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Environmental Engineering

Environmental Engineering
As compared to cast iron pipes, steel pipes are

Less susceptible to corrosion
Heavier
Stronger
Costlier

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Environmental Engineering
The rate of Alteration of pressure filters is

In between the filtration rate of slow sand filters and rapid sand filters
Less than that of slow sand filters
Equal to that of slow sand filters
Greater than that of rapid sand filters

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Environmental Engineering
The working conditions in imhoff tanks are

Aerobic in lower compartment and anaerobic in upper compartment
anaerobic in lower compartment and aerobic in upper compartment
Anaerobic only
Aerobic only

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Environmental Engineering
Sewerage system is usually designed for

26 years
28 years
27 years
25 years

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Environmental Engineering
The length of rectangular sedimentation tank should not be more than (Where ‘B’ is the width of the tank)

8B
2B
4B
B

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Environmental Engineering
Settling velocity increases with

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

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MORE MCQ ON Environmental Engineering

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