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Environmental Engineering in CE

Environmental Engineering in CE
Turbidity of water is an indication of the presence of

Suspended inorganic matter
Dissolved solids
Dissolved gases
Floating solids

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Environmental Engineering in CE
Industrial workers working in leather tanning & manufacturing units are prone to suffer from

Blurred vision
Respirtory ailments (e.g. bronchitis)
Silicosis
Skin diseases (e.g. dermatities)

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Environmental Engineering in CE
Pick out the wrong statement pertaining to 'green house' for the plants.

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Environmental Engineering in CE
Septic tanks are used for the __________ of the deposited solids.

Separation
Anaerobic decomposition
Aerobic decomposition
None of these

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Environmental Engineering in CE
Hydrogen ion concentration in distilled water is

10⁷
7 x 10⁻⁷
7 x 10⁷
10⁻⁷

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Environmental Engineering in CE
During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank.

Digestion
Filtration
Sedimentation
Both B and C

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