Chemical Environmental Engineering Mcqs

Q.  There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant ?

a. Mercury
b. Arsenic
c. Aluminium
d. Lead


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Salt content in sea water is about ______________ percent?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  High noise levels produced during operation of fans and compressors can be reduced by using__________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
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 ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following is an adsorbent for removal of nitrogen oxides from gas/air ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the ________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following is not a practical method of low level radioactive waste disposal ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  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_________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Global warming may result in __________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Ringelmann chart No. 2 corresponds to _______________ percent black smoke?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by _____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  ______________ content of the phosphate rock is the pollutant of primary interest in a phosphatic fertiliser plant ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The weakest sound that can be heard by a person in a quiet environment is equivalent to ____________ decibel ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Workers working in _______________ industry are most prone to white lung cancer?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following is a manmade source of air pollution ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
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________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The function of skimming tank in sewage treatment is to remove _____________ substances?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  A standard test for determination of hardness in water is termed as ______________ test?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Removal of ______________ results from the disinfection of water?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following is not a natural source of air pollution ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts