AWWA PIPELINE INSPECTION TECHNICIAN
CERTIFICATION EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
|INSTANT DOWNLOAD PDF
1. What is the primary purpose of pipeline inspection?
A. Increase water pressure
B. Identify defects and ensure system integrity
C. Reduce water treatment costs
D. Replace old pipes
Rationale: Pipeline inspection focuses on assessing condition
and detecting issues before failure.
Correct Answer: B. Identify defects and ensure system integrity
2. Which tool is commonly used for internal pipe inspection?
A. pH meter
B. CCTV camera system
C. Chlorine analyzer
D. Flow regulator
Rationale: CCTV systems allow visual inspection inside
pipelines.
Correct Answer: B. CCTV camera system
,3. What does pipe corrosion primarily result from?
A. High flow velocity only
B. Chemical and electrochemical reactions
C. Low water demand
D. Excess pressure alone
Rationale: Corrosion is caused by chemical/electrochemical
interactions between pipe material and water/soil.
Correct Answer: B. Chemical and electrochemical reactions
4. What is a common sign of pipeline leakage?
A. Increased chlorine levels
B. Drop in system pressure
C. Higher water temperature
D. Reduced turbidity
Rationale: Leaks typically cause pressure loss in distribution
systems.
Correct Answer: B. Drop in system pressure
5. What is the main function of pipeline pigging?
A. Measure water hardness
B. Clean and inspect pipelines
C. Increase pipe diameter
D. Chlorinate water
,Rationale: Pigging removes debris and can assist inspection
inside pipelines.
Correct Answer: B. Clean and inspect pipelines
6. Which material is most resistant to corrosion in pipelines?
A. Cast iron
B. Steel
C. PVC
D. Mild steel
Rationale: PVC is non-metallic and highly resistant to corrosion.
Correct Answer: C. PVC
7. What is infiltration in pipelines?
A. Water loss through evaporation
B. Groundwater entering the pipe system
C. Chemical dosing into pipelines
D. Air entering treatment tanks
Rationale: Infiltration refers to unwanted groundwater
entering pipelines.
Correct Answer: B. Groundwater entering the pipe system
8. What does CCTV inspection primarily detect?
, A. Chemical contamination
B. Structural defects and blockages
C. Water hardness
D. Chlorine concentration
Rationale: CCTV identifies cracks, blockages, and structural
issues.
Correct Answer: B. Structural defects and blockages
9. Which condition promotes pipe scaling?
A. Soft water
B. Hard water with high mineral content
C. Low temperature
D. High velocity flow
Rationale: Hard water deposits calcium and magnesium scale
inside pipes.
Correct Answer: B. Hard water with high mineral content
10. What is the purpose of pressure testing pipelines?
A. Increase flow rate
B. Detect leaks and ensure integrity
C. Improve water taste
D. Measure turbidity
CERTIFICATION EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
|INSTANT DOWNLOAD PDF
1. What is the primary purpose of pipeline inspection?
A. Increase water pressure
B. Identify defects and ensure system integrity
C. Reduce water treatment costs
D. Replace old pipes
Rationale: Pipeline inspection focuses on assessing condition
and detecting issues before failure.
Correct Answer: B. Identify defects and ensure system integrity
2. Which tool is commonly used for internal pipe inspection?
A. pH meter
B. CCTV camera system
C. Chlorine analyzer
D. Flow regulator
Rationale: CCTV systems allow visual inspection inside
pipelines.
Correct Answer: B. CCTV camera system
,3. What does pipe corrosion primarily result from?
A. High flow velocity only
B. Chemical and electrochemical reactions
C. Low water demand
D. Excess pressure alone
Rationale: Corrosion is caused by chemical/electrochemical
interactions between pipe material and water/soil.
Correct Answer: B. Chemical and electrochemical reactions
4. What is a common sign of pipeline leakage?
A. Increased chlorine levels
B. Drop in system pressure
C. Higher water temperature
D. Reduced turbidity
Rationale: Leaks typically cause pressure loss in distribution
systems.
Correct Answer: B. Drop in system pressure
5. What is the main function of pipeline pigging?
A. Measure water hardness
B. Clean and inspect pipelines
C. Increase pipe diameter
D. Chlorinate water
,Rationale: Pigging removes debris and can assist inspection
inside pipelines.
Correct Answer: B. Clean and inspect pipelines
6. Which material is most resistant to corrosion in pipelines?
A. Cast iron
B. Steel
C. PVC
D. Mild steel
Rationale: PVC is non-metallic and highly resistant to corrosion.
Correct Answer: C. PVC
7. What is infiltration in pipelines?
A. Water loss through evaporation
B. Groundwater entering the pipe system
C. Chemical dosing into pipelines
D. Air entering treatment tanks
Rationale: Infiltration refers to unwanted groundwater
entering pipelines.
Correct Answer: B. Groundwater entering the pipe system
8. What does CCTV inspection primarily detect?
, A. Chemical contamination
B. Structural defects and blockages
C. Water hardness
D. Chlorine concentration
Rationale: CCTV identifies cracks, blockages, and structural
issues.
Correct Answer: B. Structural defects and blockages
9. Which condition promotes pipe scaling?
A. Soft water
B. Hard water with high mineral content
C. Low temperature
D. High velocity flow
Rationale: Hard water deposits calcium and magnesium scale
inside pipes.
Correct Answer: B. Hard water with high mineral content
10. What is the purpose of pressure testing pipelines?
A. Increase flow rate
B. Detect leaks and ensure integrity
C. Improve water taste
D. Measure turbidity
