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Waste Water Engineering

Waste Water Engineering
For estimating the peak run off the rational formula Q = 0.0278 KpA was evolved by

Kinchling
All listed here
Lloyd Davis
Frubling

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Waste Water Engineering
Disposal to sewage in large cities, is done in

Dilution
Irrigation
Purification
Oxidation

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

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Waste Water Engineering
The minimum diameter of sewer to be adopted is

10 cm
15 cm
12.5 cm
25 cm

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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
0.68 m
1.76 m

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Waste Water Engineering
The most efficient cross section of sewers in a separate sewerage system is

Rectangular
Parabolic
New egged
Circular

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