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WASTE WATER ENGINEERING

Waste Water Engineering
‘Cowl’ is provided at

Upper end of ventilating column
First step in manhole
Upper end of the manhole
Lower end of ventilating column

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Waste Water Engineering
The formula V = (1/n) r2/3

Kutter’s formula
Chezy’s formula
Manning’s formula
Bazin’s formula

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Waste Water Engineering
A drop manhole is provided if

None of these
A lamp is inserted to check obstruction
A sewer drops from a height
A branch sewer joins the main sewer at higher level

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Waste Water Engineering
The most widely used pump for lifting sewage is

Centrifugal pump
Reciprocating pump
Pneumatic ejector
Air pressure pump

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Waste Water Engineering
The non-clog pump which permits solid matter to pass out with the liquid sewage, is

Centrifugal pump
None of these
Pneumatic ejector
Reciprocating pump

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