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Exam (elaborations)

WATER DISTRIBUTION LEVEL 2 2025 |NEW ACTUAL EXAM WITH ANSWERS

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WATER DISTRIBUTION LEVEL 2 2025 |NEW ACTUAL EXAM WITH ANSWERS

Institution
WATER DISTRIBUTION LEVEL 2
Course
WATER DISTRIBUTION LEVEL 2

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WATER DISTRIBUTION LEVEL 2 2025 |NEW
ACTUAL EXAM WITH ANSWERS



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
Quality of the water supply

, 2|Page




Why are thrust blocks installed - Correct-answer-To prevent leakage
To prevent separation of joints




What is the most positive type of backflow prevention available? - Correct-
answer-Air gap devices




When is a domestic water supply consider led to be of good quality? - Correct-
answer-Attractive taste and appearance
Distributed without undue corrosiveness
Cree of disease
Free of toxic chemicals




What of the following inorganic substances can be found in water? - Correct-
answer-Arsenic, lead, mercury, nitrate




Which of the following factors may cause water quality degradation in water
distribution systems? - Correct-answer-Biological growth
Corrosion
Cross connections
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Institution
WATER DISTRIBUTION LEVEL 2
Course
WATER DISTRIBUTION LEVEL 2

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Uploaded on
June 27, 2025
Number of pages
12
Written in
2024/2025
Type
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Contains
Questions & answers

Subjects

  • water distribution
  • water distribution level 2 2025 new actual exam
  • water distribution level 2 2025
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