Civil Engineering · all questions

Environmental Engineering
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148

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Q141

If Biochemical oxygen demand (BOD) of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is

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Q142

The specific gravity of sewage is

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Q143

The effective size of sand particles used in slow sand filters is

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Q144

Chlorine demand of water is equal to

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Q145

Corrosion in concrete sewers is caused by

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Q146

The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle, is

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Q147

The suitable layout of a distribution system for irregularly growing town is

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Q148

Assertion A: The consumption of water increases with increase in the distribution pressure.
Reason R: Higher distribution pressure causes more loss and waste of water
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