EX-503-C Renewable Power Generation - Jun 2025 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aDiscuss the renewable energy scenario in India.
   How to answer

   • Present status and potential of renewable sources in India
   • Share of solar, wind, hydro, biomass, others
   • Government programmes, targets and achievements
   • Challenges and future outlook
2. 7 Marks
   bExplain in detail about the energy strategies adopted for the future.
   How to answer

   • Definition of energy strategy and need for planning
   • Demand-side and supply-side strategies
   • Renewable promotion, efficiency, conservation measures
   • Long-term strategy for energy security
3. 7 Marks
   aWhat are the main components of a flat plate solar collector? With neat sketch, explain the function of each component.
   How to answer

   • List main components: glazing, absorber plate, tubes, insulation, casing
   • Neat labelled sketch of flat plate collector
   • Function of each component
   • Heat transfer and loss control role
4. 7 Marks
   bWith the help of neat diagram explain the key elements of a photo voltaic cell.
   How to answer

   • Structure of photovoltaic cell: p-n junction, contacts, anti-reflective coating
   • Neat diagram showing layers and load
   • Photovoltaic effect and charge separation
   • Current generation and key elements role
5. 7 Marks
   aDescribe types of wind energy systems?
   How to answer

   • Classification basis: axis, size, grid connection
   • Horizontal vs vertical axis systems
   • Stand-alone, grid-connected, hybrid wind systems
   • Applications of each type
6. 7 Marks
   bDiscuss safety and environmental aspects of wind turbine generator.
   How to answer

   • Safety aspects: structural, electrical, mechanical failures
   • Environmental aspects: noise, visual, bird, land use
   • Mitigation measures
   • Standards and siting guidelines
7. 7 Marks
   aWith neat diagram, explain the working principle of biogas plant.
   How to answer

   • Neat diagram of biogas plant: digester, inlet, outlet, gas holder
   • Anaerobic digestion stages
   • Working cycle and gas collection
   • Factors affecting yield
8. 7 Marks
   bDiscuss the Biomass applications in detail.
   How to answer

   • Definition and forms of biomass
   • Applications: cooking, power generation, transport fuel
   • Biochemical and thermochemical routes
   • Advantages and limitations
9. 7 Marks
   aWith neat diagram explain the principle of closed OTEC (Ocean Thermal Energy Conversion) system.
   How to answer

   • Principle of OTEC using ocean temperature difference
   • Neat diagram of closed cycle: evaporator, turbine, condenser, pump
   • Working fluid cycle and power generation
   • Site requirements and efficiency
10. 7 Marks
    bWhat are advantages and disadvantages of hydrogen energy.
    How to answer

    • Properties of hydrogen as fuel
    • Advantages: high calorific value, clean combustion, abundance
    • Disadvantages: storage, cost, safety, production energy
    • Overall assessment
11. 7 Marks
    aDiscuss the advantages of geothermal energy.
    How to answer

    • Source and nature of geothermal energy
    • Advantages: renewable, reliable, low emission, small footprint
    • Economic and operational benefits
    • Comparison with conventional sources
12. 7 Marks
    bDescribe the fuel cells and brief about its functions.
    How to answer

    • Definition and construction of fuel cell
    • Types and main components
    • Working: electrochemical reaction, electrolyte role
    • Functions and applications
13. 7 Marks
    aDiscuss the solar thermal power generation with diagram.
    How to answer

    • Concept of solar thermal power conversion
    • Diagram: collectors, receiver, turbine, generator
    • Working and types: parabolic trough, tower, dish
    • Merits and limitations
14. 7 Marks
    bWhat is concept of hybrid systems? Explain.
    How to answer

    • Definition of hybrid energy system
    • Need for hybridization and combinations
    • Example: solar-wind-diesel-battery system
    • Advantages and control aspects
15. 7 Marks
    aWrite short note on : Wind site selection plant
    How to answer

    • Criteria for wind site selection: wind speed, density, terrain
    • Measurements and data assessment
    • Grid, access and environmental factors
    • Plant layout considerations
16. 7 Marks
    bWrite short note on : Energy Resources Reserve
    How to answer

    • Meaning of energy resources reserve
    • Classification: proven, probable, possible reserves
    • Global and Indian reserve status
    • Need for conservation