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Waste Water Engineering

Waste Water Engineering
Pick up the incorrect size of stone ware sewers

52.5 cm
67.5 cm
None of these
82.5 cm

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Waste Water Engineering
For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of

100 cm
160 cm
120 cm
140 cm

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Waste Water Engineering
If D is the diameter of a circular sewer and D’ is the top horizontal diameter of an equivalent egg shaped section, the relationship which holds good, is

D’ = 0.74 D
D’ = 0.94 D
D’ = 0.64 D
D’ = 0.84 D

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Waste Water Engineering
The following is the physical characteristic of sewage

Turbidity
Odour
All listed here
Colour

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Waste Water Engineering
The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is

0.05554 cumec
0.0556 cumec
0.05556 cumec
0.05552 cumec

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Waste Water Engineering
Flocculated particles do not change their

Size
Shape
Weight
None of these

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