AWWA WATER SYSTEM OPERATIONS AND
MAINTENANCE CERTIFICATION EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS Q&A
2026 |INSTANT DOWNLOAD PDF
1. Which is the primary purpose of a water distribution
system?
A. Generate electricity
B. Deliver safe drinking water to consumers
C. Treat wastewater
D. Store chemicals
Rationale: Distribution systems transport treated water to
users.
Correct answer: B
2. What is the main function of a water pump?
A. Increase water pressure and flow
B. Remove contaminants
C. Measure water quality
D. Store water
Rationale: Pumps move water through the system.
Correct answer: A
3. What does turbidity in water indicate?
A. Water temperature
B. Clarity of water
C. Electrical conductivity
,D. pH level
Rationale: Turbidity measures cloudiness caused by particles.
Correct answer: B
4. Which chemical is commonly used for disinfection?
A. Chlorine
B. Sodium chloride
C. Calcium carbonate
D. Oxygen
Rationale: Chlorine kills pathogens in water.
Correct answer: A
5. What is the purpose of a valve in a water system?
A. Increase hardness
B. Control water flow
C. Measure pressure
D. Remove bacteria
Rationale: Valves regulate flow direction and volume.
Correct answer: B
6. What does a water meter measure?
A. Water temperature
B. Water pressure
C. Water usage volume
D. Water color
Rationale: Meters track consumption.
Correct answer: C
7. What is backflow?
A. Normal forward water flow
, B. Reverse flow of water into system
C. Water treatment process
D. Pump operation
Rationale: Backflow can contaminate potable water.
Correct answer: B
8. What is the purpose of a storage reservoir?
A. Increase chlorine
B. Store treated water
C. Remove sediments
D. Heat water
Rationale: Reservoirs balance demand and supply.
Correct answer: B
9. What is corrosion in pipes?
A. Growth of bacteria
B. Chemical degradation of metal
C. Water freezing
D. Pressure increase
Rationale: Corrosion damages pipe material.
Correct answer: B
10. What is the function of filtration?
A. Add minerals
B. Remove suspended particles
C. Increase flow
D. Heat water
Rationale: Filtration improves water clarity.
Correct answer: B
MAINTENANCE CERTIFICATION EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS Q&A
2026 |INSTANT DOWNLOAD PDF
1. Which is the primary purpose of a water distribution
system?
A. Generate electricity
B. Deliver safe drinking water to consumers
C. Treat wastewater
D. Store chemicals
Rationale: Distribution systems transport treated water to
users.
Correct answer: B
2. What is the main function of a water pump?
A. Increase water pressure and flow
B. Remove contaminants
C. Measure water quality
D. Store water
Rationale: Pumps move water through the system.
Correct answer: A
3. What does turbidity in water indicate?
A. Water temperature
B. Clarity of water
C. Electrical conductivity
,D. pH level
Rationale: Turbidity measures cloudiness caused by particles.
Correct answer: B
4. Which chemical is commonly used for disinfection?
A. Chlorine
B. Sodium chloride
C. Calcium carbonate
D. Oxygen
Rationale: Chlorine kills pathogens in water.
Correct answer: A
5. What is the purpose of a valve in a water system?
A. Increase hardness
B. Control water flow
C. Measure pressure
D. Remove bacteria
Rationale: Valves regulate flow direction and volume.
Correct answer: B
6. What does a water meter measure?
A. Water temperature
B. Water pressure
C. Water usage volume
D. Water color
Rationale: Meters track consumption.
Correct answer: C
7. What is backflow?
A. Normal forward water flow
, B. Reverse flow of water into system
C. Water treatment process
D. Pump operation
Rationale: Backflow can contaminate potable water.
Correct answer: B
8. What is the purpose of a storage reservoir?
A. Increase chlorine
B. Store treated water
C. Remove sediments
D. Heat water
Rationale: Reservoirs balance demand and supply.
Correct answer: B
9. What is corrosion in pipes?
A. Growth of bacteria
B. Chemical degradation of metal
C. Water freezing
D. Pressure increase
Rationale: Corrosion damages pipe material.
Correct answer: B
10. What is the function of filtration?
A. Add minerals
B. Remove suspended particles
C. Increase flow
D. Heat water
Rationale: Filtration improves water clarity.
Correct answer: B
