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Waste Water Engineering

Waste Water Engineering
The discharge per unit plan area of a sedimentation tank, is generally called

All of these
Surface loading
Over flow velocity
Over flow rate

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Waste Water Engineering
In a sedimentation tank (length L, width B, depth D) the settling velocity of a particle for a discharge Q, is

Q/(L × D)
Q/(B × L)
Q/(B × D)
Q/L

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Waste Water Engineering
The first stage of neutral process of sludge digestion, is

Acid fermentation
Acid regression
Alkaline fermentation
None of these

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Waste Water Engineering
The sewerage system consists of

House sewer
Lateral sewer
All of these
Branch sewer

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Waste Water Engineering
Clogging of sewers, is caused due to

Silting
Low discharge
Greasy and oily matters
All of these

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Waste Water Engineering
Self-cleansing velocity is

Velocity of water at flushing
Velocity at which no accumulation remains in the drains
Velocity of water in a pressure filter
Velocity at dry weather flow

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