AWWA Water Loss Control Certification Exam
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
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1. The primary objective of a water loss control program is to
A. Increase system pressure
B. Reduce non-revenue water
C. Eliminate all customer complaints
D. Maximize water production
Reducing non-revenue water improves financial performance and
system efficiency.
2. In the AWWA Water Audit Method, which category includes
meter inaccuracies and data handling errors?
A. Real losses
B. Apparent losses
C. Authorized consumption
D. Unavoidable losses
Apparent losses arise from inaccuracies and administrative issues
rather than physical leakage.
3. Non-revenue water consists of
A. Only physical leaks
B. Only theft
C. Authorized and unauthorized water that does not produce
revenue
D. Only meter errors
, Non-revenue water includes all water that does not generate
income.
4. Which component is considered a real loss?
A. Meter under-registration
B. Leaking transmission main
C. Billing error
D. Data transfer error
Real losses are physical losses from the distribution system.
5. The Infrastructure Leakage Index (ILI) compares
A. Total losses to billed consumption
B. Current annual real losses to unavoidable annual real losses
C. Apparent losses to real losses
D. Revenue to expenses
ILI is a performance indicator for real loss management.
6. Which data input has the greatest impact on water audit
accuracy?
A. Number of service connections
B. Volume from source (production)
C. Pipe material
D. Number of valves
Production volume errors affect the entire water balance.
7. Authorized unbilled consumption may include
A. Illegal connections
B. Meter inaccuracies
C. Firefighting and flushing
D. Data errors
These uses are permitted but not billed.
, 8. A night flow analysis is primarily used to identify
A. Meter inaccuracies
B. Hidden leaks
C. Billing errors
D. Pressure zones
Minimum night flows highlight leakage when legitimate use is
low.
9. Which pressure condition generally increases leakage rates?
A. Low pressure
B. High pressure
C. Intermittent pressure
D. Zero pressure
Leakage flow increases as pressure rises.
10. The first step in developing a water loss control program is
to
A. Replace all meters
B. Complete a validated water audit
C. Install leak noise loggers
D. Reduce pressure system-wide
A validated audit establishes the baseline.
11. Apparent losses directly affect
A. System pressure
B. Utility revenue
C. Pipe failure rates
D. Fire protection
They represent water delivered but not paid for.
12. Which activity best addresses apparent losses?
A. Pressure management
B. Meter testing and replacement
Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. The primary objective of a water loss control program is to
A. Increase system pressure
B. Reduce non-revenue water
C. Eliminate all customer complaints
D. Maximize water production
Reducing non-revenue water improves financial performance and
system efficiency.
2. In the AWWA Water Audit Method, which category includes
meter inaccuracies and data handling errors?
A. Real losses
B. Apparent losses
C. Authorized consumption
D. Unavoidable losses
Apparent losses arise from inaccuracies and administrative issues
rather than physical leakage.
3. Non-revenue water consists of
A. Only physical leaks
B. Only theft
C. Authorized and unauthorized water that does not produce
revenue
D. Only meter errors
, Non-revenue water includes all water that does not generate
income.
4. Which component is considered a real loss?
A. Meter under-registration
B. Leaking transmission main
C. Billing error
D. Data transfer error
Real losses are physical losses from the distribution system.
5. The Infrastructure Leakage Index (ILI) compares
A. Total losses to billed consumption
B. Current annual real losses to unavoidable annual real losses
C. Apparent losses to real losses
D. Revenue to expenses
ILI is a performance indicator for real loss management.
6. Which data input has the greatest impact on water audit
accuracy?
A. Number of service connections
B. Volume from source (production)
C. Pipe material
D. Number of valves
Production volume errors affect the entire water balance.
7. Authorized unbilled consumption may include
A. Illegal connections
B. Meter inaccuracies
C. Firefighting and flushing
D. Data errors
These uses are permitted but not billed.
, 8. A night flow analysis is primarily used to identify
A. Meter inaccuracies
B. Hidden leaks
C. Billing errors
D. Pressure zones
Minimum night flows highlight leakage when legitimate use is
low.
9. Which pressure condition generally increases leakage rates?
A. Low pressure
B. High pressure
C. Intermittent pressure
D. Zero pressure
Leakage flow increases as pressure rises.
10. The first step in developing a water loss control program is
to
A. Replace all meters
B. Complete a validated water audit
C. Install leak noise loggers
D. Reduce pressure system-wide
A validated audit establishes the baseline.
11. Apparent losses directly affect
A. System pressure
B. Utility revenue
C. Pipe failure rates
D. Fire protection
They represent water delivered but not paid for.
12. Which activity best addresses apparent losses?
A. Pressure management
B. Meter testing and replacement
