APWA Certified Public Infrastructure Inspector (CPII)
1. Which of the following documents provides guidelines for constructing storm
sewers?
o A) Environmental Impact Report
o B) Construction Specifications
o C) Safety Manual
o D) Maintenance Schedule
Answer: B) Construction Specifications
Explanation: Construction Specifications outline the requirements for constructing
storm sewers, including materials, methods, and standards.
2. When inspecting water systems, what is a key aspect to verify?
o A) Aesthetic appearance
o B) Construction materials and installation methods
o C) Landscaping around the system
o D) Lighting in the vicinity
Answer: B) Construction materials and installation methods
Explanation: Ensuring that construction materials and installation methods adhere to
specifications is crucial for the integrity of the water system.
3. What type of plans is essential for inspecting sanitary sewers?
o A) Electrical plans
o B) Architectural plans
o C) Plumbing plans
o D) Civil engineering plans
Answer: D) Civil engineering plans
Explanation: Civil engineering plans provide detailed information on the
construction and placement of sanitary sewers.
4. In inspecting utility systems, which aspect is NOT typically reviewed?
o A) Construction methods
o B) Future maintenance schedules
o C) Compliance with specifications
o D) Utility system performance under stress
Answer: B) Future maintenance schedules
Explanation: While inspecting utility systems focuses on compliance with current
specifications and construction methods, future maintenance schedules are typically
outside the scope of inspection.
5. What should be verified for backfill material used in trench excavation?
o A) Color and texture
o B) Compliance with approved plans
o C) Availability from local suppliers
o D) Cost-effectiveness
1
, APWA Certified Public Infrastructure Inspector (CPII)
Answer: B) Compliance with approved plans
Explanation: Backfill material must meet the specifications outlined in the approved
plans to ensure stability and proper support.
6. When inspecting manholes, what is an essential feature to check?
o A) Surface finish
o B) Proper sealing and alignment
o C) Manufacturer's logo
o D) Installation date
Answer: B) Proper sealing and alignment
Explanation: Proper sealing and alignment are critical to prevent leaks and ensure the
structural integrity of manholes.
7. Which of the following is a primary concern when inspecting valves?
o A) Valve color
o B) Accessibility and operability
o C) Manufacturer's warranty
o D) Installation cost
Answer: B) Accessibility and operability
Explanation: Ensuring that valves are accessible and functional is essential for
maintaining and operating the utility system effectively.
8. What must be checked for pipes used in underground construction?
o A) Color and branding
o B) Diameter and material compliance
o C) Price and supplier reputation
o D) Historical performance
Answer: B) Diameter and material compliance
Explanation: The diameter and material of pipes must comply with the specifications
to ensure proper function and durability.
9. What is a key consideration when inspecting utility installation in a trenchless
method?
o A) Surface appearance
o B) Depth and alignment accuracy
o C) Landscaping around the site
o D) Construction crew's uniform
Answer: B) Depth and alignment accuracy
Explanation: Ensuring that the installation is at the correct depth and alignment is
crucial for the functionality and safety of trenchless utility installations.
10. During the inspection of utility taps, what should be verified?
o A) Tap color
o B) Correct size and secure connection
2
, APWA Certified Public Infrastructure Inspector (CPII)
o C) Availability of taps in stock
o D) Cost of the taps
Answer: B) Correct size and secure connection
Explanation: The size and secure connection of utility taps must be verified to ensure
proper function and prevent leaks.
11. What is important to check during trench backfill inspections?
o A) Backfill material aesthetics
o B) Proper compaction and material type
o C) Backfill cost
o D) Vendor reputation
Answer: B) Proper compaction and material type
Explanation: Proper compaction and the correct type of material are crucial for the
stability and safety of backfilled trenches.
12. When inspecting discontinued or interrupted services, what should be verified?
o A) Service provider's schedule
o B) Safe and proper capping or sealing
o C) Service fees
o D) Historical service issues
Answer: B) Safe and proper capping or sealing
Explanation: Discontinued or interrupted services need to be properly capped or
sealed to prevent hazards and ensure safety.
13. What is the purpose of a mandrel test in sewer infrastructure?
o A) To measure the pipe's internal diameter
o B) To test the pipe's resistance to pressure
o C) To inspect the pipe's alignment and deflection
o D) To verify the pipe's resistance to chemicals
Answer: C) To inspect the pipe's alignment and deflection
Explanation: A mandrel test is used to ensure that pipes are properly aligned and not
excessively deflected.
