CWEA Collection System Maintenance (CSM) Certification Grade 2 Practice Test

These questions are part of the practice quiz. Start practicing

• What is a lift station?
• How many types of common shoring are recognized?
• How often must employees who are required to wear respirators be certified as medically fit?
• What is the primary concern when developing a system-specific SSMP?
• For how long should SSO Reports be kept on file?
• What is the minimum distance traffic control flaggers should stand from the work space?
• Why is it important to know the location of a cleaning tool in a sewer?
• What is the potential hazard associated with not properly supporting a rigid pipe?
• If 1,248 gallons of sewage overflow are fully captured, what category of overflow is this?
• Which inspection method involves the use of cameras to assess the inside of sewer lines?
• What is the velocity in feet per second (fps) if it takes 7 minutes and 30 seconds for dye to travel 860 feet?
• What does the acronym PVC stand for?
• True or False: The competent person has the authority to make changes or shut down the job.
• Which of the following factors affects the flow capacity of a sewer line?
• What is the critical factor when obtaining an easement for construction and maintenance of a collection system?
• Where would one look to find proper protective gear before applying a product?
• Which type of SSO typically poses the least risk to public health?
• What can be a potential hazard of not controlling odors in sewer systems?
• Which of the following statements best defines the function of a wear ring in pumps?
• What is the best approach to handling on-the-job conflicts?
• In terms of water quality, what role do wastewater systems play?
• Which of the following is an indicator for the need to utilize atmospheric testing?
• What is typically not a factor in determining the flow capacity of sewers?
• What is the purpose of the technique known as lamping?
• How is a 'Competent Person' defined by OSHA?
• What does I/l stand for in collection system terminology?
• Why are wear rings installed in a pump?
• Why is the assessment of air flow important in sewer systems?
• If the camera becomes wedged during a video inspection, what should be your first step in solving the problem?
• What is the procedure that places a manhole under a vacuum to test the structural integrity of the manhole?
• FOG refers to which substances that can clog sewer pipes?
• How are confined spaces treated until proven otherwise?
• If the soil has a compressive strength of .05 tsf or less, it is classified as what type?
• Which gases should a gas detection device specifically test for?
• A traffic control flagger should wear a ______ hard hat.
• What does CIWQS stand for?
• What do hydraulic cleaning methods use to clean a sewer?
• What is one way to know your High Velocity Cleaner/Hydro Jetter needs maintenance?
• Which of the following is not a protective shoring system option?
• What should you do after completing a temporary traffic control setup for a work zone?
• What database must all reported SSOs be submitted to electronically?
• How can the presence of rodents and insects be controlled in sewer systems?
• How often must the SSMP be updated?
• What is essential for maintaining safe working conditions in a trench?
• What is the time frame for reporting a Category 1 SSO?
• Balling and Kite are methods of which type of cleaning?
• What is a common consequence of failing to report SSOs in a timely manner?
• What is the purpose of using hydraulic cleaning methods?
• How should a manager respond to an immediate request from their board or council when unsure of all answers?
• What is a common result of improperly maintained sewer systems?
• What component of a sewer system helps maintain proper flow by bypassing overfilled sections?
• What is the role of the Advanced Warning Area in traffic control?
• True or False: Protection systems are required in trenches that are 5 feet or deeper.
• Which color coding represents gas in USA utility markings?
• What should you do before starting a maintenance operation in a residential backyard easement?
• In the wastewater industry, most injuries are commonly associated with which part of the body?
• Which of the following is a critical aspect of an S.O.P. about lift station operation?
• What is a primary purpose of daily inspections of excavation sites?
• When selecting a solution to clear a stoppage in a sewer, what factor is most important to consider?
• What tools are typically used with a power rodder?
• What should be done if a sewer line is identified as being surcharged?
• What does the Termination Area signify in traffic control zones?
• What is the primary purpose of atmospheric testing equipment?
• What are the minimum tire tread requirements on a combo truck for the rear tires?
• According to the utility color coding system, which color represents area of proposed work?
• What is the recommended normal flow speed to reduce material buildup in sewer systems?
• What control types are commonly used to start or stop pumps?
• What does SSO stand for?
• Which equipment is used for variable speed control in pumping systems?
• In a sewer system, what does 'SSO' stand for?
• What defines a non-permit confined space?
• A person trained according to Title 8, Calif. Code of Regulations is considered what?
• What should a supervisor do when faced with a lead worker who performs substandard work?
