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Waste Water Engineering

Waste Water Engineering
The rate of accumulation of sludge per person per year, is

20 litres
10 litres
15 litres
25 litres

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Waste Water Engineering
The sewer which resists sulphide corrosion, is

Cast iron sewer
Brick sewer
R.C. sewer
Lead sewer

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Waste Water Engineering
In R.C. sewer pipes, the percentage longitudinal reinforcement to the cross-sectional area of concrete is kept

5
0.25
2
10

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Waste Water Engineering
Drop manholes are the manholes

Without entry ladders
Having drains at different levels
Without manhole covers
With depths more than 3.5 m

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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 self-cleansing velocity of water flowing through pipe lines, is

1 metre/sec
0.5 metre/sec
0.25 metre/sec
2 metres/sec

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