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Waste Water Engineering

Waste Water Engineering
Pathogens (or pathogenic bacterias) in water may cause

Dysentery
All listed here
Typhoid
Cholera

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Waste Water Engineering
The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is

20 m
30 m
75 m
45 m

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Waste Water Engineering
Aerobic bacterias

All of these
Flourish in the presence of free oxygen
Oxidise organic matter in sewage
Consume organic matter as their food

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Waste Water Engineering
The detention period for plain sedimentation water tanks, is usually

4 to 8 hours
16 to 24 hours
24 to 36 hours
8 to 16 hours

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Waste Water Engineering
Discrete or granular particles change their

Weight
None of these
Shape
Size

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

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

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MORE MCQ ON Waste Water Engineering

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