CWEA CSM GRADE 1 AND 2 -
PRACTICE TEST WITH CORRECT
ANSWERS 2025-2026
1. When working with confined spaces it is critical to remember that all confined spaces are to be
considered "permit required" confined spaces until? - ANSWER Pre entry checks show
otherwise
2. You are working inside a pump station with a crew performing some technical and hazardous
maintenance. Suddenly an accident occurs that causes severe injuries to one operator. What do
you do first? - ANSWER Send for help and check and /or restore breathing
3. 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 viable for: - ANSWER
28 days
4. You should never attempt to install, troubleshoot, maintain, repair or replace electrical
equipment panels, controls, wiring or circuits unless: - ANSWER you know what you are doing,
are qualified, and are authorized.
5. Before starting a maintenance operation in an easement located in a backyard of a residence
you should? - ANSWER Contact the resident, and politely ask for permission to enter the
backyard.
or a nighttime Short Term Stationary Temporary Traffic Control Zone setup on low speed/low
volume street, the minimum height of the traffic cones used shall be? - ANSWER 28"
6.
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause: - ANSWER Odors
,7. According to the State Water Resources Control Board Order No. 2006-003-DWQ, each Enrollee
must develop and implement a system-specific: - ANSWER SSMP
8. What would cause a pump to deliver less than its expected rate of discharge? - ANSWER
Clogged impeller.
9. Lamping is a technique used to? - ANSWER Determine if a sewer line is straight and clear of
obstructions
10.
11. The proper testing sequence for atmospheres in confined spaces is? - ANSWER Oxygen content,
combustible gases and toxic gases
12. To find proper protective gear before application of a product, you would? - ANSWER Look at
the material safety data sheet (MSDS)
13. strength is greater than .05 TSF but less than 1.5 TSF or has angular gravel, you have what type
of soil? - ANSWER B
14. Employees whom in the course of their job, maybe required to wear respirators must be
certified medically fit. - ANSWER Annually
15. Flatter sewer line grades may cause added sewer maintenance expense and order nuisance. The
problem is most likely caused by? - ANSWER A decrease in velocity allowing gases to be
released from the wastewater
16. What are some types of sewer inspections? - ANSWER CCTV, Digital scanning, Zoom Cameras,
Nozzle-based Cameras, Sonar, Electro Scanning
17. It is unfortunate that in the wastewater industry most of our injuries are to what part of the
body? - ANSWER Head and Back
18. Legally Responsible Officials are required to report category 1 sanitary sewer overflows: -
ANSWER Within 2 hrs.
, 19. In selecting pipe material for maximum service life which factor is more important? - ANSWER
Life expectancy of pipe
20. What items would you consider when selecting a solution to clear a stoppage in a sewer? -
ANSWER Cause of stoppage
21. After completing a temporary traffic control setup for your work zone it is a good practice to: -
ANSWER Observe how effective your TTC setup is working to control traffic and make the
necessary changes to it if necessary.
22. One method of televising through flooded low spots or a dip in a sewer line is to? - ANSWER
Use a high velocity cleaner to push water clear of dip
23. The State Wide General Waste Discharge Requirements affect which of the following: -
ANSWER All owners of operations of sanitary sewer systems greater than 1-mile in length
24. In the wastewater industry we find confined spaces everywhere. What would make a routine
confined space turn into a "permit required" confined space? - ANSWER Any work that may
change the air quality
25. What items would you consider when selecting a solution to clear a stoppage in a sewer? -
ANSWER Cause of stoppage
26. In order to accurately estimate the flow of a sanitary sewer overflow (SSO) you must have: -
ANSWER Spill start time, spill end time and spill rate
27. Providing a plan and schedule to properly manage, operate and maintain all parts of the sanitary
sewer system is the goal of a: - ANSWER A sewer system management plan (SSMP)
PRACTICE TEST WITH CORRECT
ANSWERS 2025-2026
1. When working with confined spaces it is critical to remember that all confined spaces are to be
considered "permit required" confined spaces until? - ANSWER Pre entry checks show
otherwise
2. You are working inside a pump station with a crew performing some technical and hazardous
maintenance. Suddenly an accident occurs that causes severe injuries to one operator. What do
you do first? - ANSWER Send for help and check and /or restore breathing
3. 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 viable for: - ANSWER
28 days
4. You should never attempt to install, troubleshoot, maintain, repair or replace electrical
equipment panels, controls, wiring or circuits unless: - ANSWER you know what you are doing,
are qualified, and are authorized.
5. Before starting a maintenance operation in an easement located in a backyard of a residence
you should? - ANSWER Contact the resident, and politely ask for permission to enter the
backyard.
or a nighttime Short Term Stationary Temporary Traffic Control Zone setup on low speed/low
volume street, the minimum height of the traffic cones used shall be? - ANSWER 28"
6.
Biological activity in long, sluggish-flow, flat grade sewer lines will likely cause: - ANSWER Odors
,7. According to the State Water Resources Control Board Order No. 2006-003-DWQ, each Enrollee
must develop and implement a system-specific: - ANSWER SSMP
8. What would cause a pump to deliver less than its expected rate of discharge? - ANSWER
Clogged impeller.
9. Lamping is a technique used to? - ANSWER Determine if a sewer line is straight and clear of
obstructions
10.
11. The proper testing sequence for atmospheres in confined spaces is? - ANSWER Oxygen content,
combustible gases and toxic gases
12. To find proper protective gear before application of a product, you would? - ANSWER Look at
the material safety data sheet (MSDS)
13. strength is greater than .05 TSF but less than 1.5 TSF or has angular gravel, you have what type
of soil? - ANSWER B
14. Employees whom in the course of their job, maybe required to wear respirators must be
certified medically fit. - ANSWER Annually
15. Flatter sewer line grades may cause added sewer maintenance expense and order nuisance. The
problem is most likely caused by? - ANSWER A decrease in velocity allowing gases to be
released from the wastewater
16. What are some types of sewer inspections? - ANSWER CCTV, Digital scanning, Zoom Cameras,
Nozzle-based Cameras, Sonar, Electro Scanning
17. It is unfortunate that in the wastewater industry most of our injuries are to what part of the
body? - ANSWER Head and Back
18. Legally Responsible Officials are required to report category 1 sanitary sewer overflows: -
ANSWER Within 2 hrs.
, 19. In selecting pipe material for maximum service life which factor is more important? - ANSWER
Life expectancy of pipe
20. What items would you consider when selecting a solution to clear a stoppage in a sewer? -
ANSWER Cause of stoppage
21. After completing a temporary traffic control setup for your work zone it is a good practice to: -
ANSWER Observe how effective your TTC setup is working to control traffic and make the
necessary changes to it if necessary.
22. One method of televising through flooded low spots or a dip in a sewer line is to? - ANSWER
Use a high velocity cleaner to push water clear of dip
23. The State Wide General Waste Discharge Requirements affect which of the following: -
ANSWER All owners of operations of sanitary sewer systems greater than 1-mile in length
24. In the wastewater industry we find confined spaces everywhere. What would make a routine
confined space turn into a "permit required" confined space? - ANSWER Any work that may
change the air quality
25. What items would you consider when selecting a solution to clear a stoppage in a sewer? -
ANSWER Cause of stoppage
26. In order to accurately estimate the flow of a sanitary sewer overflow (SSO) you must have: -
ANSWER Spill start time, spill end time and spill rate
27. Providing a plan and schedule to properly manage, operate and maintain all parts of the sanitary
sewer system is the goal of a: - ANSWER A sewer system management plan (SSMP)
