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Waste Water Engineering

Waste Water Engineering
The average temperature of sewage in India, is

15°C
25°C
10°C
20°C

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Waste Water Engineering
The underground sewers are more subjected to

Bending force
Tensile force
Shearing force
Compressive force

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Waste Water Engineering
The maximum diameter of sewers adopted in the designs is

4.0 m
2.0 m
3.0 m
1.0 m

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Waste Water Engineering
In a fully mechanised composting plant, involves

Mechanized segregation
All of these
Mechanized receipt
Mechanized pulverising of refuse

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Waste Water Engineering
A safety lamp when inserted in the upper portion of a manhole causes flames. It indicates the presence of

Petrol vapours
Carbondioxide gas
Hydrogen sulphide gas
Methane gas

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Waste Water Engineering
The detention time of a circular tank of diameter d and water depth H, for receiving the sewage Q per hour, is

d (0.022d + 0.085H)/Q
d (0.285d + 0.011H)/Q
d (0.785d + 0.011H)/Q
d² (0.011d + 0.785H)/Q

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