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Environmental Engineering in CE

Environmental Engineering in CE
Fresh sewage is __________ in nature.

Alkaline
Highly acidic
Neutral
Acidic

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Environmental Engineering in CE
Noise pollution level in a chemical plant is expressed in

Decibel
Roentgen
Hertz
None of these

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Environmental Engineering in CE
Presence of dissolved impurities of __________ is responsible for the red brownish color of water.

Bi-carbonates
Carbonates
Iron & manganese
Arsenic

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Environmental Engineering in CE
Persons working in cement plants and limestone quarries are more prone to disease like

Cancer
Asthma
Flourosis (bone disease)
Silicosis

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Environmental Engineering in CE
'Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the

Automobiles exhaust
Industrial chimney exhaust
Photochemical reaction in polluted atmosphere
Burning of domestic fuel

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Environmental Engineering in CE
Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the

Rain
Forestation
Vegetation
Green house effect

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MORE MCQ ON Environmental Engineering in CE

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