CWEA Exam 2026 Questions and
Answers
Legally responsible officals are required to report catagory 1 sanitary sewer
overflows: - Correct answer-Within two hours
When testing a manhole for explosive gases when should the first test be made? -
Correct answer-Before removing the manhole cover
When setting up to ventilate a manhole,the air inlet should be how many feet above
street level? - Correct answer-2.0 feet
Which chemical may be used for odor control in a sewer system? - Correct answer-
Hydrogen peroxide
A category 2 is: - Correct answer-Any sso which is not a category 1
Which tool would you use for cleaning under a pipe, or hard dirt near a pipe? -
Correct answer-Miner's pick
When pouring a concrete slab, which of the following tools is used to finish the
concrete? - Correct answer-Trowel
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, How can the velocity of water flowing in a sewer be estimated? - Correct answer-
Measuring the time it takes for the dye to be carried by the wastewater between the
two manholes
When a grade conflict exist between a water main and a sewer main, which of the
following is the best solution? - Correct answer-Have the water main adjusted and
hold the grade on the sewer main
A source of infiltration in a collection is: - Correct answer-Broken pipe joints
Pipe materials that are the least susceptible to corrosion by acids formed from
gases generated in a sewer is: - Correct answer-VCP
Liners are installed in sewers to correct problems caused by: - Correct answer-
Infiltration
"Schedule 40" refers to: - Correct answer-Wall thickness
Category 1 SSO is: - Correct answer-A. Any volume reaching a water surface
B. Any volume entering a storm drain and not recovered
C. Any spill greater the a 1000 gallons
D. ALL THE ABOVE
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Answers
Legally responsible officals are required to report catagory 1 sanitary sewer
overflows: - Correct answer-Within two hours
When testing a manhole for explosive gases when should the first test be made? -
Correct answer-Before removing the manhole cover
When setting up to ventilate a manhole,the air inlet should be how many feet above
street level? - Correct answer-2.0 feet
Which chemical may be used for odor control in a sewer system? - Correct answer-
Hydrogen peroxide
A category 2 is: - Correct answer-Any sso which is not a category 1
Which tool would you use for cleaning under a pipe, or hard dirt near a pipe? -
Correct answer-Miner's pick
When pouring a concrete slab, which of the following tools is used to finish the
concrete? - Correct answer-Trowel
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, How can the velocity of water flowing in a sewer be estimated? - Correct answer-
Measuring the time it takes for the dye to be carried by the wastewater between the
two manholes
When a grade conflict exist between a water main and a sewer main, which of the
following is the best solution? - Correct answer-Have the water main adjusted and
hold the grade on the sewer main
A source of infiltration in a collection is: - Correct answer-Broken pipe joints
Pipe materials that are the least susceptible to corrosion by acids formed from
gases generated in a sewer is: - Correct answer-VCP
Liners are installed in sewers to correct problems caused by: - Correct answer-
Infiltration
"Schedule 40" refers to: - Correct answer-Wall thickness
Category 1 SSO is: - Correct answer-A. Any volume reaching a water surface
B. Any volume entering a storm drain and not recovered
C. Any spill greater the a 1000 gallons
D. ALL THE ABOVE
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
