MCQs: The Killer gas which caused Bhopal gas tragedy in 1984 was________________?
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MCQs: Permissible safe limit (TLV) of _____________ toxic gas is 100-1000 parts per million (ppm)?
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MCQs: The common pollutant generated in chlor-alkali industry and battery manufacture is ___________________?
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MCQs: Deaeration of high pressure boiler feed water is done to reduce ___________________?
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MCQs: Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters ?
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MCQs: Beyond what concentration of H2S in air, acute danger to human life exists ?
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MCQs: Methyl isocyanate (MIC) gas (TLV <1 ppm), which caused Bhopal gas tragedy in 1984 falls under the category of ______________ toxic gas?
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MCQs: Carbonaceous particles having size less than 1 μm are called___________________?
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MCQs: White smoke coming out of the chimney of a furnace indicates the use of_________________?
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MCQs: Most efficient and suitable dust removal equipment for removal of fly-ash from flue gas in a thermal power plant is the__________________?
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MCQs: Pick out the wrong statement pertaining to ‘green house’ for the plants ?
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MCQs: In the context of the chemical process industries, the term BOD is normally associated with the_____________________?
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MCQs: Iron & manganese present as pollutant in water cannot be removed by__________________?
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MCQs: Which is the most practical and economical method for removal of suspended solid matter from polluted water ?
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MCQs: When the concentration of SO2 in air is greater than ______________ ppm, it gives a pungent smell?
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MCQs: Pick out the correct statement ?
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MCQs: 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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MCQs: Which of the following pollutants, if present in atmosphere is detectable by its odour ?
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MCQs: Removal of ______________ is accomplished by aeration of water?
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MCQs: Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal ?
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