14. Which test is used to measure the air-tightness of a sewer pipe?
o A) Vacuum test
o B) Mandrel test
o C) Infiltration test
o D) Chlorine residual test
Answer: A) Vacuum test
Explanation: The vacuum test measures the air-tightness of sewer pipes to ensure
there are no leaks.
15. What does a video inspection of sewer lines typically assess?
3
, APWA Certified Public Infrastructure Inspector (CPII)
o A) Pipe material and color
o B) Internal condition and blockages
o C) Pipe installation cost
o D) Surface appearance of the pipes
Answer: B) Internal condition and blockages
Explanation: Video inspections are used to assess the internal condition of sewer
lines and identify any blockages or issues.
16. In an infiltration/exfiltration test, what is being measured?
o A) The flow rate of water into or out of a sewer system
o B) The color change in the pipe material
o C) The pipe's resistance to external pressure
o D) The temperature of the sewer system
Answer: A) The flow rate of water into or out of a sewer system
Explanation: Infiltration/exfiltration tests measure the amount of water entering or
exiting the sewer system to detect leaks or infiltration issues.
17. What is the primary purpose of hydrostatic pressure testing on water lines?
o A) To check for leaks and verify pressure capacity
o B) To inspect the internal diameter of the pipe
o C) To measure the pipe's resistance to chemicals
o D) To evaluate the pipe's visual appearance
Answer: A) To check for leaks and verify pressure capacity
Explanation: Hydrostatic pressure testing ensures that water lines can withstand the
required pressure without leaking.
18. When monitoring hydrostatic pressure testing, which of the following is a critical
factor?
o A) Temperature of the water
o B) Duration of the test
o C) Surface color of the pipe
o D) Pipe's brand name
Answer: B) Duration of the test
Explanation: The duration of the test is crucial to ensure that the pipe maintains
pressure over time without any leaks.
19. What is tested to ensure water quality in water systems?
o A) Chlorine residual and bacteria levels
o B) Aesthetic appearance of the water
o C) Cost of water supply
o D) Water temperature
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1. Which of the following documents provides guidelines for constructing storm
sewers?
o A) Environmental Impact Report
o B) Construction Specifications
o C) Safety Manual
o D) Maintenance Schedule
Answer: B) Construction Specifications
Explanation: Construction Specifications outline the requirements for constructing
storm sewers, including materials, methods, and standards.
2. When inspecting water systems, what is a key aspect to verify?
o A) Aesthetic appearance
o B) Construction materials and installation methods
o C) Landscaping around the system
o D) Lighting in the vicinity
Answer: B) Construction materials and installation methods
Explanation: Ensuring that construction materials and installation methods adhere to
specifications is crucial for the integrity of the water system.
3. What type of plans is essential for inspecting sanitary sewers?
o A) Electrical plans
o B) Architectural plans
o C) Plumbing plans
o D) Civil engineering plans
Answer: D) Civil engineering plans
Explanation: Civil engineering plans provide detailed information on the
construction and placement of sanitary sewers.
4. In inspecting utility systems, which aspect is NOT typically reviewed?
o A) Construction methods
o B) Future maintenance schedules
o C) Compliance with specifications
o D) Utility system performance under stress
Answer: B) Future maintenance schedules
Explanation: While inspecting utility systems focuses on compliance with current
specifications and construction methods, future maintenance schedules are typically
outside the scope of inspection.
5. What should be verified for backfill material used in trench excavation?
o A) Color and texture
o B) Compliance with approved plans
o C) Availability from local suppliers
o D) Cost-effectiveness
1
, APWA Certified Public Infrastructure Inspector (CPII)
Answer: B) Compliance with approved plans
Explanation: Backfill material must meet the specifications outlined in the approved
plans to ensure stability and proper support.
6. When inspecting manholes, what is an essential feature to check?
o A) Surface finish
o B) Proper sealing and alignment
o C) Manufacturer's logo
o D) Installation date
Answer: B) Proper sealing and alignment
Explanation: Proper sealing and alignment are critical to prevent leaks and ensure the
structural integrity of manholes.