• For a Category 2 SSO, what is the maximum time allowed for reporting?
• Which document is necessary when developing an S.O.P. for hazardous substance spill cleanup?
• What is the primary formula used to calculate distance in relation to speed and time?
• Which of the following is a Rodder cleaning tool?
• Inflow in a sewer system can be detected by what method?
• In the event of a serious injury within a pump station, what is the first action you should take?
• Which of the following is NOT one of the four traffic control zones?
• What does a Plan View depict in civil engineering?
• What constitutes a Collection System?
• Orange markings in USA utility color coding signify what type of service?
• What can cause a pump to operate below its expected discharge rate?
• What is the minimum size cone that can be used in a 25mph or 35mph zone?
• What should be the first check performed during a pre-trip inspection?
• What should be a priority during emergency space rescues?
• What type of valve is often used for controlling flow in sewer systems?
• What system often integrates with GIS to enhance infrastructure management?
• Which device is commonly used to control pump operation in a sewer lift station?
• Which of the following is a common characteristic of a sanitary sewer overflow?
• What characterizes Type-A soil?
• Which safety equipment is essential for workers in potentially hazardous environments in the wastewater field?
• What is a Mandrel used for in the inspection process?
• What should workers be trained in regarding High Speed Temporary Traffic Control Zones?
• Category 1 SSO's that discharge to a drainage channel and/or surface water must be reported within what timeframe?
• How often should the Collection System Questionnaire be updated?
• Which of the following is NOT an example of a level control device for a pump station?
• When monitoring confined spaces for safety, what is a primary concern?
• What should you do with your gear box oil during a pre-trip inspection?
• What type of impact is most often associated with Category 4 SSO?
• Which color is used for indicating environmentally recycled materials in the USA color coding system?
• What should you provide to a citizen requesting information about a maintenance operation?
• What are the consequences of sewer pipes being clogged by FOG?
• In creating an S.O.P. for air monitoring in a Permit Required Confined Space, which element is crucial to include?
• What is an ideal feature of a well-maintained sewer system?
• Before driving, you should ensure that all safety equipment is checked and in place. What is included in this check?
• What type of pipe is vitrified clay pipe classified as?
• What is a common safety precaution before entering a manhole?
• Which type of cleaning is specifically designed for clearing roots from a sewer line?
• Which items are included in the components of manholes?
• What is the best practice before cleaning sewers?
• Which type of testing uses liquid to check for leaks in sewers?
• Which equipment is most commonly used for trench excavations?
• What does the term "Operating Range" refer to in a pump station?
• What degree of nozzle jet is recommended for jet cleaning on a steep grade?
• For nighttime Short Term Stationary Temporary Traffic Control Zones on low speed streets, what is the minimum height of traffic cones?
• If a sewage spill was observed running at 6 gallons per minute for 27 minutes, how much sewage went uncaptured?
• When is the best time to conduct maintenance checks on sewage systems?
• Which of these is crucial for the mixing of flammable materials?
• What is necessary to ensure the proper fit of a respirator?
• Which of the following methods is least effective for resolving workplace disputes?
• To properly report a Category 2 SSO in the Statewide SSO Data-base, what information regarding the location must be known?
• Which gas is most commonly associated with septic wastewater?
• What should be monitored in a gravity sewer system to ensure optimal performance?
• When preparing for a hazardous substance spill, which factor should be prioritized in the S.O.P.?
• At the top level of organizations, what is the span and control number of subordinates that can be effectively supervised by one supervisor?
• What is the primary purpose of adding sodium hypochlorite to sewers?
• What is the recommended method for clearing emergency stoppages in pipelines?
• According to OSHA standards, how far should spoil piles be placed from the edge of an open excavation trench?
• When selecting pipe material for a collection system, which factor is most crucial for maximizing service life?
• Do sanitary sewer system agencies have to report all SSOs?
• Sewers are considered _______ when the supply of water to be carried is greater than the capacity of the pipes to carry flow.
• What does proper operation and maintenance of a wastewater collection system entails?
• What is the purpose of a mandrel in pipeline testing?
• What type of drawings reflect the final construction status of a project?
• Which testing method is not recommended for identifying inflow and infiltration for manholes?
• What does an NPDES Permit regulate?
• What does the white color coding indicate in USA utility markings?
• According to Cal/OSHA law, a vertical walled trench exceeding what depth must be shored?
• What is a primary concern when dealing with inflow and infiltration in sewer systems?
• If the soil strength is greater than 0.5 tsf but less than 1.5 tsf, what type of soil is indicated?
