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Waste Water Engineering

Waste Water Engineering
Which one of the following tests is used for testing sewer pipes?

Ball test
All of these
Water test
Mirror test

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Waste Water Engineering
Bottom openings 15 cm × 15 cm in the standing baffle wall are provided

50 cm c/c
22.5 cm c/c
30 cm c/c
15 cm c/c

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Waste Water Engineering
The gradient of sewers depends upon

Diameter of the sewer
All listed here
Discharge
Velocity of flow

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Waste Water Engineering
The liquid wastes from kitchens, bath rooms and wash basins, is not called

Sewage
Sullage
Liquid waste
None of these

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Waste Water Engineering
Water content of sewage is about

0.95
0.999
0.99
0.9

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Waste Water Engineering
The self-cleansing velocity of water flowing through pipe lines, is

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

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