Chemical Environmental Engineering — Test 2
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Question 1
Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by _____________________?
Question 2
______________ content of the phosphate rock is the pollutant of primary interest in a phosphatic fertiliser plant ?
Question 3
The weakest sound that can be heard by a person in a quiet environment is equivalent to ____________ decibel ?
Question 4
Workers working in _______________ industry are most prone to white lung cancer?
Question 5
Which of the following is a manmade source of air pollution ?
Question 6
Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur ?
Question 7
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________________?
Question 8
The function of skimming tank in sewage treatment is to remove _____________ substances?
Question 9
A standard test for determination of hardness in water is termed as ______________ test?
Question 10
Removal of ______________ results from the disinfection of water?