Environmental Engineering
Most suitable section of sewer in separate sewage system is

Rectangular section
Standard form of egg shaped sewer
Circular section
Modified egg shaped section

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Environmental Engineering
Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters.Reason R: The sand used in slow sand filters is finer than that in rapid sand filtersSelect your answer based on the coding system given below:

Both A and R is true but R is not the correct explanation of A
A is true but R is false
Both A and R is true and R is the correct explanation of A
A is false but R is true

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Environmental Engineering
Assertion A: The consumption of water increases with increase in the distribution pressure.Reason R: Higher distribution pressure causes more loss and waste of waterSelect your answer according to the coding system given below

Both A and R is true and R is the correct explanation of A
A is true but R is false
A is false but R is true
Both A and R is true but R is not the correct explanation of A

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Environmental Engineering
Sludge volume index is defined as the ratio of

Percentage of suspended solids by weight to percentage of sludge by volume
Percentage of sludge by volume to percentage of total solids by weight
Percentage of total solids by weight to percentage of sludge by volume
Percentage of sludge by volume to percentage of suspended solids by weight

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