In sewerage, manholes are located at every __________
A
50-60 m
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B
90-100 m
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C
100-110 m
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D
20-25 m
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Solution
The correct option is A 50-60 m Manholes are provided at every 50 to 60 m distance in the main sewer pipeline. It is also provided at the junction of the pipeline or at the change of direction of the sewer line.