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Environmental Engineering in CE

Environmental Engineering in CE
Smog is not formed due to the presence of __________ in the atmosphere.

NOx
Any of these
CO₂
SO₂

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Environmental Engineering in CE
Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called

Powder
Smoke
Grit
Dust

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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

Sulphides
Bi-carbonates
Carbonates
Chlorides

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Environmental Engineering in CE
Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels.

105
95
35
75

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Environmental Engineering in CE
Which of the following is the most major constituents of air pollutants?

Carbon monoxide
Hydrogen sulphide
Oxides of sulphur
Oxides of nitrogen

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Environmental Engineering in CE
Smog is

A liquid particle resulting from vapor condensation
A solid particle e.g. flyash
A combination of smoke and fog
Nothing but black smoke

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MORE MCQ ON Environmental Engineering in CE

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