Chemical Engineering :: Environmental Engineering
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Scale formation in boiler is controlled by
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Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels.
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Which is the best and the most effective method for the removal of organic contaminant present in the polluted water in very small quantity (say < 200 mg/litre)?
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Which is a secondary air pollutant ?
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Which of the following is the most detrimental for water used in high pressure boiler ?
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Turbidity of water is an indication of the presence of
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Presence of excess flourine in water causes
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Siderosis is a disease caused by the inhalation of __________ dust.
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Which of the following pollutants is not emitted during volcanic eruptions ?