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Environmental Engineering

Environmental Engineering
The devices which are installed for drawing water from the sources are called

Aquiclude
Intakes
Filters
Aquifers

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Environmental Engineering
Which of the following is not a water borne disease?

Typhoid
Cholera
Dysentery
Malaria

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

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

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Environmental Engineering
The slope of sewer shall be

Zero
Steeper than 1 in 20
Given in the direction opposite to natural slope of ground
Given in the direction of natural slope of ground

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

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

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Environmental Engineering
Alum as a coagulant is found to be most effective when pH range of water is

6 to 8
4 to 6
8 to 10
2 to 4

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