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Waste Water Engineering

Waste Water Engineering
In SI units the power of sound is represented in

Newtons
Watts
Joules
Kgs

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Waste Water Engineering
It is customary to design a sewer for D.W.F. on the basis of

Four times the average demand
Twice the average demand
Thrice the average demand
Average demand

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Waste Water Engineering
Lead acetate test in sewer manhole is done to test the presence of

Methane gas
Carbondioxide gas
Diesel vapours
Hydrogen sulphide

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

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

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Waste Water Engineering
The rate of accumulation of sludge per person per year, is

10 litres
25 litres
15 litres
20 litres

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

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

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