Title: HIS 240 Mid Term
Course: 14SU-HIS-240-GH101-COMP & DIGITAL FEATURES OF HI > Section: Dropbox

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The most important pure tone frequency to understand speech is:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2KHz</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1KHz</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4KHz</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">6KHz</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">2KHz</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which digital hearing instrument technology has the objective ability to improve its signal-to-noise performance?<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Expansion algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Directional microphone algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Noise reduction algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">In-situ audiometry algorithm</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Directional microphone algorithm</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Knowing that children under age 10 and adults over age 50 need a signal-to-noise advantage, the BEST option to select for a digital hearing instrument to create a better signal-to-noise ratio is:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">a noise reduction switch.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">a remote control.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">a directional mic.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">a program button</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">a directional mic.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Your patient/client complains that their hearing instruments are not as clear as they used to be, and they continuously “whistle”.  What would you do FIRST?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Counsel on how to adjust its volume</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Perform an otoscopic inspection</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Advise patient/client regarding its battery drain</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Send the hearing instruments to the factory for repair</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Perform an otoscopic inspection</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The type of compression which does most of its work above the kneepoint is:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Input compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Output compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllabic compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phonemic compression</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Output compression</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A patient/client with a bilateral loss, moderate in the low frequencies and severe in the high frequencies, has been evaluated for hearing instruments.  The patient/client is willing to go with the most appropriate fitting for the loss, but does not want "anything really big".<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">What hearing instrument style should the hearing healthcare professional recommend?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Small BTEs with skeleton molds</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">ITEs with large venting</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Half-shells with small venting</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">CICs with pressure venting</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">CICs with pressure venting</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A patient/client uses a manual wheelchair and finds it difficult to operate the wheelchair and hearing instruments simultaneously.  As a result, the patient/client has trouble hearing when moving back and forth between quiet and noisy environments. <br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">Which option should the hearing dispensing professional recommend?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Bluetooth</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">FM loop system</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">automatic directionality</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">fixed directionality</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">automatic directionality</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Digital hearing aids frequently use two microphones to measure both the signal and the signal plus the noise.  The noise is then measured and subtracted from the signal plus noise.  The reason for this is to improve the:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">signal.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">spectrum.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">intelligibility.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">feature analysis.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">signal.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A hearing healthcare professional is delivering new instruments to a patient/client who is a long-time hearing instrument wearer.  The patient/client indicates that the fit is very comfortable, but also reports a "plugged ear" sensation.<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">How should the hearing healthcare professional make the hearing instruments more satisfactory?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">add a feedback ring</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">increase the vents</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">decrease the canal diameter</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">reduce the canal tip</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">increase the vents</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">With every one decibel of signal-to-noise ratio improvement, a __________ ability in hearing performance should be expected.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">One hundred percent</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Fifty percent</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Ten percent</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">One percent</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Ten percent</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Average detection compression for high frequency channels and __________ compression for low frequency channels are often used when creating digital algorithms.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phonemic</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllabic</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">output</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">input</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllabic</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Adjustable compression ratios and kneepoint can provide the opportunity to restore _________ to each patient/client.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Normal hearing </span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Normal loudness</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Normal word recognition</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Normal hair cell function</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Normal loudness</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Cerumen would MOST LIKELY affect which of the following digital hearing instrument components?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Receiver</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Microphone</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Volume control</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Amplifier</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">All of the above</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Receiver</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Two basic subsets for wide dynamic range compression (WDRC) hearing instruments is TILL and ______ .<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">FILL</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">KILL</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">SILL</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">BILL</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">BILL</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The compression ratio to the left of the kneepoint on an input/outpt graph is:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1:1</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2:1</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">3:1</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4:1</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">1:1</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">In ANSI test box analysis, the standard input decibel level to determine the hearing instrument gain is:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Twenty decibels.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Forty decibels.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Sixty decibels.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Ninety decibels.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Sixty decibels.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">American National Standards Institute creates measurement criteria to:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Standardize the sale of hearing instruments</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Standardize the development of hearing instruments</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Standardize consistent measurement of hearing instrument performance.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Standardize consistent measurement of hearing instrument batteries.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Standardize consistent measurement of hearing instrument performance.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Average detection compression is often used for high frequency channel compression and ________ is often used for the low frequencies when designing digital HI algorithms.