Stormwater Inspector Certification Exam Prep
Questions And Answers With Verified
Rationales | 2026/27 Qs & Ans | Digital Pdf
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1. What is the primary purpose of stormwater management?
A. Increase flooding
B. Control runoff quantity and improve water quality
C. Eliminate all rainfall
D. Increase sediment discharge
Answer: B
Rationale: Stormwater management reduces flooding, erosion, and
pollution entering waterways.
2. Which pollutant is most commonly associated with construction site
runoff?
A. Sediment
B. Oxygen
C. Nitrogen gas
D. Chlorine residual
Answer: A
Rationale: Construction activities commonly generate sediment-laden
runoff.
© 2026 Academics_Excellence. All Rights Reserved.
,3. What does BMP stand for in stormwater management?
A. Basic Maintenance Plan
B. Best Management Practice
C. Biological Monitoring Procedure
D. Basin Measurement Program
Answer: B
Rationale: BMPs are practices designed to reduce stormwater pollution.
4. Which device is commonly used to trap sediment on construction sites?
A. Silt fence
B. Chlorinator
C. Aeration basin
D. Sludge digester
Answer: A
Rationale: Silt fences slow runoff and capture sediment particles.
5. What is the purpose of a storm drain inlet protection device?
A. Increase runoff velocity
B. Prevent sediment and debris from entering storm drains
C. Raise pH levels
D. Eliminate erosion completely
© 2026 Academics_Excellence. All Rights Reserved.
,Answer: B
Rationale: Inlet protection reduces pollutants entering drainage systems.
6. Which agency administers the National Pollutant Discharge Elimination
System (NPDES)?
A. EPA
B. FEMA
C. OSHA
D. USDA
Answer: A
Rationale: The Environmental Protection Agency oversees the NPDES
permitting program.
7. Which condition most increases erosion potential?
A. Stabilized vegetation
B. Bare disturbed soil
C. Low rainfall intensity
D. Flat terrain only
Answer: B
Rationale: Exposed soil is highly vulnerable to erosion from rainfall and
runoff.
© 2026 Academics_Excellence. All Rights Reserved.
, 8. What is the purpose of sediment basins?
A. Increase runoff speed
B. Capture and settle suspended sediments
C. Remove dissolved oxygen
D. Add nutrients to runoff
Answer: B
Rationale: Sediment basins reduce suspended solids before discharge.
9. Which inspection activity is most important after a storm event?
A. Checking BMP effectiveness and damage
B. Repainting signs only
C. Measuring pipe color
D. Reducing inspection frequency
Answer: A
Rationale: Storm events may damage controls and create new erosion
issues.
10. Which pollutant commonly originates from vehicle leaks?
A. Oil and grease
B. Sand only
C. Oxygen
D. Alkalinity
© 2026 Academics_Excellence. All Rights Reserved.
Questions And Answers With Verified
Rationales | 2026/27 Qs & Ans | Digital Pdf
Download
1. What is the primary purpose of stormwater management?
A. Increase flooding
B. Control runoff quantity and improve water quality
C. Eliminate all rainfall
D. Increase sediment discharge
Answer: B
Rationale: Stormwater management reduces flooding, erosion, and
pollution entering waterways.
2. Which pollutant is most commonly associated with construction site
runoff?
A. Sediment
B. Oxygen
C. Nitrogen gas
D. Chlorine residual
Answer: A
Rationale: Construction activities commonly generate sediment-laden
runoff.
© 2026 Academics_Excellence. All Rights Reserved.
,3. What does BMP stand for in stormwater management?
A. Basic Maintenance Plan
B. Best Management Practice
C. Biological Monitoring Procedure
D. Basin Measurement Program
Answer: B
Rationale: BMPs are practices designed to reduce stormwater pollution.
4. Which device is commonly used to trap sediment on construction sites?
A. Silt fence
B. Chlorinator
C. Aeration basin
D. Sludge digester
Answer: A
Rationale: Silt fences slow runoff and capture sediment particles.
5. What is the purpose of a storm drain inlet protection device?
A. Increase runoff velocity
B. Prevent sediment and debris from entering storm drains
C. Raise pH levels
D. Eliminate erosion completely
© 2026 Academics_Excellence. All Rights Reserved.
,Answer: B
Rationale: Inlet protection reduces pollutants entering drainage systems.
6. Which agency administers the National Pollutant Discharge Elimination
System (NPDES)?
A. EPA
B. FEMA
C. OSHA
D. USDA
Answer: A
Rationale: The Environmental Protection Agency oversees the NPDES
permitting program.
7. Which condition most increases erosion potential?
A. Stabilized vegetation
B. Bare disturbed soil
C. Low rainfall intensity
D. Flat terrain only
Answer: B
Rationale: Exposed soil is highly vulnerable to erosion from rainfall and
runoff.
© 2026 Academics_Excellence. All Rights Reserved.
, 8. What is the purpose of sediment basins?
A. Increase runoff speed
B. Capture and settle suspended sediments
C. Remove dissolved oxygen
D. Add nutrients to runoff
Answer: B
Rationale: Sediment basins reduce suspended solids before discharge.
9. Which inspection activity is most important after a storm event?
A. Checking BMP effectiveness and damage
B. Repainting signs only
C. Measuring pipe color
D. Reducing inspection frequency
Answer: A
Rationale: Storm events may damage controls and create new erosion
issues.
10. Which pollutant commonly originates from vehicle leaks?
A. Oil and grease
B. Sand only
C. Oxygen
D. Alkalinity
© 2026 Academics_Excellence. All Rights Reserved.
