SSC Sample Paper

done NCERT - Sample Paper-5 Total Questions - 3    [Download]

• question_answer1)
  What is the role of ultraviolet (UV) radiation in the water purification systems?                                              (2014)

  1. It inactivates/kills the harmful microorganisms in water.

  2. It removes all the undesirable odours from the water.

  3. It quickens the sedimentation of solid particles, removes turbidity and improves the clarity of water.

  Which of the statements given above is/are correct?

  A)
   1        
  done clear
  B)
          2 and 3
  done clear
  C)
   1 and 3           
  done clear
  D)
   1, 2 and 3
  done clear
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• question_answer2)
  Graphene is frequently in news recently. What is its importance?                                                                          (2013)

  1. It is a two-dimensional material and has good electrical conductivity.

  2. It is one of the thinnest but strongest materials tested so far.

  3. It is entirely made of silicon and has high optical transparency.

  4. It can be used as 'conducting electrodes' required for touch screens LCD and organic LEDs.

  Which of the statements given above are correct?

  A)
   1 and 2
  done clear
  B)
   3 and 4
  done clear
  C)
   1, 2 and 4                    
  done clear
  D)
   1, 2, 3 and 4
  done clear
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• question_answer3)
  A team of scientists at Brookhaven National Laboratory including those from India created the heaviest anti-matter     (anti-helium nucleus). What is/are the implication/implications of the creation of anti-matter?                                   (2013)

  1. It will make mineral prospecting and oil exploration easier and cheaper

  2. It will help probe the possibility of the existence of stars and galaxies made or anti-matter.

  3. It will help understand the evolution of the universe.

  Select the correct answer using the codes given below:

  A)
   1                    
  done clear
  B)
   2 and 3
  done clear
  C)
   3                                
  done clear
  D)
   1, 2 and 3
  done clear
  View Answer play_arrow