• What is the primary goal of preventive maintenance?
• Which cleaning tool is typically used to navigate bends and curves in a sewer line?
• How should traffic be managed during construction in high-speed zones to ensure worker safety?
• Which of the following substances is particularly harmful in a sewer environment?
• What is the significance of a Terminal cleanout in a sewer system?
• What is one of the key considerations in setting up Temporary Traffic Control Zones?
• What can increased odor nuisance in sewer lines indicate?
• Which of the following represents a safety measure for handling hazardous chemicals?
• What practice helps to prevent the buildup of fats, oils, and grease in sewer systems?
• What is the recommended course of action when a grade conflict exists between a water main and a sewer main?
• What is the typical reason for conducting an agreed-upon site visit before excavation work?
• What type of pipe is denoted by the acronym CIP?
• What type of pipe is commonly used in underground wastewater systems?
• How many different areas of traffic zones are there when working on roadways?
• What is the purpose of shoring in confined spaces?
• What purpose does a Hand-Off-Auto control serve in a sewer system?
• Prior to removing a manhole cover, what is the first thing you should do?
• What two key components should an active safety program include?
• In creating an explosion, three conditions are combustible gas, adequate oxygen, and sufficient heat. What is the fourth condition?
• What is the significance of the Transition Area in traffic control?
• True or False: You should notify local fire and police departments about planned smoke testing.
• Which of the following are fundamental elements of a safety program?
• What key function does the Activity Area serve in traffic control zones?
• What is a significant advantage of using a CCTV system in sewer maintenance?
• A method used to destroy existing roots in sewers and prevent regrowth for periods of 3 to 5 years is known as?
• Improper enforcement of service connection results in what?
• What is a contributing factor to added sewer maintenance expenses caused by flatter sewer line grades?
• In safety training for excavation work, what is an important focus area?
• How long is the inquiry identification number for an underground service alert (USA) considered viable?
• What is the key characteristic of a Class C fire?
• What does the state of California require all employers to have documented?
• What is the SCADA System primarily used for?
• What is the primary purpose of a sewer system management plan (SSMP)?
• What device should restaurants have installed to control grease entering the sewer system?
• In a safety program, what does a safety policy primarily establish?
• What color marking would indicate water services according to USA utility color coding?
• Which of the following best describes 'Gravel, sand, loamy sand'?
• What are the requirements for a Class B license?
• What method is often used by a balling crew to communicate with each other?
• What is the color code used for indicating electricity in USA utility markings?
• Which of the following is a form of Chemical Cleaning?
• What type of failure is included in lift station failures?
• Which valve is used to prevent backflow in a sewage system?
• Which method is used for cutting, pushing, scraping, or pulling debris out of a pipe?
• What is the main objective of cleaning collection systems?
• Which of the following is NOT a type of sewer inspection?
• What primary safety guideline should be included in an S.O.P. for scheduled maintenance of electrical equipment?
• What cleaning method is employed when heavy roots or debris are present in the pipe?
• What precaution should be taken when working in septic environments?
• What is a responsibility of workers in relation to SSO reporting?
• What does exfiltration refer to?
• Which of the following components is typically found in the dry well of a sewer lift station?
• What can be found on the underside of a manhole lid?
• Which technique is useful for understanding how infiltration water flows during maintenance activities?
• Manholes in straight runs should be spaced no farther apart than what distance to ensure appropriate cleaning?
• In the context of sewage spills, what does the term "overflow" refer to?
• Which maintenance activity is crucial after a heavy rainfall to avoid infrastructure failure in a sewer system?
• What condition should be reported during pre-trip inspections regarding the brakes?
• What is the main purpose of the Clean Water Act?
• True or False: Preventive maintenance optimizes resources and lowers costs to overall maintenance of the system.
• What is the ideal type of connection for a sewer lateral to a sewer mainline?
• What kind of injury could hand protection help prevent?
• What is the minimum length of taper required in a temporary traffic control setup?
• What effect does decreased velocity in sewer lines have on solids?
• What precautions should be taken for chemicals with high flammability hazards?
• What information is essential to estimate the flow of a sanitary sewer overflow (SSO)?
• A Type-C soil is primarily made up of which materials?
• True or False: An operator should use a 15% nozzle jet when cleaning a steel hill.
• Why are gasoline and volatile solvents deemed objectionable in a sewer?
• What is the primary function of wastewater collection systems?
• What is the first step in managing a substandard performance issue?
