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← TechnologyWhich consequence results when rapid control valve cycling occurs in a large-scale municipal water distribution network?
A)Increased pipe fatigue from water hammer✓
B)Reduced chlorine residence and disinfection ability
C)Elevated dissolved oxygen increasing pipe corrosion
D)Decreased pumping efficiency through reduced pressure
💡 Explanation
Increased pipe fatigue is a consequence because rapid cycling causes repetitive pressure surges due to the water hammer effect. These surges induce cyclic stress exceeding material fatigue limits, therefore fracturing the pipes, rather than the water experiencing increased oxygen causing corrosion effects.
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