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Environmental Engineering in CE

Environmental Engineering in CE
In water treatment plant, zeolite process is used to remove the __________ of water.

Iron & zinc
Hardness
Acidity
Alkalinity

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Environmental Engineering in CE
Tri-sodium phosphate is used in boiler water treatment to reduce

Dissolved oxygen
Turbidity
Suspended silica
Caustic embrittlement

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Environmental Engineering in CE
Carbon monoxide is a pollutant, which causes

Asphyxiation (suffocation) leading to death
Damage to building materials like marble
Respiratory disease (e.g. asthma)
Retardation in crop growth

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Environmental Engineering in CE
Main pollutants released from petroleum refineries is

CO₂, NO & SO₃
SO₃, NO₂ & CO₂
CO, SO₂ & H₂S
CO₂, H₂S & NO₂

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Environmental Engineering in CE
For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.

500
1000
10000
5

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Environmental Engineering in CE
Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels.

120
200
170
140

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MORE MCQ ON Environmental Engineering in CE

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