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GK Questions: Science & Technology – Set 7

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Hello Aspirants. Welcome to Online General Knowledge section in Affairs cloud, which is important for Banking exams and other competitive exams. We have included Some questions related to Science & Technology !!!

  1. ………………. is the largest natural satellite in the solar system
    5.None of these
    Answer -3.Ganymede
    Explanation :
    Ganymede is the largest moon of Jupiter and in the Solar System, and the only moon known to have a magnetosphere. It is the seventh satellite outward from Jupiter

  2. The family of stars with which the Sun is related is ……………
    5.None of these
    Answer – 1.Supernova
    Explanation :
    A supernova is an explosion of a massive supergiant star. It may shine with the brightness of 10 billion suns. The total energy output may be 1044 joules.

  3. Who was the first to view the Milky Way galaxy ?
    2.Sidereus Nuncius
    4.Galileo Galilei
    5.None of these
    Answer – 4.Galileo
    Explanation :
    Galileo first studied the Milky Way through his telescope in January, 1610

  4. ……………. is credited with the expounding of the theory of black holes
    1.Albert Einstein
    2.David Finkelstein
    3.S. Chandrashekar
    4.Robert Oppenheimer
    5.None of these
    Answer – 3.S. Chrandrashekar
    Explanation :
    The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.In 1931, Subrahmanyan Chandrasekhar calculated, using special relativity, that a non-rotating body of electron-degenerate matter above a certain limiting mass has no stable solutions

  5. Cassini Spacecraft related to ……………..
    5.None of these
    Answer – 1.Saturn
    Explanation :
    Cassini–Huygens is an unmanned spacecraft sent to the planet Saturn. It is a flagship-class NASA–ESA–ASI robotic spacecraft.Cassini is the fourth space probe to visit Saturn and the first to enter orbit, and its mission is ongoing as of 2016.

  6. The transit of Venus was seen on 8th June, 2004. This Celestial event took place after a gap of ………………..
    1.100 years
    2.122 years
    3.125 years
    4.90 years
    5.None of these
    Answer – 2.122 years
    Explanation :
    The Transit of Venus took place on 8th June 2004 after a gap of 122 years. The rarecelestial event was utilized by Vigyan Prasar as an opportunity to undertake large-scale science communication.

  7. The brightness of star indicates its …………………
    5.None of these
    Answer – 3.Temperature
    Explanation :
    The brightness of the star dependent upon the temperature of the star and the surface area of the star

  8. Astronomer have determined the approximate age of Sun to be
    2.109 years
    3.1012 years
    4.1010 years
    5.None of these
    Answer – 4.1010 years
    Explanation :
    The Sun formed about 4.6 billion years(aaprox 1010 years) ago from the collapse of part of a giant molecular cloud that consisted mostly of hydrogen and helium and that probably gave birth to many other stars.

  9. Asteroids move around the Sun in between …………………………………..
    1.Mars and Earth
    2.Mars and Jupiter
    3.Venus and Mars
    4.Neptune and Saturn
    5.None of these
    Answer – 2.Mars and Jupiter
    Explanation :
    Most asteroids orbit between Mars and Jupiter in the Main Asteriod Belt

  10. Which planet of the solar system is as big as the Earth ?
    5.None of these
    Answer – 3.Venus
    Explanation :
    Venus is the second planet from the Sun and the sixth largest. Venus is as big as earth Venus probably once had large amounts of water like Earth but it all boiled away.