CWEA CSM GRADE 2 - PRACTICE TEST QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026
In order to accurately estimate the flow of a sanitary sewer overflow (SSO) you must have: - Answers
Spill start time, spill end time and spill rate
Providing a plan and schedule to properly manage, operate and maintain all parts of the sanitary
sewer system is the goal of a: - Answers A sewer system management plan (SSMP)
What are the basics elements of a safety program? - Answers Safety policy, statement, safety training,
accident investigation
What factor must be considered when obtaining an easement for construction and maintenance of a
collection system? - Answers Access for equipment and personnel
As the division manager you receive a request from your board or council, and they want an
immediate response. You do not know all the answers you should: - Answers Respond with the
information available and update them with more
If you were a supervisor of two lead workers, one whose work was exceptionally good and a second
whose work was substandard, what should you do? - Answers Discuss the problem with the
substandard foreman and offer to help before any other action is taken
In selecting pipe material for maximum service life which factor is more important? - Answers Life
expectancy of pipe
What affects the flow capacity of a sewer line? - Answers Pipe size, pipe, material, grade
When a grade conflict exists between a Water main and a sewer main, which of the following is the
best solution? - Answers Have the Water main adjusted and hold the grade on the sewer main
Why is the replacement of wastewater collection systems in some downtown streets difficult? -
Answers Crowding of other underground utilities.
Under what conditions must each member of the rescue service practice permit space rescues? -
Answers At least once a year in simulated situation using non-representative space conditions
If the camera becomes wedged during a video inspection, which of the following would be your first
step in solving the problem? - Answers Attempt to free the camera with the tag line.
Drawings which are considered "As Built" would be? - Answers Corrected construction drawings
showing changes made in the field installation.
Legally Responsible Officials are required to report category 1 sanitary sewer overflows: - Answers
Within 2 hrs.
Span & Control relates to the number of subordinates who can be supervised effectively by one
supervisor. At the top level of organizations, what is this number? - Answers 9 to 11
What is the best approach to take when handling on-the-job conflicts? - Answers Communicate
clearly without attacking the other person or personalizing the conflict
What tools are used with a power rodder? - Answers Spring blades
Tools used for sewer rodding do not include the: - Answers Lag screw
What items would you consider when selecting a solution to clear a stoppage in a sewer? - Answers
Cause of stoppage
The lowest point on the inside of a pipeline is called the: - Answers Invert
Emergency stoppages in pipelines may be cleared safely by use of: - Answers High velocity cleaners
(HVC)
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: - Answers 28 days
After completing a temporary traffic control setup for your work zone it is a good practice to: -
Answers Observe how effective your TTC setup is working to control traffic and make the necessary
changes to it if necessary.
Explosive or flammable atmospheres can develop _____________ in the collections system? -
Answers At any time
The proper testing sequence for atmospheres in confined spaces is? - Answers Oxygen content,
combustible gases and toxic gases
Employees whom in the course of their job, maybe required to wear respirators must be certified
medically fit. - Answers Annually
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? - Answers Send for help and check and /or restore breathing
, In the wastewater industry we find confined spaces everywhere. What would make a routine
confined space turn into a "permit required" confined space? - Answers Any work that may change
the air quality
It is unfortunate that in the wastewater industry most of our injuries are to what part of the body? -
Answers Head and Back
Hydraulic cleaning methods consist of cleaning a sewer with: - Answers Water under pressure that
produces high water velocities
There are _____ different areas of traffic zones when working in roadways? - Answers Four
Before starting a maintenance operation in an easement located in a backyard of a residence you
should? - Answers Contact the resident, and politely ask for permission to enter the backyard.
If a ticket is called into Dig Alert on Friday at 8am, when is the earliest you can dig? - Answers
Wednesday 8am (the day you call does not count)
Personnel entering a Permit Required Confined Space must have the following training? - Answers
Entry and rescue procedures
Four conditions are necessary to create an explosion. Three of these conditions are combustible gas,
adequate oxygen and sufficient heat. What is the fourth? - Answers Proper mixing of gas and oxygen
Flatter sewer line grades may cause added sewer maintenance expense and order nuisance. The
problem is most likely caused by? - Answers A decrease in velocity allowing gases to be released from
the wastewater
How often must an excavation site and adjacent areas be inspected for hazardous conditions? -
Answers Daily
Protective shoring systems options include all but: - Answers Working in an un-sloped trench with no
shoring
Sewer testing methods do not include: - Answers Sewage
When a citizen wants information regarding a maintenance operation you should? - Answers Give
them as much factual information as you can, and offer to help them further.
