLUTION 👀
