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Environmental Engineering in CE

Environmental Engineering in CE
Presence of excess flourine in water causes

Tooth decay
Respiratory disease
Dental cavity
Fluorosis

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Environmental Engineering in CE
Most of the atmospheric air pollutants are present in large quantity in

Mesosphere
Thermosphere
Trophosphere
Stratosphere

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

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

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Environmental Engineering in CE
Peroxyacyl nitrate (PAN), a pollutant is found in the

Automobile exhaust
Flue gas of coal based power plant
Exhaust of nitric acid plant
Exhaust of sulphuric acid plant

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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
Neither A nor B
Shear forces
Reynold stresses

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Environmental Engineering in CE
Which of the following is an adsorbant for removal of nitrogen oxides from gas/air?

Silica gel
Active carbon
Pulverised limestone
Bog iron (iron oxide)

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