The signal intensity ofPure-tone audiometers ranging from ______(a) 10 dB to +100 dB(b) –10 dB to -100 dB(c) –10 dB to +100 dB(d) –10 dB to +10 dBThe question was asked during an interview for a job.My query is from Measurement of Hearing topic in division Audiometry of Biomedical Instrumentation

The signal intensity ofPure-tone audiometers ranging from ______(a) 10

1.	The signal intensity ofPure-tone audiometers ranging from ______(a) 10 dB to +100 dB(b) –10 dB to -100 dB(c) –10 dB to +100 dB(d) –10 dB to +10 dBThe question was asked during an interview for a job.My query is from Measurement of Hearing topic in division Audiometry of Biomedical Instrumentation
Answer» Right answer is (c) –10 dB to +100 dB Explanation: Pure-tone audiometers usually generate test tones in octave steps from 125 to 8000 HZ, the signal intensity ranging from –10 dB to +100 dB. A wave in the air, which involves only one frequency of vibration, is known as pure-tone. Pure-tone audiometry is used in routine tests and, therefore, it is the most widely used technique for determining hearing loss. Pure-tone audiometry has several advantages, which MAKES it SPECIFICALLY suitable for making threshold sensitivity measurements.

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