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Environmental Engineering in CE

Environmental Engineering in CE
Reingleman chart is used for the evaluation of __________ pollution.

Noise
Water
Radioactive
Air

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Environmental Engineering in CE
The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is

Cavitation
Pipe vibrations
Boundary layer separation
Fluctuation in liquid flow

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Environmental Engineering in CE
Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream?

Chemical coagulation
Circular clarifier
Sedimentation tank
Mechanical flocculation

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Environmental Engineering in CE
The main industrial source of emission of hydrogen sulphide air pollutant is

Pulp and paper plant
Coal based thermal power plants
Metallurgical roasting & smelting plant
Petroleum refineries

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Environmental Engineering in CE
Operating principle of cyclone separator is based on the action of __________ dust particles.

Centrifugal force on
Diffusion of
Electrostatic force on
Gravitational force on

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Environmental Engineering in CE
In troposphere (the weather domain), the temperature 't' at height 'h' above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)

t = 0.0035h -15
t = 15 - 0.0065h
t = 15 + 0.0065h
t = 15 - 0.0035h

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