• In which scenario would you need a permit to enter a confined space?
• If sewage is spewing at a rate of 166 gallons per minute for 22 minutes, how many total gallons overflow?
• What does the acronym CIPP stand for?
• Under what condition should work on electrical equipment in sewer systems be performed?
• The State Wide General Waste Discharge Requirements apply to which operations?
• In the color code system, blue is used to represent which utility?
• Which class of fire involves combustible metals?
• What type of soil is characterized as hardpan or clay?
• What must be done just before beginning work on pumps or electrical machinery during the lockout process?
• Which of the following is a component of a Traffic Control Zone?
• What types of sewer testing involve identifying system integrity?
• What does the acronym SSO stand for in the context of sewage systems?
• Which of the following indicates a hazardous materials pipeline?
• Which types of physical damage can allow roots to enter a collection system?
• What information is represented in a Profile View?
• In USA utility color coding, what does green represent?
• If 2,367 gallons of sewage overflow and only 2,200 gallons are captured, what category SSO is this?
• If a ticket is called into Dig Alert on Friday at 8am, when is the earliest you can begin digging?
• Which type of sewer cleaning is the most effective for debris removal?
• What method can be used to televise a sewer line through flooded low spots?
• What is the proper sequence for testing atmospheres in confined spaces?
• Why should hydrogen sulfide levels in sewers be controlled?
• What could cause a pump to deliver less than its expected rate of discharge?
• To improve worker safety in High Speed Temporary Traffic Control Zones, which factor is essential?
• Which best describes the distinction between a trench and an excavation?
• What is one source of excessive clear water that can infiltrate a collection system?
• Under what conditions must each member of the rescue service practice permit space rescues?
• Legally Responsible Officials are required to report category 1 sanitary sewer overflows within how much time?
• What safety equipment is required when working in areas where there is a potential risk of head injuries?
• Maintenance programs are primarily based on which principles?
• Which of the following items do you not have to check on a pre-trip inspection?
• What does a high velocity cleaner primarily achieve in sewer maintenance?
• For effective jet cleaning, what should the operator control not exceed in jet velocity?
• Which key factor should be addressed in an S.O.P. for a lift station failure?
• What type of pump is typically used in lift station wet wells?
• What color coding is used for survey markings in the utility color coding system?
• Which repair method allows for the entire pipe section to be replaced or lined with minimal disruption to the ground surface above the pipe?
• How long do you have to report a Category 3 SSO?
• What factor can influence the pressure a pump can generate?
• Which component is crucial for an effective accident investigation in a safety program?
• A crucial role of the Competent Person is to:
• What is a requirement for the operation of high velocity cleaners in emergency situations?
• What method is commonly used to detect infiltration?
• Which federal act addresses regulations concerning water pollution?
• Which of the following is NOT one of the four most common types of respirators?
• What should occur before the start date of an excavation in high priority subsurface installations?
• What type of testing uses water to assess the integrity of a system, often involving pressure controls?
• What is one of the key components of a trench safety program?
• What is the formula for calculating the area of a square?
• What is a common effect of prolonged exposure to high noise levels without protection?
• Why is it important to clear a stoppage occurring below a sewer ball promptly?
• Which of the following conditions might indicate a sewer overflow?
• What issue may arise from flatter sewer line grades?
• What check should be done prior to driving a vehicle?
• What is the significance of observing traffic patterns after setting up a traffic control for maintenance work?
• What is the primary purpose of forcing air into a sewer system during smoke testing?
• What should be considered when planning smoke testing of a sewer system?
• What type of driving skills might be necessary to navigate equipment and traffic conditions on the job site?
• What is necessary to ensure proper wastewater management in collection systems?
• In trench safety, what is the primary role of a competent person?
• Which is NOT a component of a Collection System?
• Which of the following valves is NOT a common type?
• Why is it important to monitor infiltration in a collection system?
• What is indicated by the color purple in USA utility markings?
• How can roots enter collection systems?
• How often must an excavation site and adjacent areas be inspected for hazardous conditions?
• Which of the following additives is effective in preventing FOG build-up?
• What are the main access points for a gravity sewer system?
• Which of the following is a significant safety consideration during trench excavations?
• What is inflow in the context of wastewater systems?
• If soil strength is greater than .05 tsf but less than 1.5 tsf or contains angular gravel, what type of soil is it classified as?
• Which term refers to the process of managing and monitoring sewage systems using technology?
• If the soil has a compressive strength of 0.5 or less, it is classified as?
