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Environmental Engineering in CE

Environmental Engineering in CE
Maximum permissible turbidity in potable water is __________ ppm.

250
10
1
1000

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Environmental Engineering in CE
In sewage treatment, its sedimentation is speeded up by commonly adding

Copper sulphate
Sodium sulphate
Lime
Hydrochloric acid

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Environmental Engineering in CE
A standard test for determination of hardness in water is termed as __________ test.

Total count
Presumptive
EDTA
Electometric

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Environmental Engineering in CE
Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of Nā‚‚ in contaminated air at which it acts as a natural asphyxant is ≄ __________ percent.

88
84
92
80

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Environmental Engineering in CE
Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur?

Troposphere
None of these
Thermosphere
Stratosphere

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Environmental Engineering in CE
High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes

Respiratory disease (e.g., asthma)
Silicosis
Reduced crop yield
Cancer

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MORE MCQ ON Environmental Engineering in CE

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