NCER NON-CONVENTIONAL ENERGY RESOURCES MONTLY SESSIONAL...

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NCER NON-CONVENTIONAL ENERGY RESOURCES MONTLY SESSIONAL TEST (PRE.) BY Ranbir Singh
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What is renewal energy resources? Give its advantages. Renewable energy is energy generated from natural resources such as sunlight, wind, rain, tides and geothermal heat which are renewable (naturally replenished). Renewable energy technologies range from solar power, wind power, hydroelectricity/micro hydro, biomass and biofuels for transportation. Renewable energy is energy that is generated from natural processes that are continuously replenished. This includes sunlight, geothermal heat, wind, tides, water, and various forms of biomass. This energy cannot be exhausted and is constantly renewed. There are five commonly used renewable energy sources: Biomass includes: Wood and wood waste Municipal solid waste Landfill gas and biogas Ethanol Biodiesel Hydropower Geothermal Wind Solar Advantages- Major advantage is that, it is renewal; therefore, sustainable and so will never run out. It requires less maintenance. It produces less or no waste products, such as carbon dioxide etc. It can also bring economics benefits to many regional areas.
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What is solar constant? The solar constant, a measure of flux density, is the conventional name for the mean solar electromagnetic radiation (the solar irradiance) per unit area that would-be incident on a plane perpendicular to the rays, at a distance of one astronomical unit (AU) from the Sun (roughly the mean distance from the Sun to the Earth). The solar constant includes all types of solar radiation, not just the visible light. It is measured by satellite as being 1.361 kilowatts per square meter (kW/m²) at solar minimum and approximately 0.1% greater (roughly 1.362 kW/m²) at solar maximum. What are Beam and Diffuse radiations? Beam radiations- Beam radiation is also called direct radiation. Direct radiation is received from sun rays travelling in a straight line from sun to the earth. Direction radiation is also termed as beam radiation or direct beam radiation. As direct radiation is sun rays travelling in a straight line, shadows of the objects which come in the way of sun rays are formed.
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