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Environmental Engineering in CE

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

1
250
10
1000

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Environmental Engineering in CE
Polluted water having low BOD are most economically treated in

Sludge digester
Clarifier
Oxidation ponds
Sedimentation tanks

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Environmental Engineering in CE
Tolerable limit of nitrogen oxides in air is __________ ppm.

1
25
0.1
5

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Environmental Engineering in CE
Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to

Both A & B
Reynold stresses
Neither A nor B
Shear forces

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

100
500
5
250

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Environmental Engineering in CE
Presence of excess flourine in water causes

Tooth decay
Fluorosis
Respiratory disease
Dental cavity

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MORE MCQ ON Environmental Engineering in CE

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