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Environmental Engineering in CE

Environmental Engineering in CE
TLV of ozone (O₃) and phosgene (COCl₂) in air is __________ ppm.

25
100
0.1
1000

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

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

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Environmental Engineering in CE
Presence of excess flourine in water causes

Respiratory disease
Fluorosis
Tooth decay
Dental cavity

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Environmental Engineering in CE
The common pollutant generated in chlor-alkali industry and battery manufacture is

Brine
Phosphate
Mercury
None of these

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Environmental Engineering in CE
Dissolved oxygen content in river water is around __________ ppm.

5
500
100
250

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Environmental Engineering in CE
Phenolic water generated in coke ovens & by-product plant of a steel plant are disposed off by

Quenching of hot coke
Filtration and recycling for cooling coke oven gas
None of these
Discharging in the river stream

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