ONR-002 IGNOU Solved Assignment 2026-27

ONR-002 Solved Assignment: Basics of Hydrology (TMA Solutions)

The following content provides 100% verified solutions for the IGNOU ONR-002 Tutor Marked Assignment (TMA), aligned with the official curriculum for Basics of Hydrology under the Certificate in Water Harvesting and Management (CWHM). Each solution adheres to the prescribed word limits and academic rigor.

Key Syllabus Units Covered

• Block 1: Elementary Hydrology
  • Definition and scope of hydrology in water resource management.
  • Hydrologic cycle: Evaporation, condensation, precipitation, and infiltration processes.
  • Role of hydrology in sustainable water harvesting systems.
• Block 2: Rainfall and Runoff Measurement
  • Types of rainfall gauges and their calibration (e.g., tipping bucket, weighing type).
  • Runoff measurement techniques: Stream gauging, weirs, and flumes.
  • Hydrographs and their interpretation for runoff analysis.
• Block 3: Water Quality
  • Physical, chemical, and biological parameters of water quality.
  • Standards for drinking water and irrigation (IS 10500, BIS guidelines).
  • Impact of pollution on hydrological systems and mitigation strategies.

Sample Solution Structure

Question 1 (Block 1): Explain the significance of the hydrologic cycle in water harvesting.

Answer: The hydrologic cycle is fundamental to water harvesting as it describes the continuous movement of water through evaporation, precipitation, and infiltration. In water harvesting systems, understanding this cycle helps optimize surface and groundwater collection by predicting rainfall patterns and runoff potential.

FAQs

• Q: Are the solutions provided in English or Hindi medium? A: Solutions are available for both English and Hindi mediums, strictly following the prescribed format.
• Q: How do I verify the authenticity of these solutions? A: Cross-reference with the official IGNOU curriculum (eGyanKosh) for ONR-002 and ensure alignment with Blocks 1–3. All answers are plagiarism-free and mapped to the current academic session.

Submission Guidelines

• Word limits strictly enforced (500/250/100 words per question).
• Deadlines: Check the latest IGNOU academic calendar for submission windows.
• Format: PDF or handwritten (as per IGNOU instructions).