7. Which of the following is a primary concern when inspecting valves?
o A) Valve color
o B) Accessibility and operability
o C) Manufacturer's warranty
o D) Installation cost
Answer: B) Accessibility and operability
Explanation: Ensuring that valves are accessible and functional is essential for
maintaining and operating the utility system effectively.
8. What must be checked for pipes used in underground construction?
o A) Color and branding
o B) Diameter and material compliance
o C) Price and supplier reputation
o D) Historical performance
Answer: B) Diameter and material compliance
Explanation: The diameter and material of pipes must comply with the specifications
to ensure proper function and durability.
9. What is a key consideration when inspecting utility installation in a trenchless
method?
o A) Surface appearance
o B) Depth and alignment accuracy
o C) Landscaping around the site
o D) Construction crew's uniform
Answer: B) Depth and alignment accuracy
Explanation: Ensuring that the installation is at the correct depth and alignment is
crucial for the functionality and safety of trenchless utility installations.
10. During the inspection of utility taps, what should be verified?
o A) Tap color
o B) Correct size and secure connection
2
, APWA Certified Public Infrastructure Inspector (CPII)
o C) Availability of taps in stock
o D) Cost of the taps
Answer: B) Correct size and secure connection
Explanation: The size and secure connection of utility taps must be verified to ensure
proper function and prevent leaks.
11. What is important to check during trench backfill inspections?
o A) Backfill material aesthetics
o B) Proper compaction and material type
o C) Backfill cost
o D) Vendor reputation
Answer: B) Proper compaction and material type
Explanation: Proper compaction and the correct type of material are crucial for the
stability and safety of backfilled trenches.
12. When inspecting discontinued or interrupted services, what should be verified?
o A) Service provider's schedule
o B) Safe and proper capping or sealing
o C) Service fees
o D) Historical service issues
Answer: B) Safe and proper capping or sealing
Explanation: Discontinued or interrupted services need to be properly capped or
sealed to prevent hazards and ensure safety.
13. What is the purpose of a mandrel test in sewer infrastructure?
o A) To measure the pipe's internal diameter
o B) To test the pipe's resistance to pressure
o C) To inspect the pipe's alignment and deflection
o D) To verify the pipe's resistance to chemicals
Answer: C) To inspect the pipe's alignment and deflection
Explanation: A mandrel test is used to ensure that pipes are properly aligned and not
excessively deflected.
14. Which test is used to measure the air-tightness of a sewer pipe?
o A) Vacuum test
o B) Mandrel test
o C) Infiltration test
o D) Chlorine residual test
Answer: A) Vacuum test
Explanation: The vacuum test measures the air-tightness of sewer pipes to ensure
there are no leaks.
15. What does a video inspection of sewer lines typically assess?
3
, APWA Certified Public Infrastructure Inspector (CPII)
o A) Pipe material and color
o B) Internal condition and blockages
o C) Pipe installation cost
o D) Surface appearance of the pipes
Answer: B) Internal condition and blockages
Explanation: Video inspections are used to assess the internal condition of sewer
lines and identify any blockages or issues.
16. In an infiltration/exfiltration test, what is being measured?
o A) The flow rate of water into or out of a sewer system
o B) The color change in the pipe material
o C) The pipe's resistance to external pressure
o D) The temperature of the sewer system
Answer: A) The flow rate of water into or out of a sewer system
Explanation: Infiltration/exfiltration tests measure the amount of water entering or
exiting the sewer system to detect leaks or infiltration issues.
17. What is the primary purpose of hydrostatic pressure testing on water lines?
o A) To check for leaks and verify pressure capacity
o B) To inspect the internal diameter of the pipe
o C) To measure the pipe's resistance to chemicals
o D) To evaluate the pipe's visual appearance
Answer: A) To check for leaks and verify pressure capacity
Explanation: Hydrostatic pressure testing ensures that water lines can withstand the
required pressure without leaking.
18. When monitoring hydrostatic pressure testing, which of the following is a critical
factor?
o A) Temperature of the water
o B) Duration of the test
o C) Surface color of the pipe
o D) Pipe's brand name
Answer: B) Duration of the test
Explanation: The duration of the test is crucial to ensure that the pipe maintains
pressure over time without any leaks.
19. What is tested to ensure water quality in water systems?
o A) Chlorine residual and bacteria levels
o B) Aesthetic appearance of the water
o C) Cost of water supply
o D) Water temperature
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