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Environmental Engineering in CE

Environmental Engineering in CE
Dissolved oxygen content in river water is around __________ ppm.

250
500
100
5

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Environmental Engineering in CE
Presence of nitrates in water in excess of 50 ppm causes

Tooth decay
Mathenoglobenemia
Gastroentetitis
Asphyxiation

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Environmental Engineering in CE
Atmospheric pollution caused by the exhaust gas of supresonic transport air-crafts is mostly in the atmospheric region called

Troposphere
Mesosphere
Stratosphere
Thermosphere

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Environmental Engineering in CE
Beyond what concentration of H₂S in air, acute danger to human life exists?

300 ppm
700 ppm
100 ppm
50 ppm

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Environmental Engineering in CE
Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances.

Inorganic
None of these
Radioactive
Organic

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Environmental Engineering in CE
Acute danger to human life (i.e. death) exists, if the concentration of CO₂ in atmospheric air exceeds __________ percent (by volume).

7
1
3
20

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MORE MCQ ON Environmental Engineering in CE

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