Waste Water Engineering MCQ Questions & Answers

If q is the average sewage flow from a city of population P, the maximum sewage flow

A) $${\text{Q}} = \left( {\frac{{4 + \sqrt {\text{P}} }}{{18 + \sqrt {\text{P}} }}} \right){\text{q}}$$ B) $${\text{Q}} = \left( {\frac{{18 + {\text{P}}}}{{4 + \sqrt {\text{P}} }}} \right){\text{q}}$$ C) $${\text{Q}} = \left( {\frac{{18 + \sqrt {\text{P}} }}{{4 + \sqrt {\text{P}} }}} \right){\text{q}}$$ D) $${\text{Q}} = \left( {\frac{{5 + \sqrt {\text{P}} }}{{15 + \sqrt {\text{P}} }}} \right){\text{q}}$$

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Answer: Option C

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Fresh sewage may become stale in

A) One hour B) Two to three hours C) Three to four hours D) Six hours

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Answer: Option C

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The grit and silt of the grit chambers, may not be used for

A) Raising low lying areas by dumping B) Concreting C) Both A and B D) Neither A nor B

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Answer: Option B

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When drainage to sewage ratio is 20, the peak dry weather flow is

A) 20% of the design discharge B) Slightly less than 5% of the design discharge C) Slightly more than 5% of the design discharge D) None of these

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Answer: Option B

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The sewerage system consists of

A) House sewer B) Lateral sewer C) Branch sewer D) All of these

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Answer: Option D

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Waste Water Engineering MCQ Questions & Answers | Civil Engineering