Chemical Environmental Engineering Mcqs

Q.  In water treatment plant, zeolite process is used to remove the _____________ of water?

a. Acidity
b. Alkalinity
c. Hardness
d. Iron & zinc


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MCQs:  Green house gases blanket/block the infrared radiation from earth’s surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect ?
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MCQs:  Which of the following is an adsorbent for removal of nitrogen oxides from gas/air ?
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MCQs:  The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the ________________?
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MCQs:  Which of the following is not a practical method of low level radioactive waste disposal ?
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MCQs:  Global warming may result in __________________?
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MCQs:  Ringelmann chart No. 2 corresponds to _______________ percent black smoke?
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MCQs:  Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by _____________________?
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MCQs:  ______________ content of the phosphate rock is the pollutant of primary interest in a phosphatic fertiliser plant ?
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MCQs:  The weakest sound that can be heard by a person in a quiet environment is equivalent to ____________ decibel ?
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MCQs:  Workers working in _______________ industry are most prone to white lung cancer?
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MCQs:  Which of the following is a manmade source of air pollution ?
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MCQs:  Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur ?
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MCQs:  Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of________________?
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MCQs:  The function of skimming tank in sewage treatment is to remove _____________ substances?
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MCQs:  A standard test for determination of hardness in water is termed as ______________ test?
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MCQs:  Removal of ______________ results from the disinfection of water?
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MCQs:  Which of the following is not a natural source of air pollution ?
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MCQs:  Which of the following is the most widely used disinfectant in water treatment ?
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MCQs:  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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