WATER DISTRIBUTION LEVEL 2 2025 BRAND NEW ACTUAL EXAM WITH ANSWERS.

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WATER DISTRIBUTION LEVEL 2 2025
BRAND NEW ACTUAL EXAM WITH
ANSWERS.



What are the responsibilities of water distribution system
operators? - correct answer --deliver safe pleasant drinking water
- make sure adequate amount of water and pressure are available
during emergencies




Why does surface water require treatment? - correct answer --To
remove,kill, or inactivate diease causing organisms
-to remove suspended and dissolved materials




Which factors influence reserve storage requirements? - correct
answer -Alternative water supply
Fire insurance regulations
Future growth and development demand
Standby requirements

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Which items are abnormal operating conditions? - correct answer
-Broken or out of service pumps
Excessive water demands
Stale water in tanks




Which of the following items are possible causes of rates and
odors in storage tanks and distribution systems? - correct answer
-Algal growth
Dead ends
High chlorine residual




What causes water hammer - correct answer -Operating valves to
quickly
Rapid increase or decrease in water flow
Turning pumps on and off




Which factors influence distribution system preformance - correct
answer -Demands of water
Fire
Potential service interruption
Protection against unauthorized entry