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Environmental Engineering in CE

Environmental Engineering in CE
Arsenic pollutant is not generated in____industries.

Tanneries
Any of these
Glass & ceramic
Beverages

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Environmental Engineering in CE
Hardy cross method of analysis of distribution system(i) Involves successive trials(ii) Takes economic aspects into account(iii) Is time consuming

(i) and (ii)
(i) and (iii)
Only (i)
All are correct

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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
15-20
43961
25-30

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Environmental Engineering in CE
Which of the following dust collection equipments is the least efficient (for sub-micronic particles)?

Dust catcher (gravity type)
Hollow wet scrubber
Bag filter
Cyclone separator

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Environmental Engineering in CE
Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by

Centrifugation
Chemical coagulation
Ultrafiltration
Floatation & skimming

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Environmental Engineering in CE
Hazardous/polluting chemical industries should have an 'exclusion zone' with a green belt and general public access prohibited around it, covering a radius of ____ metres.

1000
100
4000
400

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