STUPIDSID
1 (a)
Explain the role of microbes in environment and discuss schematically
different phases of microbial growth.
7 M
1 (b)
Differentiate industrial and domestic waste water and discuss any four chemical characteristics of waste water.
7 M
2 (a)
Explain different impurities in water and describe different water borne diseases with control measures.
7 M
2 (b)
What is 1st stage BOD? Determine BOD8 at 15° C if BOD 5 at 20° C is 150 mg/l. KD(20) =0.23.
7 M
2 (c)
Define pH and find average of pH 2 and pH 6. Calculate how much acidic
is pH 2 compared to pH of 6.
7 M
3 (a)
What are temporary and permanent harnesses? Describe the method of
determination of calcium hardness in the lab.
7 M
3 (b)
Schematically describe different systems of plumbing with their
constructional precautions.
7 M
3 (c)
Discuss briefly different disposal techniques of wastewater and explain with the sketch the oxygen sag curve.
7 M
3 (d)
Classify different types of traps used in house drainage system indicating
their purposes.
7 M
4 (a)
Discuss briefly (a) Sanitary fittings (b) Incineration (c) composting
7 M
4 (b)
Describe the working principal and flow diagram of solid waste
Management.
7 M
4 (c)
Discuss the composition of municipal solid waste and explain their methods
of collection.
7 M
4 (d)
Discuss the different methods of solid waste disposal and describe design
and operation of sanitary land filling.
7 M
5 (a)
Discuss primary and secondary air pollutants with effects of these
pollutants on human beings.
7 M
5 (b)
Enumerate different air pollution control devices and explain the
functioning of electrostatic precipitator.
7 M
5 (c)
Write short notes on (a) EIA (b) COD (c) TS and TDS
7 M
5 (d)
What is dB? Explain the effects of noise pollution.
7 M
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