Certified Safety Professional Practice Exam

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What is the normal range of hearing for humans measured in Hertz (Hz)?

0-10000 Hz

20-20000 Hz

The normal range of hearing for humans, measured in Hertz (Hz), is from 20 Hz to 20,000 Hz. This range encompasses the sounds that the average human ear can detect, allowing individuals to perceive a variety of auditory stimuli, from low-frequency sounds like bass notes to high-frequency sounds like the chirping of birds or a whistle.

Being aware of this range is crucial for fields related to occupational safety and health, as it helps in the assessment of noise exposure levels in the workplace. Sounds below 20 Hz are considered infrasonic, while those above 20,000 Hz are ultrasonic, and these frequencies typically fall outside the perception of human hearing. Recognizing the normal range aids in understanding potential hearing damage risks and the effectiveness of hearing conservation programs in work environments.

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10-15000 Hz

30-25000 Hz

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