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Environmental Engineering

Environmental Engineering
Orthotolidine test is used for determination of

Biochemical oxygen demand
Dose of coagulant
Dissolved oxygen
Residual chlorine

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Environmental Engineering
The type of valve, which is provided on the suction pipe in a tube-well, is

Pressure relief valve
Reflux valve
Sluice valve
Air relief valve

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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
Equal to that of slow sand filters
Greater than that of rapid sand filters
Less than that of slow sand filters

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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
As compared to geometrical increase method of forecasting population, arithmetical increase method gives

Lesser value
Higher value
Same value
Accurate value

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Environmental Engineering
The design discharge for the combined sewer system shall be taken as

Rainfall + 6 DWF
Rainfall + 2 DWF
Equal to rainfall
Rainfall + DWF

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MORE MCQ ON Environmental Engineering

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