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Environmental Engineering in CE

Environmental Engineering in CE
The resistance of water to the passage of light through it is a measure of the

Hardness
Dissolved gases
Turbidity
Color

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Environmental Engineering in CE
TLV of aldrin in public water supply system is about __________ μg/litre.

17
357
1097
0.5

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Environmental Engineering in CE
Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes

Anaemia
All of these
Blood poisoning
Nervous system disorder

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Environmental Engineering in CE
Thermal pollution due to excessive heat & temperature in the working place causes

Reduction in working efficiency of manpower
Fatigue
All of these
High breathing rate

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Environmental Engineering in CE
Shouting by a man at his full voice corresponds to a voice level of about __________ decibels.

120
50
25
80

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Environmental Engineering in CE
Phenolic water generated in coke ovens & by-product plant attached to an integrated steel plant containing phenol in concentration of less than 100 mg/litre can be removed by

Treating in biological oxygen pond
None of these
Chemical coagulation
Chlorination

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