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Waste Water Engineering

Waste Water Engineering
If is the diameter of upper circular portion, the overall depth of New Egg shaped sewer section, is

1.425 D
1.250 D
1.350 D
1.625 D

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Waste Water Engineering
When drainage to sewage ratio is 20, the peak dry weather flow is

Slightly less than 5% of the design discharge
None of these
Slightly more than 5% of the design discharge
20% of the design discharge

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Waste Water Engineering
The water carried sewerage system removes

Storm sewage
All listed here
Domestic sewage
Industrial sewage

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Waste Water Engineering
The settlement velocity of a solid (diameter 0.5 mm, specific gravity 1.75) in water having temperature 10°C, is

500 cm/sec
313.5 cm/sec
213.5 cm/sec
413.5 cm/sec

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Waste Water Engineering
Which one of the following resists hydrogen sulphide corrosion?

R.C.C.
Asbestos cement
Glazed stone wares
Glazed ware

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Waste Water Engineering
A rainfall may be classified as acidic if its pH value is less or equal to

5
6.5
6
7

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