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Waste Water Engineering

Waste Water Engineering
The minimum diameter of sewer to be adopted is

15 cm
10 cm
12.5 cm
25 cm

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

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

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Waste Water Engineering
Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is?

None of these
Centrifugal pump
Reciprocating pump
Pneumatic ejector

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Waste Water Engineering
If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains

Methane
Hydrogen sulphide
Oxygen
Carbon dioxide

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Waste Water Engineering
To maintain aerobic biological activity, the moisture content of the compost mass should be about

0.5
0.6
0.55
0.45

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Waste Water Engineering
The sewer pipe which carries sewage from a building for immediate disposal is

Intercepting sewer
Lateral sewer
Main sewer
House sewer

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