CWEA COLLECTIONS SYSTEM MAINTENANCE GRADE 3 EXAM LATEST
2026 UPDATED QUESTIONS AND VERIFIED 100% SOLUTIONS
(2026/2027) GRADE: A+|STATUS: GUARANTEED PASS
A kilowatt is the equivalent of:
a. 0.67 amperes at a voltage of 120.
b. 1.34 horsepower.
c. 746 watts.
d. 1,000 megacycles. - Answers -b. 1.34 horsepower.
What factors should be considered when providing trench shoring?
a. Grade of sewer.
b. Pipe material.
c. Structures or sources of vibration near trenches.
d. Cost of shoring. - Answers -c. Structures or sources of vibration near trenches.
When sewer line grades are too flat, an odor problem is likely to result. The most likely cause of
the odor problem is decreased velocity which:
a. allows decomposable solids to settle.
b. decreases the treatment time in the lines.
c. increases the treatment time of inorganic solids.
d. allow decomposable solids to be suspended. - Answers -a. allows decomposable solids to
settle.
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,After a collection system problem has been solved, you should:
a. wait until next week to fill out the report forms.
b. take a break.
c. go home.
d. evaluate the effectiveness of the results. - Answers -d. evaluate the effectiveness of the
results.
Improper connections can be detected through:
a. DO tests.
b. soundings.
c. TV inspection.
d. radar. - Answers -c. TV inspection.
Which of these pH readings indicates an acidic wastewater?
a. 3
b. 12
c. 7
d. 9 - Answers -
The record log of hydraulic cleaning operation should include:
a. type and amount of material removed from downstream manhole. b. feet of rod used.
c. camera malfunctions.
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, d. feet of cable used. - Answers -
To test for pipe deflection and joint offset, you would conduct which of the following tests?
a. Smoke.
b. Air.
c. Mandrill.
d. Water. - Answers -
While the CCTC is being pulled through the line, the:
a. camera must never stop.
b. camera should be forced through any obstruction.
c. operator must never stop looking at the monitor.
d. operator must never use a tag line. - Answers -
If the camera becomes wedged during a video inspection, which of the following would be your
first step in solving the problem?
a. Dig up the area where the camera is wedged.
b. Attempt to free the camera with the tag line.
c. Attach pull cable to a backhoe and pull is out.
d. Wait awhile to see if it will free itself. - Answers -
A Category 1 SSO is:
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2026 UPDATED QUESTIONS AND VERIFIED 100% SOLUTIONS
(2026/2027) GRADE: A+|STATUS: GUARANTEED PASS
A kilowatt is the equivalent of:
a. 0.67 amperes at a voltage of 120.
b. 1.34 horsepower.
c. 746 watts.
d. 1,000 megacycles. - Answers -b. 1.34 horsepower.
What factors should be considered when providing trench shoring?
a. Grade of sewer.
b. Pipe material.
c. Structures or sources of vibration near trenches.
d. Cost of shoring. - Answers -c. Structures or sources of vibration near trenches.
When sewer line grades are too flat, an odor problem is likely to result. The most likely cause of
the odor problem is decreased velocity which:
a. allows decomposable solids to settle.
b. decreases the treatment time in the lines.
c. increases the treatment time of inorganic solids.
d. allow decomposable solids to be suspended. - Answers -a. allows decomposable solids to
settle.
1|Page
,After a collection system problem has been solved, you should:
a. wait until next week to fill out the report forms.
b. take a break.
c. go home.
d. evaluate the effectiveness of the results. - Answers -d. evaluate the effectiveness of the
results.
Improper connections can be detected through:
a. DO tests.
b. soundings.
c. TV inspection.
d. radar. - Answers -c. TV inspection.
Which of these pH readings indicates an acidic wastewater?
a. 3
b. 12
c. 7
d. 9 - Answers -
The record log of hydraulic cleaning operation should include:
a. type and amount of material removed from downstream manhole. b. feet of rod used.
c. camera malfunctions.
2|Page
, d. feet of cable used. - Answers -
To test for pipe deflection and joint offset, you would conduct which of the following tests?
a. Smoke.
b. Air.
c. Mandrill.
d. Water. - Answers -
While the CCTC is being pulled through the line, the:
a. camera must never stop.
b. camera should be forced through any obstruction.
c. operator must never stop looking at the monitor.
d. operator must never use a tag line. - Answers -
If the camera becomes wedged during a video inspection, which of the following would be your
first step in solving the problem?
a. Dig up the area where the camera is wedged.
b. Attempt to free the camera with the tag line.
c. Attach pull cable to a backhoe and pull is out.
d. Wait awhile to see if it will free itself. - Answers -
A Category 1 SSO is:
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