Maintenance programs are based on? - Answers Preventive and corrective maintenance principles
The goal of preventative maintenance is to? - Answers Avoid breakdowns, severe damage, or harmful
depreciation
Equipment and traffic conditions frequently require ______ driving skills just to get to the job site: -
Answers Extraordinary
The state of California required that all employers have a written: - Answers Injury and illness
prevention plan
Employers must have an active safety program. Two very important aspects of this plan should be,
routine safety meetings, and ? - Answers Get all employees to have proper safety attitude
Cal/OSHA law requires that any vertical walled trench over ____ shored., also requires that the spoil
be placed no closer than ____ from the trench. - Answers 5/2
When working with pumps or other electrical machinery we are required to follow strict lockout
requirements. One of the last requirements just before beginning to work is to? - Answers Try to start
the equipment
When working with confined spaces it is critical to remember that all confined spaces are to be
considered "permit required" confined spaces until? - Answers Pre entry checks show otherwise
Illegal or incorrect connections results from improper? - Answers Enforcement of service connection
Infiltration is detected by? - Answers Dye testing
Inflow is detected by? - Answers Smoke testing
The underside of a manhole lid can? - Answers Harbor dangerous insects
An advantage of a CCTV system is the ability to? - Answers Record infiltration water flow in action
One method of televising through flooded low spots or a dip in a sewer line is to? - Answers Use a
high velocity cleaner to push water clear of dip
The purpose of forcing air into the sewer system when smoke testing is to? - Answers Get an air flow
established
Lamping is a technique used to? - Answers Determine if a sewer line is straight and clear of
obstructions
If a stoppage occurs below a sewer ball, it must be cleared as soon as possible to avoid? - Answers
Flooding homes and/or streets
To find proper protective gear before application of a product, you would? - Answers Look at the
material safety data sheet (MSDS)
In order to accurately estimate the flow of a sanitary sewer overflow (SSO) you must have: - Answers
Spill start time, spill end time and spill rate
Providing a plan and schedule to properly manage, operate and maintain all parts of the sanitary
sewer system is the goal of a: - Answers A sewer system management plan (SSMP)
What are the basics elements of a safety program? - Answers Safety policy, statement, safety training,
accident investigation
What factor must be considered when obtaining an easement for construction and maintenance of a
collection system? - Answers Access for equipment and personnel
As the division manager you receive a request from your board or council, and they want an
immediate response. You do not know all the answers you should: - Answers Respond with the
information available and update them with more
If you were a supervisor of two lead workers, one whose work was exceptionally good and a second
whose work was substandard, what should you do? - Answers Discuss the problem with the
substandard foreman and offer to help before any other action is taken
In selecting pipe material for maximum service life which factor is more important? - Answers Life
expectancy of pipe
What affects the flow capacity of a sewer line? - Answers Pipe size, pipe, material, grade
When a grade conflict exists between a Water main and a sewer main, which of the following is the
best solution? - Answers Have the Water main adjusted and hold the grade on the sewer main
Why is the replacement of wastewater collection systems in some downtown streets difficult? -
Answers Crowding of other underground utilities.
Under what conditions must each member of the rescue service practice permit space rescues? -
Answers At least once a year in simulated situation using non-representative space conditions
If the camera becomes wedged during a video inspection, which of the following would be your first
step in solving the problem? - Answers Attempt to free the camera with the tag line.
Drawings which are considered "As Built" would be? - Answers Corrected construction drawings
showing changes made in the field installation.
Legally Responsible Officials are required to report category 1 sanitary sewer overflows: - Answers
Within 2 hrs.
