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Waste Water Engineering

Waste Water Engineering
The flow velocity in detritus tanks is

0.09 m/sec
None of these
1.25 m/sec
0.05 m/sec

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Waste Water Engineering
The maximum diameter of sewers adopted in the designs is

2.0 m
3.0 m
1.0 m
4.0 m

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Waste Water Engineering
The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is

0.88 m
1.36 m
1.76 m
0.68 m

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Waste Water Engineering
5 days-biochemical oxygen demand (BOD5) is taken at a temperature of

20°C
0°C
15°C
25°C

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Waste Water Engineering
pH value of sludge during alkaline regression stage, is

Less than 7
More than 7
More than 6
Less than 6

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Waste Water Engineering
A manhole is generally provided at each

Change of gradient
Junction
All of these
Bend

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