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Sources of Energy Test - 32

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Sources of Energy Test - 32
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Energy can be extracted by creating a reservoir or basin behind a barrage and then passing tidal waters through turbines in the barrage to generate electricity. This form of energy is known as
    Solution
    Tidal power, also called tidal energy, is a form of hydropower that converts the energy obtained from tides into useful forms of power, mainly electricity.
  • Question 2
    1 / -0
    Which source of energy makes use of the air pressure in generation of energy ?
    Solution
    Windmill makes use of the air pressure in the generation of energy, as hydroelectric power plants capture the energy of falling water to generate electricity.
    A nuclear reactor produces electricity by chain reaction produces the energy, which turns water into steam. The pressure of the steam turns a generator, which produces electricity. 
    In a thermal power plant fuel is burned to produce heat, this heat is used to change water into steam. this drives the generator to produce electricity.
    Whereas in a windmill the energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity.
  • Question 3
    1 / -0
    The installed capacity of wind energy in India is about:
    Solution
    Wind power generation capacity in India has significantly increased in the last few years . The installed capacity of wind energy in India is about 8000MV.
  • Question 4
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    Directions For Questions

    Geothermal energy is heat of earth and is the naturally occurring thermal energy formed within rock formations and the fluids held within those formations. It is underground water which gets converted into hot water and steam when it comes in contact with the hot rocks. There are only certain places, called hot spots. These hot spots are formed when geological changes push the molten rocks, called magma.

    ...view full instructions

    Which of the following statements is not correct regarding the geothermal energy?
    Solution
    Since geothermal energy is naturally occurring thermal energy formed within rocks, and heat is continuously formed inside rocks, it's a free and renewable and most versatile source of energy. And since it's always available electricity can be produced round the clock and cheaply.
  • Question 5
    1 / -0
    In hydrogen bomb we use the process of
    Solution
    The hydrogen bomb relies on fusion, the process of taking two separate atoms and putting them together to form a third atom.

    Fusion is the process that powers the sun and the stars. It is the reaction in which two atoms of hydrogen combine together, or fuse, to form an atom of helium. In the process some of the mass of the hydrogen is converted into energy
    Hence,
    option $$A$$ is correct answer.
  • Question 6
    1 / -0
    Which of the following is a renewable source of energy
    Solution

  • Question 7
    1 / -0
    Which one among the following is a sea without having a coastline?
    Solution
    While all other seas in the world are defined at least in part by land boundaries, the Sargasso Sea is defined only by ocean currents. It does not have any coastline.
  • Question 8
    1 / -0
    What is the correct sequence from the smallest to the largest grain of the following types of clastic rocks?
  • Question 9
    1 / -0
    The riverbank is weakest where the river turns.This is because water
    Solution
    The riverbank is weakest where the river turns because water effectively bounces off the outer bank as it turns, exerting an extra pressure on the bank.
  • Question 10
    1 / -0
    Minimum velocity of wind required for a functional windmill is about:
    Solution
    The kinetic energy of wind is utilized to generate electricity. In this, the wind energy is used to move the turbine of a windmill at high speed which generates electricity. So, the minimum speed required to move the fans of the windmill is 15 km/hr.
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