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Environmental Engineering MCQ Questions & Answers | Chemical Engineering

Learn Environmental Engineering MCQ questions & answers are available for a Chemical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Environmental Engineering MCQ question is the important chapter for a Chemical Engineering and GATE students. Page-6 section-2

Each section contains 100 MCQs on Environmental Engineering in CE .
51
Exposure to SO2 containing chimney gases results in the
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Answer & Solution
Answer: Option D
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52
The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria.
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Answer: Option C
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53
The main type of sludge gas evolved during sewage treatment in Imhoff tank is
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Answer: Option B
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54
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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Answer: Option C
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55
Global warming may result in
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Answer: Option D
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56
Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools).
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Answer: Option B
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57
Pick out the one which is not a chemical coagulant.
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Answer: Option D
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58
Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes
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Answer: Option D
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59
Which of the following industries discharge mercury as a pollutant?
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Answer: Option A
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60
Which of the following is the most severe air pollutant?
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Answer: Option B
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