CWEA QUESTIONS AND ANSWERS
WITH SOLUTIONS 2024
Legally responsible officals are required to report catagory 1 sanitary sewer overflows: - ANSWER Within
two hours
When testing a manhole for explosive gases when should the first test be made? - ANSWER Before
removing the manhole cover
When setting up to ventilate a manhole,the air inlet should be how many feet above street level? -
ANSWER 2.0 feet
Which chemical may be used for odor control in a sewer system? - ANSWER Hydrogen peroxide
A category 2 is: - 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? - ANSWER Miner's pick
When pouring a concrete slab, which of the following tools is used to finish the concrete? - ANSWER
Trowel
How can the velocity of water flowing in a sewer be estimated? - 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? - ANSWER Have the water main adjusted and hold the grade on the sewer main
A source of infiltration in a collection is: - ANSWER Broken pipe joints
Pipe materials that are the least susceptible to corrosion by acids formed from gases generated in a
sewer is: - ANSWER VCP
, Liners are installed in sewers to correct problems caused by: - ANSWER Infiltration
"Schedule 40" refers to: - ANSWER Wall thickness
Category 1 SSO is: - 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
In a 25 MPH zone, Distance of Flagger Station in the Advanced of a Work Space should be: - ANSWER 155
feet
What is a flow rate - ANSWER Q = AV
Flow = Area x Velocity
Responsibilities - ANSWER Those duties one is held accountable for.
Responsibility - ANSWER Duty or obligation to perform a prescribed task or service or attain an object.
Theory X - ANSWER Negative approach to human relations in which a supervisor presumes most people
don't like to work and thus need to be pushed or threatened.
Theory Y - ANSWER Positive approach to human relations whereby a supervisor presumes that given,
meaningful work, most people will try hard to achieve, especially when there is an opportunity to
improve their self-regard.
Warning - ANSWER A reprimand so worded as to give formal notice to an employee that repetition of a
particular form of unacceptable behavior will draw a penalty.
Injury Illness Prevention Program - ANSWER Plan required by California Senate Bill SB 198 to establish,
implement, and maintain an effective program helping assure employee safety while on the job. It
WITH SOLUTIONS 2024
Legally responsible officals are required to report catagory 1 sanitary sewer overflows: - ANSWER Within
two hours
When testing a manhole for explosive gases when should the first test be made? - ANSWER Before
removing the manhole cover
When setting up to ventilate a manhole,the air inlet should be how many feet above street level? -
ANSWER 2.0 feet
Which chemical may be used for odor control in a sewer system? - ANSWER Hydrogen peroxide
A category 2 is: - 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? - ANSWER Miner's pick
When pouring a concrete slab, which of the following tools is used to finish the concrete? - ANSWER
Trowel
How can the velocity of water flowing in a sewer be estimated? - 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? - ANSWER Have the water main adjusted and hold the grade on the sewer main
A source of infiltration in a collection is: - ANSWER Broken pipe joints
Pipe materials that are the least susceptible to corrosion by acids formed from gases generated in a
sewer is: - ANSWER VCP
, Liners are installed in sewers to correct problems caused by: - ANSWER Infiltration
"Schedule 40" refers to: - ANSWER Wall thickness
Category 1 SSO is: - 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
In a 25 MPH zone, Distance of Flagger Station in the Advanced of a Work Space should be: - ANSWER 155
feet
What is a flow rate - ANSWER Q = AV
Flow = Area x Velocity
Responsibilities - ANSWER Those duties one is held accountable for.
Responsibility - ANSWER Duty or obligation to perform a prescribed task or service or attain an object.
Theory X - ANSWER Negative approach to human relations in which a supervisor presumes most people
don't like to work and thus need to be pushed or threatened.
Theory Y - ANSWER Positive approach to human relations whereby a supervisor presumes that given,
meaningful work, most people will try hard to achieve, especially when there is an opportunity to
improve their self-regard.
Warning - ANSWER A reprimand so worded as to give formal notice to an employee that repetition of a
particular form of unacceptable behavior will draw a penalty.
Injury Illness Prevention Program - ANSWER Plan required by California Senate Bill SB 198 to establish,
implement, and maintain an effective program helping assure employee safety while on the job. It
