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Environmental Engineering in CE

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

Hydrogen sulphide
Cadmium
Asbestos
Mercury

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Environmental Engineering in CE
H₂S present in gaseous stream can be removed by adsorption on

Active carbon
Bog iron
Silica gel
Limestone powder

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Environmental Engineering in CE
Which of the following is a secondary air pollutant?

Sulphur dioxide
Photochemical smog
Dust particles
Nitrogen dioxide

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Environmental Engineering in CE
80% less than 200 mesh size particles are called

Grit
Smoke
Aggregates
Powder

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Environmental Engineering in CE
Main pollutants released from petroleum refineries is

CO₂, NO & SO₃
CO₂, H₂S & NO₂
CO, SO₂ & H₂S
SO₃, NO₂ & CO₂

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Environmental Engineering in CE
Maximum permissible residual chlorine in treated water should be __________ mg/litre.

2 to 3
02 to 0.3
0.001 to 0.01
5 to 10

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MORE MCQ ON Environmental Engineering in CE

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