You are doing hearing tests at the local junior high school. Which of the following indicates normal hearing in a child?
A) A client who first perceives sound at 20 dB
B) A client who first perceives sound at 40 dB
C) A client for whom the painful sound occurs at 80 dB
D) A client for whom the painful sound occurs at 100 dB
A
Feedback:
The lowest level of sound that normal persons may first perceive is 20 dB. The painful sounds occur at 120 dB. The hearing acuity is determined by measuring the intensity at which a person first perceives sound.
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