{ Online Quiz } Important Science Questions for TNPSC - 45

In this Quiz covered for important questions from various TNPSC Exams. TNPSC aspirants can check their Knowledge and to get chances to success. All the best...

1. The audible range of sound is?
   1.  10 Hz to 50 KHz
   2.  10 Hz to 20 KHz
   3.  20 Hz to 20 KHz
   4.  10 Hz to 100 KHz
   
   
2. Ultrasonic waves are not used in?
   1.  Sonar
   2.  Accoustic
   3.  Sonography
   4.  Microwaves
   
   
3. Unit of frequency is?
   1.  Hz
   2.  m/sec
   3.  sec
   4.  m
   
   
4. Sound cannot travel in?
   1.  Air
   2.  Water
   3.  Iron
   4.  Vacuum
   
   
5. Which is the prime sources of energy in an ecosystem?
   1.  Water
   2.  Air
   3.  Organic substances
   4.  Sunlight
   
   
6. Wild peacocks are found in this bird sanctuary?
   1.  Vedanthangal Bird Sanctuary
   2.  Viralimalai
   3.  Mukkurthi National Park
   4.  None of these
   
   
7. How many tiger reserves found in India?
   1.  27
   2.  72
   3.  35
   4.  53
   
   
8. Which of the following is used in pencils??
   1.  Silicon
   2.  Phosphorous
   3.  Charcoal
   4.  Graphite
   
   
9. The concept of 'Green Chemistry' was introduced in the year of?
   1.  1993
   2.  1994
   3.  1995
   4.  1996
   
   
10. Who is coined by the term of 'Global Village'?
    1.  Louis Pasteur
    2.  Marshall Pasteur
    3.  Alaxander Fleming
    4.  Marshall McLuhan
    
    

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