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Environmental Engineering

Environmental Engineering
The velocity of flow of water in a sedimentation tank is about

15 to 30 cm/sec
5 to 10 cm/sec
15 to 30 cm/hour
15 to 30 cm/minute

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Environmental Engineering
Orthotolidine test is used for determination of

Dissolved oxygen
Biochemical oxygen demand
Residual chlorine
Dose of coagulant

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

Aquiclude
Aquifers
Intakes
Filters

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Environmental Engineering
Sewerage system is usually designed for

27 years
28 years
26 years
25 years

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Environmental Engineering
The specific gravity of sewage is

Slightly less than 1
Much greater than 1
Slightly greater than 1
Equal to 1

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Environmental Engineering
The gas from sludge digestion tank is mainly composed of

Nitrogen
Methane
Hydrogen sulphide
Carbon dioxide

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MORE MCQ ON Environmental Engineering

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