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Environmental Engineering in CE

Environmental Engineering in CE
Soluble silica present in boiler feed water can be removed by

Filtration
Coagulation
Preheating it
Anion exchanger

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Environmental Engineering in CE
Exposure to small amount of __________ results in high blood pressure & heart disease in human beings.

Asbestos
Cadmium
Mercury
Hydrogen sulphide

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Environmental Engineering in CE
In large thermal power stations very fine particulates present in flue gas are removed by

Wet scrubber
Bag filter
Electrostatic precipitators
Dust catcher

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Environmental Engineering in CE
The widest explosive limit is of __________ , thereby making it the most explosive gas.

Hydrogen
Petrol vapor
Carbon monoxide
Acetylene

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Environmental Engineering in CE
Ozone is

Impervious to ultra-violet rays
A secondary pollutant
A primary pollutant
Both B & C

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

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

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MORE MCQ ON Environmental Engineering in CE

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