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2003 Course Environmental Eng. (Theory) (Elective)

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Total No. of Questions : 12] P1363 [Total No. of Pages : 3 [3764]-325 B.E. (Chemical) ENVIRONMENTAL ENGINEERING (Elective) (Theory) (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidate: 1) Answer any three questions from each section. 2) Answer to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Your answers will be valued as a whole. 6) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 7) Assume suitable data, if necessary. SECTION - I Q1) a) Name and describe the four layers of the atmosphere. b) What are the primary pollutants? What are the secondary pollutants? Give examples. c) Explain the relationship between the adiabatic lapse rate of rising plume of stack gas and the ambient lapse rate. d) Name and define the two types of inversions. Which types prompts the formation of fog? [16] OR Name five natural removal mechanisms at work in the atmosphere. Which is the most important particulate removal mechanism. [8] Q2) a) b) What are two broad approaches to control of air pollution emissions. Explain in detail. [8] Q3) Write short notes on; a) NDIR spectrometry. b) Isokinetic sampling. c) Selection of particulate collector. d) [16] Fabric filter. P.T.O. 1

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