Span & Control relates to the number of subordinates who can be supervised effectively by one
supervisor. At the top level of organizations, what is this number? - Answers 9 to 11
What is the best approach to take when handling on-the-job conflicts? - Answers Communicate
clearly without attacking the other person or personalizing the conflict
What tools are used with a power rodder? - Answers Spring blades
Tools used for sewer rodding do not include the: - Answers Lag screw
What items would you consider when selecting a solution to clear a stoppage in a sewer? - Answers
Cause of stoppage
The lowest point on the inside of a pipeline is called the: - Answers Invert
Emergency stoppages in pipelines may be cleared safely by use of: - Answers High velocity cleaners
(HVC)
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: - Answers 28 days
After completing a temporary traffic control setup for your work zone it is a good practice to: -
Answers Observe how effective your TTC setup is working to control traffic and make the necessary
changes to it if necessary.
Explosive or flammable atmospheres can develop _____________ in the collections system? -
Answers At any time
The proper testing sequence for atmospheres in confined spaces is? - Answers Oxygen content,
combustible gases and toxic gases
Employees whom in the course of their job, maybe required to wear respirators must be certified
medically fit. - Answers Annually
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? - Answers Send for help and check and /or restore breathing
, In the wastewater industry we find confined spaces everywhere. What would make a routine
confined space turn into a "permit required" confined space? - Answers Any work that may change
the air quality
It is unfortunate that in the wastewater industry most of our injuries are to what part of the body? -
Answers Head and Back
Hydraulic cleaning methods consist of cleaning a sewer with: - Answers Water under pressure that
produces high water velocities
There are _____ different areas of traffic zones when working in roadways? - Answers Four
Before starting a maintenance operation in an easement located in a backyard of a residence you
should? - Answers Contact the resident, and politely ask for permission to enter the backyard.
If a ticket is called into Dig Alert on Friday at 8am, when is the earliest you can dig? - Answers
Wednesday 8am (the day you call does not count)
Personnel entering a Permit Required Confined Space must have the following training? - Answers
Entry and rescue procedures
Four conditions are necessary to create an explosion. Three of these conditions are combustible gas,
adequate oxygen and sufficient heat. What is the fourth? - Answers Proper mixing of gas and oxygen
Flatter sewer line grades may cause added sewer maintenance expense and order nuisance. The
problem is most likely caused by? - Answers A decrease in velocity allowing gases to be released from
the wastewater
How often must an excavation site and adjacent areas be inspected for hazardous conditions? -
Answers Daily
Protective shoring systems options include all but: - Answers Working in an un-sloped trench with no
shoring
Sewer testing methods do not include: - Answers Sewage
When a citizen wants information regarding a maintenance operation you should? - Answers Give
them as much factual information as you can, and offer to help them further.
Maintenance programs are based on? - Answers Preventive and corrective maintenance principles
The goal of preventative maintenance is to? - Answers Avoid breakdowns, severe damage, or harmful
depreciation
Equipment and traffic conditions frequently require ______ driving skills just to get to the job site: -
Answers Extraordinary
The state of California required that all employers have a written: - Answers Injury and illness
prevention plan
Employers must have an active safety program. Two very important aspects of this plan should be,
routine safety meetings, and ? - Answers Get all employees to have proper safety attitude
Cal/OSHA law requires that any vertical walled trench over ____ shored., also requires that the spoil
be placed no closer than ____ from the trench. - Answers 5/2
When working with pumps or other electrical machinery we are required to follow strict lockout
requirements. One of the last requirements just before beginning to work is to? - Answers Try to start
the equipment
When working with confined spaces it is critical to remember that all confined spaces are to be
considered "permit required" confined spaces until? - Answers Pre entry checks show otherwise
Illegal or incorrect connections results from improper? - Answers Enforcement of service connection
Infiltration is detected by? - Answers Dye testing
Inflow is detected by? - Answers Smoke testing
The underside of a manhole lid can? - Answers Harbor dangerous insects
An advantage of a CCTV system is the ability to? - Answers Record infiltration water flow in action
One method of televising through flooded low spots or a dip in a sewer line is to? - Answers Use a
high velocity cleaner to push water clear of dip
The purpose of forcing air into the sewer system when smoke testing is to? - Answers Get an air flow
established
Lamping is a technique used to? - Answers Determine if a sewer line is straight and clear of
obstructions
If a stoppage occurs below a sewer ball, it must be cleared as soon as possible to avoid? - Answers
Flooding homes and/or streets
To find proper protective gear before application of a product, you would? - Answers Look at the
material safety data sheet (MSDS)
