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Waste Water Engineering

Waste Water Engineering
1000 kg of sewage contains

0.225 kg in solution
Both A and C of above
0.112 kg in suspension
0.112 kg in solution

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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

A heap
None of these
Windrow
Plateau

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Waste Water Engineering
For detecting the nitrites in the sewage, the matching colour may be developed by adding

Phenol-di -sulphuric acid potassium hydroxide
None of these
Potassium permanganate
Sulphuric acid and napthamine

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Waste Water Engineering
The sewer which received discharge from two or more main sewers, is known as

A main sewer
An intercepting sewer
A trunk sewer
An outfall sewer

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Waste Water Engineering
The maximum depth of sedimentation tanks, is kept

3.5 m
4 m
3 m
4.5 m

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Waste Water Engineering
Design period of 40 to 50 years is adopted for

Trunk sewers
Branch sewers
All listed here
Main sewers

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