Machine-translated by Google. Questions are authored in English.
Top

Discussion

Damage to hearing is caused by sounds which exceed

  • A.70 decibels
  • B.80 decibels
  • C.100 decibels
  • D.120 decibels

Answer: D

Sound above 120 decibels damages hearing at once.

That is the threshold of pain, comparable to a jet engine at close range. Prolonged exposure above 85 dB damages hearing more slowly, which is why 85 dB is the usual occupational limit.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.