AWWA Operational Efficiency and Maintenance 5

Question 1

What is the primary purpose of a Computerized Maintenance Management System (CMMS) in water utility operations?

Accepted Answer

To track work orders, asset histories, and schedule preventive maintenance

Answer

A CMMS centralizes work order management, asset maintenance histories, and scheduled PM tasks, improving maintenance efficiency and record-keeping.

Question 2

During a routine pump curve test, the measured flow at shutoff head is higher than the design curve. What does this indicate?

Accepted Answer

The pump impeller diameter may need to be trimmed or the design data is incorrect

Answer

Higher than expected head suggests the impeller may be oversized or the installed impeller differs from what the design curve assumed, requiring trimming or verification.

Question 3

Which water loss control activity is most effective for identifying and locating unreported leaks in a distribution system?

Accepted Answer

Active leakage control using acoustic leak detection equipment

Answer

Active leakage control using acoustic correlators and listening equipment locates unreported leaks before they surface, reducing real water losses.

Question 4

A utility notices that booster pump runtime increases significantly each summer without a corresponding increase in customer demand. What is the most likely cause?

Accepted Answer

Increased system leakage worsened by higher pressures during irrigation season

Answer

Summer irrigation increases system pressures, which amplifies leak flow rates, requiring booster pumps to run longer to maintain storage levels.

Question 5

What does the AWWA M36 manual primarily address?

Accepted Answer

Water audits and loss control

Answer

AWWA M36 (Water Audits and Loss Control Programs) provides the framework and methodology for conducting standardized water audits and implementing loss control programs.

(AWWA) American Water Works Association Practice Test

(AWWA) American Water Works Association Practice Test

AWWA Operational Efficiency and Maintenance 5