Exam Preview for 41720: 20Q: Something About Mead March 9, 2026

20Q: Something About Mead

Please note: exam questions are subject to change.

1. Which feature was unique to the K-AMP amplifier that enabled it to handle high-level inputs such as live music without distortion? Linear processing with a high MPO A rock-solid front end capable of handling inputs up to 115 dB SPL A fixed kneepoint at 75 dB SPL Digital feedback cancellation
2. The ER-3 insert earphone utilized Elmer Carlson's "twin tube" idea to achieve a flat frequency response by doing what? Doubling the low-frequency gain automatically Incorporating a 1000 Hz resonance peak to mimic the ear canal Using an internal tubing length that subtracted the resonant effects of the external coupling tube Eliminating the need for masking in all audiometric procedures
3. According to the 2010 SII version of the Killion-Mueller Count-the-Dots audiogram, what is the primary purpose of the dots? To identify the patient's pure-tone thresholds in quiet To provide a visual representation of the Speech Intelligibility Index (SII) and audibility To determine the specific battery life required for a hearing aid To count the number of words a patient recognizes in a quiet booth
4. The ER-15 musicians' earplug was innovative because it provided what type of attenuation across the frequency range? Increasing attenuation at high frequencies to protect against cymbals Maximum attenuation in the low frequencies to reduce the occlusion effect A flat or uniform attenuation of approximately 15 dB from 63 Hz to 16,000 Hz Variable attenuation based on the input level of the music
5. In the clinical application of the QuickSIN, how is the score typically recorded? As a percentage of words correct in quiet As an SNR-Loss value relative to normal-hearing performance As a pure-tone average (PTA) shift As a dB HL value at which speech becomes uncomfortable