JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III ENVIRONMENTAL ENGINEERING Previous Question Paper (August/September - 2024 - R16)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
What is the significance of Population forecast in Water supply system?
Answer
Population forecasting is essential to estimate the future water requirements of a community over the design period (typically 30-50 years). It ensures that water supply infrastructure, such as treatment plants, reservoirs, and distribution networks, is sized correctly to meet the demand of the projected population without being undersized or excessively oversized.
What are the different types of Water Demand?
Answer
Water demand is categorized into: 1) Domestic water demand, 2) Industrial and commercial water demand, 3) Public utility demand (e.g., street washing, parks), 4) Fire demand, and 5) Compensation for losses and waste in the distribution system.
Define Sedimentation.
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What are the applications of rapid gravity filters?
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Give formula for Hardy Cross Method.
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What is the difference between scour valve and sluice valve?
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Define BOD.
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What is the functions of two pipe system of plumbing?
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What is a septic tank?
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Differentiate Chemical and Biological Waste water treatment with suitable examples.
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Part B
Discuss the geometric increase method and its significance.
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What are the parameters considered in design of water supply system?
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Give the values for Drinking Water Standards as per IS 10500: 2012 a) pH b)Total Hardness c)Total dissolved solids d) Turbidity e) Lead.
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Differentiate coagulation and flocculation.
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What is the working principle of Primary Clarifier?
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Explain different types of chlorination in Water treatment and how to calculate chlorine demand?
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What is the Grid Iron system in Distribution Networks? Give a schematic diagram.
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Discuss about combined sewer flow.
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Explain Equivalent pipe method of water distribution network analysis.
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What methods are used to test pipe line?
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Describe the functions of Inverted Siphons with suitable diagram.
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Why flow regulator device is used in sewers?
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Describe different types of Manholes used in collection system.
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Give a schematic diagram of biological sludge treatment.
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Discuss in detail the operation mechanism of gravity thickening process.
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Explain in detail the design and working mechanism of Trickling filter.
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