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Waste Water Engineering

Waste Water Engineering
15 cumecs, the depth d and width are related by For drains up to

d = 0.5 B
B = 0.5 d
B = 0.2 d
d = 0.2 B

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Waste Water Engineering
The normal values of over flow rates for sedimentation tanks using coagulant, ranges between

25,000 to 35,000 litres/sqm/day
40,000 to 50,000 litres/sqm/day
80,000 to 100,000 litres/sqm/day
50,000 to 60,000 litres/sqm/day

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Waste Water Engineering
The layers of vegetable wastes and night soil alternatively piled above the ground to form a mound, is called

Plateau
A heap
None of these
Windrow

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Waste Water Engineering
Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is?

None of these
Pneumatic ejector
Centrifugal pump
Reciprocating pump

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Waste Water Engineering
The settlement of a particle in sedimentation tank, is affected by

All listed here
Viscosity of water
Velocity of flow
Size and shape of solid

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Waste Water Engineering
Depletion of ozone layer in the outer atmosphere may cause

Bronchitis
Lung cancer
Heart disorder
Skin cancer

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