• What causes infiltration in a sewer system?
• Which of the following is important in managing a work zone safely during maintenance activities?
• At what oxygen level is the alarm in a gas detection meter typically set to go off?
• The lack of an unpleasant odor in a manhole or lift station does not always indicate what about gas presence?
• Which statement accurately describes the properties of vitrified clay pipe?
• Which cleaning method is considered the least effective for removing grease?
• What does the acronym PVC stand for in plumbing?
• What does the acronym "LEL" signify on a gas detection meter?
• What is a likely consequence of biological activity in long, sluggish-flow, flat grade sewer lines?
• True or False: In an emergency situation, you can dig on your own account.
• What does the acronym BOD represent in waste management?
• When must Category 4 SSO spills be reported?
• What should be included in a plan for managing a sanitary sewer system?
• Which gas is commonly referred to as the "Silent Killer"?
• What is the main purpose of manholes in wastewater systems?
• The Buffer Zone is part of which traffic control component?
• What could result from not maintaining a safe environment in a confined space?
• Why is replacing wastewater collection systems in downtown areas often challenging?
• What defines corrosivity in a chemical context?
• Which type of valve is generally used for isolating sections of a sewer system?
• How is the total length of a sewer line segment determined between manholes?
• Which description fits Type-B soil?
• What qualifies as a Category 4 Sanitary Sewer Overflow (SSO)?
• What maintenance issue may arise from flat grade sewer lines?
• What is the definition of a "transition area" in traffic control?
• Which component is part of a centrifugal pump?
• What is one advantage of using vitrified clay pipe (VCP) for gravity sanitary sewers?
• How long is a DigAlert ticket valid before it expires?
• What document is critical for developing a Standard Operating Procedure (S.O.P) for hazardous substance spill clean up?
• What should you do if you're in a confined space and your gas detector alarms with a high toxic level?
• What is a permit-required confined space?
• Ductile Iron Pipe (DIP) is considered what type of pipe?
• What is the primary function of a sewer Interceptor?
• What does VCP stand for in the context of piping materials?
• What is the formula for calculating the volume of a cube?
• At what percentage are alarms for Lower Explosive Limits (LEL) typically set in atmospheric testing equipment?
• What should be avoided in the storage of highly corrosive chemicals?
• What category of overflow is associated with 550 gallons of sewage that do not reach surface waters?
• When is hand protection required in the workplace?
• True or False: Improperly maintained systems often lead to SSOs caused by pipe failures and manhole deterioration.
• What is the primary function of a power rodder in sewage maintenance?
• When is hearing protection required in a work environment?
• Why is it important to adhere to reporting deadlines for SSO spills?
• How long shall SSO Reports be kept on file?
• What can be used to evaluate whether atmospheric conditions in a confined space are safe?
• True or False: High Velocity Cleaners are often referred to as Hydro-Jetters.
• Which of the following is NOT a tool used for sewer rodding?
• In wastewater management, what is a Private Sewer Lateral commonly abbreviated as?
• What characterizes a Class B fire?
• Which of the following is a component of a sewer lift station?
• What do you need to do if you observe hazardous conditions during an inspection?
• Which of the following is a common indicator that a sewer line may be surcharged?
• Which of the following best describes the overall goal of preventive maintenance in a collection system?
• What color is assigned to communications in the USA color coding system?
• Which method is not typically included in sewer testing methods?
• What is a characteristic of a rigid pipe?
• What is the maximum allowable slope for Type A soil?
• In the context of utility markings, green signifies what kind of service?
• What is the minimum width for traffic control lanes on a street with a 35 MPH speed limit?
• Which of the following is not a type of shoring?
• Explosive or flammable atmospheres in the collections system can develop at which time?
• In terms of air monitoring, what does proper P.P.E. stand for?
• Which type of fire is classified as Class A?
• What is the required system that each Enrollee must develop and implement according to the State Water Resources Control Board Order No. 2006-003-DWQ?
• In a pipeline, what is the term for the lowest point on the inside?
• What is a hazard that can potentially damage a TV camera in a sewer system?
• What type of training must personnel have when entering a Permit Required Confined Space?
• What potential hazard is associated with an excavation?
• What can turn a routine confined space into a "permit required" confined space?
• What defines the "haunch zone" of an excavation?
• True or False: Trenches that are 4 feet or deeper are considered hazardous environments.
• Drawings that are considered 'As Built' would be?
• How is a Cast-in-Place manhole base created?