AWWA Operational Efficiency and Maintenance

Question 1

What is the purpose of performing a unidirectional flushing (UDF) operation in water distribution systems?

Accepted Answer

To remove sediment and stagnant water

Answer

To increase water pressure

Answer

To disinfect the pipeline

Answer

To measure water quality

Question 2

What is the recommended frequency for calibrating flow meters in a water distribution system?

Accepted Answer

Annually

Answer

Monthly

Answer

Quarterly

Answer

Every 5 years

Question 3

What is the common method for detecting leaks in a water distribution system?

Accepted Answer

Acoustic monitoring

Answer

Pressure gauge testing

Answer

Visual inspection

Answer

Water quality sampling

Question 4

What is the recommended water velocity for efficient pipeline cleaning during maintenance?

Accepted Answer

5 ft/s

Answer

1 ft/s

Answer

2.5 ft/s

Answer

10 ft/s

Question 5

What is the primary purpose of performing valve exercising in a water distribution system?

Accepted Answer

To prevent valve seizing and ensure operability

Answer

To maintain pressure balance

Answer

To monitor water quality changes

Answer

To test for leaks in pipelines