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Check your general science knowledge by answering these 10 questions?

Check your general science knowledge by answering these 10 questions

Check your general science knowledge by answering these 10 questions

   Author : Adiyogi Quiz Master

   Posted On : 29-Jan-2018

Q1: A primary fuel is that which is used in the same form as it occurs in nature. Which of the following is not a primary fuel?

  • A. Kerosene
  • B. Wood
  • C. Natural Gas
  • D. Coal

Q2: After the first photons of light are produced, which process is responsible for amplification of the light?

  • A. Einstein oscillation
  • B. Planck?s radiation
  • C. Blackbody radiation
  • D. Stimulated emission

Q3: Which of these has the highest calorific value?

  • A. Rubber
  • B. Hydrogen
  • C. Wood
  • D. Coal

Q4: Breaking of a larger hydrocarbon molecule into a smaller one by heating in the presence of a catalyst is called ___.

  • A. Thermogenation
  • B. Cracking
  • C. Centrifugation
  • D. Orthofugation

Q5: What is the main constituent of coal gas?

  • A. Water
  • B. Nitrogen
  • C. Oxygen
  • D. Methane

Q6: What is the process responsible for producing photons in a diode laser?

  • A. Electron-hole recombination
  • B. Fermi level shift
  • C. Majority carrier injection
  • D. Carrier freeze out

Q7: Some lasers are referred to as being cw. What does cw mean?

  • A. Clear white
  • B. Constant white
  • C. Circular wave
  • D. Continuous wave

Q8: Heating fuels in the absence of air is called 'Destructive Distillation', as it 'destroys' it to form simpler substances. What do we get when we do the same to wood?

  • A. Tar
  • B. All of these
  • C. Acetic Acid
  • D. Charcoal

Q9: "Antifreeze" is used in car radiators to stop the liquid that cools the engine from, well, freezing when it gets cold outside. Water is one component of antifreeze; what is the other main component?

  • A. Acetone
  • B. Ethylene glycol
  • C. Benzene
  • D. Sodium chloride

Q10: What was the active medium used in the first working laser ever constructed?

  • A. Carbon dioxide gas
  • B. A ruby rod
  • C. Helium-neon gas
  • D. A diamond block

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