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Environmental Engineering

Environmental Engineering
Composting and lagooning are the methods of

Filtration
Sludge digestion
Sludge disposal
Sedimentation

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Environmental Engineering
Activated carbon is used for

Removing odours
Removing hardness
Removing corrosiveness
Disinfection

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Environmental Engineering
Generally the detention period for grit chambers is kept as

1 minute
5 minutes
12 hours
24 hours

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Environmental Engineering
Settling velocity increases with

Temperature of liquid
Specific gravity of solid particles
Depth of tank
Size of particles

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Environmental Engineering
The maximum efficiency of BOD removal is achieved in

Oxidation ditch
Aerated lagoons
Oxidation pond
Trickling filters

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Environmental Engineering
The settling velocity of a particle in a sedimentation tank increases if

None of these
The depth of tank is decreased
Particle size is decreased
The surface area of tank is increased

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MORE MCQ ON Environmental Engineering

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