BCV654A – Solved Model Question Paper

BCV654A – Water Conservation and Rain Water Harvesting Solved Model Question Paper with Answer

Module 1

1.a) What is a monsoon low? Describe how it influences the monsoon system.

1.b) Discuss the consequences of reduced surface water flow on aquatic ecosystems and biodiversity.

1.c) Briefly explain the effects of urbanization on the natural water cycle.

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2.a) What is the hydrological cycle? Why is it important for maintaining life on Earth?

2.b) Explain the key factors that contribute to the uneven distribution of water resources in Karnataka.

2.c) Briefly mention the key indicators used to identify the withdrawal phase of monsoon rains.

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Module 2

3.a) How does an aquifer function in storing and supplying groundwater?

3.b) Explain the different classes of rainwater harvesting techniques.

3.c) Explain the feasibility of implementing rooftop rainwater harvesting in rural households.

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4.a) Discuss the major sources of water pollution in rural and urban areas.

4.b) Explain the advantages of contour trenching for water conservation in hilly regions.

4.c) Describe the environmental and economic benefits of rainwater harvesting.

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Module 3

5.a) Explain how soil type and permeability affect groundwater recharge rates.

5.b) How can traditional knowledge be integrated with modern technology for sustainable water management?

5.c) A community building has a roof area of 300 m² and receives an average annual rainfall of 600 mm. If the runoff coefficient is 0.9, calculate the total annual rainwater harvested.

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6.a) Explain the procedure to determine the size and capacity of storage tanks used in rainwater harvesting.

6.b) How do traditional systems like stepwells, tanks, and johads contribute to water conservation?

6.c) Design a rainwater harvesting system for a small residential
house with the following details:
Roof Area: 150 m² , Average Annual Rainfall: 1000 mm
Runoff Coefficient: 0.8
Storage Tank Capacity: The tank should store rainwater to meet the household’s needs for 3 months. The daily water requirement for the household is 500 liters.
Design total volume of rainwater harvested per year, Size of the storage tank, Overflow and filtration system

Module 4

7.a) Explain how water conservation helps reduce the energy footprint in water treatment and distribution.

7.b) What are the major sources of water pollution? How can they be controlled to ensure safe drinking water?

7.c) Discuss effective measures to reduce water consumption in:

• Residential sector
• Agricultural sector
• Industrial sector

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8.a) Explain the benefits of water reuse in households, agriculture, and industries.

8.b) What are the impacts of water loss due to pipeline leaks? How can such losses be minimized?

8.c) Describe the environmental consequences of industries that do not follow water conservation practices.

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Module 5

9.a) Describe the significance of geophysical methods in locating groundwater aquifers and assessing water availability.

9.b) Explain the role of environmental regulations in preventing water pollution and conserving water resources.

9.c) How do sustainability assessments guide policy development and water resource management strategies?

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10.a) Explain the concept of grey water footprint and how it relates to wastewater management and industrial discharge.

10.b) Describe the importance of sustainability assessments in achieving global water sustainability.

10.c) Compare the blue water footprint with other types of water footprints.