Introduction to Renewable Energy Sources
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Questions and Answers

What is the primary advantage of renewable energy sources in terms of energy security?

  • Increased reliance on traditional and conventional methods
  • Depletion of natural resources
  • Vulnerability to supply disruptions
  • Reduced dependence on imported fossil fuels (correct)

    • Which of the following is a significant economic opportunity associated with renewable energy?

  • Job creation and stimulation of economic growth (correct)
  • Reducing greenhouse gas emissions
  • Decreased investment in research and development
  • Increased dependence on fossil fuels

    • What is a major environmental benefit of transitioning to renewable energy sources?

  • Increased reliance on traditional energy sources
  • Reduced greenhouse gas emissions and mitigation of climate change (correct)
  • Depletion of finite resources
  • Increased air and water pollution

    • Why is there a growing emphasis on transitioning to renewable energy sources?

    <p>Due to the finite nature of fossil fuels and environmental factors</p> Signup and view all the answers

    What is a significant benefit of decentralized power generation through renewable energy sources?

    <p>Enhanced energy resilience</p> Signup and view all the answers

    What is the main driving force behind the transition to renewable energy sources?

    <p>Environmental concerns and technological advancements</p> Signup and view all the answers

    What is the main source of energy for power generation in India?

    <p>Coal</p> Signup and view all the answers

    What is the primary goal of the Paris Agreement?

    <p>To limit global temperature increases and reduce greenhouse gas emissions</p> Signup and view all the answers

    What is the main challenge posed by rapid urbanization in India?

    <p>Meeting the growing energy demand</p> Signup and view all the answers

    What is the purpose of the Perform, Achieve, and Trade (PAT) scheme in India?

    <p>To improve energy efficiency in industries</p> Signup and view all the answers

    What is the approximate value of the solar constant in watts per square meter?

    <p>1361 W/m²</p> Signup and view all the answers

    What is the significance of the solar declination angle?

    <p>It determines the latitude on Earth where the Sun is directly overhead at solar noon during the equinoxes</p> Signup and view all the answers

    What is the primary role of the solar azimuth angle?

    <p>It provides information about the direction of the Sun</p> Signup and view all the answers

    What is the significance of the angle of incidence in solar energy applications?

    <p>It determines the efficiency of solar panels</p> Signup and view all the answers

    What is the wavelength range of Ultraviolet (UV) radiation?

    <p>10 nm to 400 nm</p> Signup and view all the answers

    What type of energy source harvests energy from the sun?

    <p>Solar energy</p> Signup and view all the answers

    Which energy source captures kinetic energy from the wind?

    <p>Wind energy</p> Signup and view all the answers

    What is a source of renewable energy that taps into Earth's internal heat?

    <p>Geothermal energy</p> Signup and view all the answers

    Which energy source can be considered renewable if sourced sustainably and uses organic materials for energy?

    <p>Biomass</p> Signup and view all the answers

    From which type of energy source are traditional biomass (wood, dung) when harvested unsustainably derived?

    <p>Non-renewable biomass</p> Signup and view all the answers

    What is the wavelength range of visible light?

    <p>400 nm to 700 nm</p> Signup and view all the answers

    What is the function of the concentrating optics system in a pyrheliometer?

    <p>To focus sunlight onto a sensor</p> Signup and view all the answers

    What is the purpose of the black coating on the sensing element of a pyrheliometer?

    <p>To maximize the absorption of solar radiation</p> Signup and view all the answers

    What is direct solar irradiance, as measured by a pyrheliometer?

    <p>The amount of solar radiation received per unit area on a surface perpendicular to the Sun's rays</p> Signup and view all the answers

    What is the purpose of calibrating a pyrheliometer?

    <p>To ensure the accuracy of the instrument's measurements</p> Signup and view all the answers

    What is the primary function of the glass sphere or prism in a sunshine recorder?

    <p>To capture the focused sunlight on the recording medium</p> Signup and view all the answers

    What is the purpose of the daily rotation of the sunshine recorder?

    <p>To synchronize the recorder with the sun's movement across the sky</p> Signup and view all the answers

    What is the result of the focused sunlight on the recording medium?

    <p>A burn or mark is created on the recording medium</p> Signup and view all the answers

    What is a key feature of modern sunshine recorders?

    <p>Automatic mechanisms for data collection and analysis</p> Signup and view all the answers

    What is the significance of sunshine data in climatology?

    <p>It characterizes different climate zones and understands the influence of solar radiation on local and global weather patterns</p> Signup and view all the answers

    What is the purpose of deploying sunshine recorders globally?

    <p>To understand regional and global patterns of sunshine duration</p> Signup and view all the answers

    What is the primary application of sunshine data in meteorology?

    <p>Weather forecasting and solar energy resource assessment</p> Signup and view all the answers

    What is the role of sunshine recorders in understanding the Earth's energy balance?

    <p>They contribute valuable information to meteorological databases and climate studies</p> Signup and view all the answers

    What is the outcome of measuring the length of the burns or marks on the recording medium?

    <p>The sunshine hours are calculated</p> Signup and view all the answers

    What is the primary component of a sunshine recorder that captures the focused sunlight?

    <p>The recording medium</p> Signup and view all the answers

    What is the primary difference between a pyrheliometer and a pyranometer?

    <p>A pyrheliometer measures direct solar irradiance, while a pyranometer measures total solar irradiance.</p> Signup and view all the answers

    What is the key feature of a quality pyranometer?

    <p>Sensitivity to solar radiation from all directions</p> Signup and view all the answers

    How is solar radiation typically measured in terms of units?

    <p>Watts per square meter</p> Signup and view all the answers

    Which component of a pyranometer helps to minimize heat loss while allowing sunlight to enter?

    <p>Glass or quartz dome</p> Signup and view all the answers

    What is the main purpose of a sunshine recorder?

    <p>To determine the duration of sunshine at a location</p> Signup and view all the answers

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