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  • Question

  • Damage to hearing is caused by sounds which exceed


  • Options
  • A. 70 decibles
  • B. 80 decibles
  • C. 100 decibles
  • D. 120 decibles

  • Correct Answer
  • 120 decibles 

    Explanation

    High frequency sound attacks the tympanic memberane and makes it defective. 120 decibles is too high a pitch to be heard and therefore it impairs the hearing ability.

    • More questions

    • 1. Which of these is not a computer?

    • Options
    • A. Aptiva
    • B. Macintosh
    • C. Acorn
    • D. Paseo
      • Discuss
    • 2. On July 12, 1982, the ARDC was merged into


    • Options
    • A. RBI
    • B. NABARD
    • C. EXIM Bank
    • D. None of the above
      • Discuss
    • 3. Outer covering of virus made up of protein is

    • Options
    • A. capsid
    • B. coat
    • C. virion
    • D. viriod
      • Discuss
    • 4. What is part of a database that holds only one type of information?

    • Options
    • A. Report
    • B. Field
    • C. Record
    • D. File
      • Discuss
    • 5. In which year did Milkha Singh win the first National title in the 400 m race?

    • Options
    • A. 1955
    • B. 1956
    • C. 1957
    • D. 1970
      • Discuss
    • 6. Bismillah Khan was associated with?

    • Options
    • A. Sarod
    • B. Shehnai
    • C. Flute
    • D. Tabla
      • Discuss
    • 7. The light of distant stars is affected by


    • Options
    • A. the earth's atmosphere
    • B. interstellar dust
    • C. both (a) and (b)
    • D. None of the above
      • Discuss
    • 8. The minor planets revolving between the orbits of Jupiter and Mars are called

    • Options
    • A. Novas
    • B. Comets
    • C. Meteors
    • D. Asteroids
      • Discuss
    • 9. HTML is used to...

    • Options
    • A. Plot complicated graphs
    • B. Author webpages
    • C. Translate one language into another
    • D. Solve equations
      • Discuss
    • 10. What is the Websites code for the country Mongolia?

    • Options
    • A. MN
    • B. ML
    • C. MG
    • D. MO
      • Discuss

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