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Environmental Engineering in CE

Environmental Engineering in CE
Ozone is

Both B & C
Impervious to ultra-violet rays
A secondary pollutant
A primary pollutant

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Environmental Engineering in CE
Tri-sodium phosphate is used in boiler water treatment to reduce

Suspended silica
Dissolved oxygen
Turbidity
Caustic embrittlement

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Environmental Engineering in CE
The progressive warming up of the earth's surface is mainly due to the

Thickening of ozone layer
Automobile exhaust
De-forestation
Blanketing effect of CO₂ in the atmosphere

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Environmental Engineering in CE
Exposure to small amount of __________ results in high blood pressure & heart disease in human beings.

Asbestos
Hydrogen sulphide
Mercury
Cadmium

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Environmental Engineering in CE
Polyvinyl chloride containers are not suitable for storing

None of these
Metallic powder
Foodstuffs
Woolen clothes

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Environmental Engineering in CE
High noise level in a chemical plant can be controlled by the

All of these
Path control of noise
Protection of operating personnel
Suppression of noise at the source itself

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MORE MCQ ON Environmental Engineering in CE

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