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Environmental Engineering in CE

Environmental Engineering in CE
World environment day is observed every year on the 5th of

December
July
June
September

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Environmental Engineering in CE
In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks.

9 to 10
15 to 20
1 to 2
4 to 5

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Environmental Engineering in CE
Main pollutants released from petroleum refineries is

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

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Environmental Engineering in CE
The commonest form of iron & manganese found in ground water as pollutant is in the form of their

Bi-carbonates
Chlorides
Carbonates
Sulphides

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Environmental Engineering in CE
Presence of bacteria in potable (drinking) water causes

Bad odour
Turbidity
Disease
Bad taste & colour

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Environmental Engineering in CE
Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters?

I-131
Ra-226
Au-198
Sr-90

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MORE MCQ ON Environmental Engineering in CE

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