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Waste Water Engineering

Waste Water Engineering
The sewer which received discharge from two or more main sewers, is known as

A trunk sewer
A main sewer
An outfall sewer
An intercepting sewer

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Waste Water Engineering
Pathogens (or pathogenic bacterias) in water may cause

Cholera
Dysentery
All listed here
Typhoid

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Waste Water Engineering
The non-clog pump which permits solid matter to pass out with the liquid sewage, is

Centrifugal pump
Pneumatic ejector
None of these
Reciprocating pump

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Waste Water Engineering
In a fully mechanised composting plant, involves

Mechanized receipt
Mechanized pulverising of refuse
Mechanized segregation
All of these

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

Diesel vapours
Carbondioxide gas
Hydrogen sulphide
Methane gas

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Waste Water Engineering
The coagulant which is generally not used for treating the sewage, is

Ferric chloride
Ferric sulphate
Alum
Chlorinated coppers

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