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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
Lloyd Davis
All listed here
Frubling

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Waste Water Engineering
For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of

120 cm
140 cm
160 cm
100 cm

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Waste Water Engineering
If the diameter of a sewer is 150 mm, the gradient required for generating self cleansing velocity, is

None of these
1 in 120
1 in 60
1 in 100

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Waste Water Engineering
The minimum recommended diameter of sewers, is

20 cm
15 cm
10 cm
5 cm

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Waste Water Engineering
Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is?

Centrifugal pump
Reciprocating pump
Pneumatic ejector
None of these

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Waste Water Engineering
A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is

0.40 m/sec
0.30 m/sec
0.45 m/sec
0.35 m/sec

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