Enlist and explain different sources of surface water.
[3 marks]Give the classification of microorganisms.
[4 marks]Explain different type of water demands in brief.
[7 marks]Differentiate between BOD and COD.
[3 marks]The 4 day 30 C BOD of a sewage sample is 200 mg/l. Calculate its day 35 C BOD. Assume deoxygenation constant at 20 Cas 0.1.
[4 marks]Explain the factors affecting self purification capacity of the river.
[7 marks]Explain different zones of pollution in a river.
[7 marks]Enlist and explain different physical quality parameter of drinking water.
[3 marks]Write short note on water borne diseases.
[4 marks]Explain oxygen sag curve with a neat sketch.
[7 marks]Explain different types of solids found in wastewater
[3 marks]Give sanitary significance of following parameters, with reference to drinking water: 1. Nitrate 2. Fluoride 3. Mercury 4. pH
[4 marks]Explain different physical characteristics of wastewater
[7 marks]Define: 1. Sullage 2. Soil pipe 3. Waste pipe.
[3 marks]Explain land fill method used for disposal of solid waste.
[4 marks]Enlist the principles of house drainage system.
[7 marks]Define: 1. Rubbish 2. Garbage 3. Leachate
[3 marks]Explain different types of plumbing systems used for house drainage.
[4 marks]What is transfer station? When it is needed? Enlist the points to be considered for fixing the location of the transfer station.
[7 marks]State the sources and effects of oxides of nitrogen.
[3 marks]Give the classification of air pollutants.
[4 marks]Explain how noise pollution can be controlled.
[7 marks]State the sources of noise pollution.
[3 marks]What is the Environmental (Protection) Act-1986, what are its objectives?
[4 marks]Explain different equipments used for control of particulate matter.
[7 marks]