What is pH? State how acidic is pH 2 compare to pH
[3 marks]Schematically discuss microbial growth curve and give significance of lag phase.
[4 marks]What cause acidity and alkalinity in water? Describe the procedure of laboratory analysis of acidity
[7 marks]What is BOD/COD ratio? Give its significance
[3 marks]“Water contamination may or may not be present in polluted water” Justify the statement
[4 marks]How the location of transfer stations is fixed for solid waste collection? Describe the layout of transfer stations in your society
[7 marks]Derive the equation for first stage BOD and calculate 5 day BOD at 20oC if 3 day BOD at 30oC is 110 mg/Land Kat 20oC is 0.1 D
[7 marks]Define TDS,TSS and TS
[3 marks]Differentiate presumptive and confirmative test used for MPN?
[4 marks]Describe different types of hardness and explain how one can judge without lab test, the presence of hardness in water.
[7 marks]Discuss different compositions of typical Indian solid waste
[3 marks]Define and differentiate de-oxygenation and re-oxygenation curve.
[4 marks]Enumerate different types traps used in India and differentiate Interception trap and Gully trap showing their sketches.
[7 marks]Define(i) Sullage (ii) Refuse (iii) Garbage
[3 marks]Organize a house drainage plan for a G+2 apartment of 3BHK flat having 4 flats on each floor.
[4 marks]Schematically discuss the mechanical composting method of solid waste disposal and compare it with the method of sanitary land filling
[7 marks]State salient features of air (prevention and control of pollution) act
[3 marks]Describe the effects of CO and PAN on human beings
[4 marks]Explain the working principles of any two air pollution control devices with sketches.
[7 marks]Give ambient air quality standards for SO , NO and SPM
[3 marks]Define DO, BOD, COD and TOC
[4 marks]Describe one pipe and two pipe systems of plumbing with sketches and compare their merits and demerits. OR1
[7 marks]State salient features of water supply scheme
[3 marks]Discuss the effects of noise pollution on human beings and suggests some control measures
[4 marks]Enlist different disposal technologies used for hazardous waste and discuss method of incineration used for disposal of toxic waste.
[7 marks]