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Waste Water Engineering

Waste Water Engineering
If the grit in grit chambers is 4.5 million litres per day, its cleaning is done

Electrically
Hydraulically
Mechanically
Manually

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Waste Water Engineering
The rational formula for peak drainage discharge, was evolved by

Fruhling
Kuichling
All of these
Lloyd David

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Waste Water Engineering
If is the diameter of upper circular portion, the overall depth of a standard egg shaped section, is

1.5 D
1.15 D
1.25 D
1.75 D

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Waste Water Engineering
For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is

Cement concrete sewers
Cast iron sewers
Glazed bricks sewers
Stone ware sewers

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Waste Water Engineering
The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is

Vs = 218 (Gs – Gw)d [(3T + 70)/100]
Vs = 418 (Gs – Gw)d² [(3T + 70)/100]
Vs = 418 (Gs – Gw) d [(3T + 70)/100]
Vs = 218 (Gs – Gw)d² [(3T + 70)/100]

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Waste Water Engineering
The gas evolved in sewers is

Methane
All of these
Hydrogen sulphide
Carbondioxide

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MORE MCQ ON Waste Water Engineering

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