Science & Technology Quiz

15 Questions | Total Attempts: 5214

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Science & Technology Quiz

Science is the study of the structure and behavior of the physical and natural world through observation and experiment, application of scientific knowledge for practical purposes is done through technology. This quiz section is generally for students. For those students who are from science stream so let’s see how much you know when it comes to science and technology. Good luck!


Questions and Answers
  • 1. 
    What is the process responsible for producing photons in a diode laser?
    • A. 

      Fermi level shift

    • B. 

      Majority carrier injection

    • C. 

      Carrier freeze out

    • D. 

      Electron-hole recombination

    • E. 

      None of the above

  • 2. 
    What was the active medium used in the first working laser ever constructed?
    • A. 

      A diamond block

    • B. 

      Helium-neon gas

    • C. 

      A ruby rod

    • D. 

      Carbon dioxide gas

    • E. 

      Nitrogen gas

  • 3. 
    After the first photons of light are produced, which process is responsible for amplification of the light ?
    • A. 

      Blackbody radiation

    • B. 

      Stimulated emission

    • C. 

      Einstein oscillation

    • D. 

      Planck’s radiation

    • E. 

      None of the above

  • 4. 
    Breaking of a larger hydrocarbon molecule into a smaller one by heating in the presence of a catalyst is called ___.
    • A. 

      Cracking

    • B. 

      Orthofugation

    • C. 

      Centrifugation

    • D. 

      Thermogenation

    • E. 

      Thermocracking

  • 5. 
    Where was the first oil well struck in the world?
    • A. 

      Kuwait

    • B. 

      Australia

    • C. 

      Saudi Arabia

    • D. 

      India

    • E. 

      USA

  • 6. 
    Which of these has the highest calorific value?
    • A. 

      Rubber

    • B. 

      Hydrogen

    • C. 

      Coal

    • D. 

      Plastic

    • E. 

      Wood

  • 7. 
    What is dry ice?
    • A. 

      Liquid nitrogen

    • B. 

      Water ice

    • C. 

      Solid carbon dioxide

    • D. 

      Frozen ethanol

    • E. 

      None of the above

  • 8. 
    What was the first element to be produced artificially ?
    • A. 

      Plutonium

    • B. 

      Neptunium

    • C. 

      Francium

    • D. 

      Technetium

    • E. 

      None of these

  • 9. 
    In what country must you turn over any meteor finds?
    • A. 

      Scotland

    • B. 

      Egypt

    • C. 

      South Africa

    • D. 

      Russia

    • E. 

      USA

  • 10. 
    Exhaled air has what % of its oxygen left?
    • A. 

      77%

    • B. 

      24%

    • C. 

      62%

    • D. 

      48%

    • E. 

      55%

  • 11. 
    Much of our body heat escapes through the head. What percent is this?
    • A. 

      50%

    • B. 

      60%

    • C. 

      70%

    • D. 

      80%

    • E. 

      90%

  • 12. 
    The Law of Octaves was given by...?
    • A. 

      Mendeleev

    • B. 

      John Newlands

    • C. 

      Bohr

    • D. 

      Dobereiner

    • E. 

      None of the above

  • 13. 
     Lux is the unit of...?
    • A. 

      Luminous Intensity

    • B. 

      Magnetic flux

    • C. 

      Focus

    • D. 

      Luminous Flux

    • E. 

      Illumination

  • 14. 
    What was the coldest temperature ever recorded on Earth (at Vostok, Antarctica)?
    • A. 

      -197 F

    • B. 

      -136 F

    • C. 

      -103 F

    • D. 

      -129 F

    • E. 

      -53 F

  • 15. 
    Pure water freezes at what temperature?1) 2) 3) 4) 
    • A. 

      19 F

    • B. 

      0 F

    • C. 

      32 F

    • D. 

      47 F

    • E. 

      23 F

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