EXAMIANS
Deaeration of high pressure boiler feed water is done to reduce
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Inhalation of silica dust by human being causes
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Noise level inside a jet air liner in normal flight is about __________ decibels.
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Particulates (< 1μm size) remaining suspended in air indefinitely and transported by wind currents are called
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Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the
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Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of
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Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants?
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Presence of __________ hardness is responsible for the temporary hardness in water.
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There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about __________ °C/km.
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Sulphur dioxide present in the industrial chimney exhaust gases causes
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