Q201
Open questionMost efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the
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Environmental Engineering
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Q202
Open questionFoaming and priming in boiler operation can be reduced by reduction in __________ in feed water.
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Q203
Open questionPresence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes
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Q204
Open questionDuring which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum?
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Q205
Open questionA man exposed to excessive noise level in the working environment may suffer from
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Q206
Open questionWater effluent generated in printing industry is decolourised by
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Q207
Open questionThere are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant?
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Q208
Open questionDirect reaction of unsaturated hydrocarbons with either NO or NO2 produces an eye irritating pollutant compound known as
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Q209
Open questionWhich of the following is an adsorbant for removal of nitrogen oxides from gas/air?
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Q210
Open question'Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the
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Q211
Open questionWhich of the following is the most major constituents of air pollutants?
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Q212
Open question__________ plant emits large amount of SO2 as an air pollutant.
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Q213
Open questionIn water chemical treatment plant, use of chloramines ensures
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Q214
Open questionHydrogen ion concentration in distilled water is
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Q215
Open questionA masonry structure built below ground level, where biochemical reaction takes place due to anaerobic bacteria is called
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Q216
Open questionThe most commonly used chemical coagulant in water treatment is
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Q217
Open questionLagooning process is mainly a means of the
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Q218
Open questionThe concentration of water vapour in troposphere, which depends upon the altitude & temperature varies in the range of zero to __________ percent.
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Q219
Open questionThe main industrial source of emission of hydrogen sulphide air pollutant is
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Q220
Open questionWhich of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream?
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