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Waste Water Engineering

Waste Water Engineering
For evaporation and measurement of settable solids, the apparatus used, is

A test tube
A jar
A breaker
An Imhoff cone

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

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

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Waste Water Engineering
Inter-distance between ventilation columns in a sewer line is kept

150 m to 300 m
50 m to 100 m
25 to 50 m
100 m to 150 m

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Waste Water Engineering
In SI units the power of sound is represented in

Newtons
Joules
Kgs
Watts

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Waste Water Engineering
Rate of flow of sewage is generally assumed

At 150 litres per capita
More than the rate of water supply
Equal to the rate of water supply
Less than the rate of water supply

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Waste Water Engineering
In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is

D/1
D/2
D/4
D/3

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