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Environmental Engineering in CE

Environmental Engineering in CE
Color test of water is done with an instrument called

Colorimeter
Tintometer
Turbidimeter
Electro-chemical cell

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Environmental Engineering in CE
Presence of high concentration of ozone and smog in atmospheric air causes the

Fading of dye on textiles
Cracking of rubber products
Damage of electrical insulator on high tension power line
Embrittlement & decrease of folding resistance of paper

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Environmental Engineering in CE
As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram)

750
10
800
90

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Environmental Engineering in CE
A man exposed to excessive noise level in the working environment may suffer from

Nervousness & fatigue
Hearing loss
All of these
Rupture of ear drum

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Environmental Engineering in CE
Methyl iso-cynate (MIC) gas (TLV <1 ppm), which caused Bhopal gas tragedy in 1984 falls under the category of __________ toxic gas.

Extremely
Moderately
Highly
Very extremely

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Environmental Engineering in CE
Main pollutants released from petroleum refineries is

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

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