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Environmental Engineering in CE

Environmental Engineering in CE
Exposure to chemicals having carcinogenic properties cause

Cancer
Asthma
Asphyxiation (suffocation)
Dermatitis (skin disorder)

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Environmental Engineering in CE
Main pollutants released from petroleum refineries is

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

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Environmental Engineering in CE
Ionisation potential employed in the industrial electrostatic precipitator is of the order of

230 V DC
230 V AC
30 to 70 kV DC
30 to 70 kV AC

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Environmental Engineering in CE
Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water.

Turbidity
All of these
Color (Hazen)
Total solids

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Environmental Engineering in CE
The pH value of potable water should be between

13 to 14
6.5 to 8
1 to 1.5
4 to 5

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Environmental Engineering in CE
Which of the following fine dust removal equipments is the most efficient?

Electrostatic precipitator
Bag filter
Scrubber
Cyclone separator

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