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Environmental Engineering

Environmental Engineering
The suitable layout of a distribution system for irregularly growing town is

Grid iron system
Ring system
Radial system
Dead end system

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Environmental Engineering
Settling velocity increases with

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

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Environmental Engineering
The rate of filtration in slow sand filters in million litres per day per hectare is about

1400 to 1500
500 to 600
100 to 150
50 to 60

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Environmental Engineering
Activated carbon is used for

Removing odours
Removing corrosiveness
Removing hardness
Disinfection

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Environmental Engineering
The phenolic compounds in public water supply should not be more than

0.01 ppm
0.0001 ppm
0.001 ppm
0.1 ppm

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Environmental Engineering
Ground water is usually free from

Both suspended and dissolved impurities
Dissolved impurities
None of these
Suspended impurities

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MORE MCQ ON Environmental Engineering

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