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Environmental Engineering in CE

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

Metallic powder
Woolen clothes
Foodstuffs
None of these

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Environmental Engineering in CE
Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools).

43832
43961
25-30
15-20

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Environmental Engineering in CE
TLV of NO₂ & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO₂ causes

Skin disorder
Cancer
Bone disease
Bronchitis

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Environmental Engineering in CE
Reinglemann chart is used for the measurement of the

Smoke density from a chimey
Flue gas temperature
Combustibles present in automobile exhaust
Exhaust gas density

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Environmental Engineering in CE
Which of the following is not a weightless pollutant?

Thermal pollution
Noise pollution
Radioactive rays
SPM

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Environmental Engineering in CE
Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.

160
105
135
185

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