The egg-shaped sewer is placed, such that:
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A.
the velocity of flow is always lesser than the velocity of flow in hydraulically equivalent circular sewer
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B.
the larger base has to support the weight of the upper smaller section
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C.
the smaller base has to support the weight of the upper broader section
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D.
the base and upper section has the same area and the middle section has large area
Correct Answer:
C. the smaller base has to support the weight of the upper broader section
Explanation:
The correct answer is the smaller base has to support the weight of the upper broader section.
Egg-shaped sewers are designed with a narrow bottom to maintain higher flow velocities during periods of low discharge, which helps prevents the accumulation of sediment. When installing these sewers, they are positioned so that the smaller, narrower end forms the base. This orientation ensures that the broader upper portion, which carries the majority of the weight and volume during peak flow, is supported by the narrower foundation. This specific structural arrangement is essential for maintaining both the hydraulic efficiency and the physical stability of the sewer system under varying load conditions.
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