Everyday Science MCQs

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11. Which device is needed to convert AC current into DC current?

  1. Dynamo
  2. Rectifier
  3. Transformer
  4. Transducer

12. For a fixed mass of gases at a constant temperature, if we decrease volume, the pressure will           _________?

  1. Also, decrease
  2. Increase
  3. Remains constant
  4. None of these

13. All of the following diseases are caused by viruses, except?

  1. Jaundice
  2. Influenza
  3. Typhoid
  4. Mumps

14. Trachoma is a disease of?

  1. Brain
  2. Larynx
  3. Ear
  4. Eye

15. Fathom is the unit of measurement?

  1. Depth of water
  2. Flow of water
  3. Volume of water
  4. Density of water

16. The lifespan of Red Blood Cells is __________ days?

  1. 60
  2. 120
  3. 180
  4. 240

17. The density of water is __________?

  1.  1 g/cm3
  2. 1.5 g/cm3
  3. 2 g/cm3
  4. None of these

18. Radioactivity was discovered by __________?

  1. Kelvin
  2. Thomson
  3. Rutherford
  4. Becquerel

19. A device that converts chemical energy into electrical energy is called __________?

  1. Motor
  2. Generator
  3. Moving-coil meter
  4. Battery

20. Which rays are trapped in our galaxy by magnetic waves?

  1. Alpha rays
  2. Gamma rays
  3. Cosmic rays
  4. None of these