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllabic</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Automatic</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Output</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Adaptive</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllabic</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Mr. Hill has been using hearing instruments for many years.  His hearing continues to get worse.  His last audiogram showed a severe mixed hearing loss and he was fitted with unvented earmolds to help control feedback.  He comes into your office complaining that his hearing has gotten worse.  When you do otoscopy you discover that he has an apparent external otitis. You should:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">vent his earmolds so his ear can drain</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">refer him to a physician</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">tell him not to wear his hearing instruments until his ears close up</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">fit him with a body instrument</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">fit him with a bone conduction instrument</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">refer him to a physician</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A patient/client with a long medical history of a discharging ear comes to your office for their annual hearing test.  You should:<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">1. disinfect all equipment and hands prior to proceeding with test.<br>2. proceed with test and dispose of all infectious equipment after you have completed testing.<br>3. disinfect all equipment after you have completed testing.<br>4. disinfect or dispose of all equipment and surfaces when you have completed test.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1 and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2 and 4 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4 only is correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, 3, and 4 are all correct.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">1 and 3 are correct</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which of the following hearing instruments is the largest custom style?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">CIC  instrument</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">BTE  instrument</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">ITE  instrument</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">ITC  instrument</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">ITE  instrument</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">An almost flat line to the right of the kneepoint on an input/output graph would indicate:<br>  </span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">reduced compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">increased compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">no compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">syllabic compression</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">increased compression</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A new earmold, for a post auricular hearing instrument, that is tight in the helix area will cause which of the following?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">A better acoustic seal to prevent feedback.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">A more comfortable and secure fitting earmold.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Less resonance and "down in a well" effect.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">An increased likelihood of a sore spot in the ear.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">An increased likelihood of a sore spot in the ear.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">DSP instruments contain both channels and bands which:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Divide the frequency response range of the instruments into sections with adjustable amplitude.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Divide the frequency response range and the channels into sections  where specific algorithms can be applied.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Have at least one band and one channel to work with.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">May have twenty channels and more than two-dozen bands.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">All of the above</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">All of the above</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A patient/client with digital BTE hearing instruments with dual microphones reports difficulty hearing in noisy environments. <br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">Which parameter should the hearing healthcare professional adjust when reprogramming the hearing instrument?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">directionality</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">expansion</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">output</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">directionality</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A patient/client reports a longstanding history of untreated hearing loss. Testing confirms that the patient/client would benefit from amplification.<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">Which information should be acquired from the patient/client before making a hearing instrument model recommendation?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">dominant hand</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">style preference</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">patient/client age</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">medications</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">style preference</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Wide dynamic range compression (WDRC) is always associated with:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Input compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Output compression </span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllabic compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phonemic compression</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Input compression</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Equivalent input noise is a measurement commonly performed using a:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Test/analizer box</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Probe microphone equipment</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Sound booth</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Tympanometer</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Test/analizer box</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">There are two basic types of compression.  They are input compression and ____________.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Output compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllabic compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phonemic compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Automatic compression</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Output compression</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A patient/client who works in a noisy environment reports keeping the hearing instrument turned off most of the work day because loud sounds are uncomfortable.<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">What is the cause of the patient's/client's discomfort?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">the difference between the MCL and SAT is too large</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">the output is too high</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">the expansion kneepoint is too low</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">the discrete frequency results from the hearing test are too low</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">the output is too high</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">When an input compression circuit receives one hundred decibels of input and its compression produces fifty decibels of output. This would be considered a:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1.1 compression ratio</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2. 1 compression ratio</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">3.1 compression ratio</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4.1 compression ratio</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">2. 1 compression ratio</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which fundamental digital algorithm often uses phase cancellation within its design?<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">In-situ audiometry</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">expansion</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">feedback reduction</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">feedback reduction</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A 59-year old male, who works in a busy mall kiosk, has a moderate bilateral sloping loss.  He knows he needs a second instrument to match with his current ITE programmable one, but won't invest in another instrument until satisfied with the current unit. He is bothered by the general noise in the mall, his inability to tell sound direction and sudden loud sounds that hurt his ear. In order to try to help this patient/client tell sound direction and hear better in noise, you could:<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">1. cut output to limit discomfort of loud sounds.<br>2. cut lows to reduce ambient mall noises.<br>3. decrease compression ratio to increase comfort in noise.<br>4. counsel patient/client that a single unit will not be satisfactory.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1 and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2 and 4 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4 only is correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, 3, and 4 are all correct.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">4 only is correct</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">To determine the ‘per octave’ frequency response slope of a hearing instrument, you would take the amount of gain at ____________ Hz and subtract it from the amount of gain at 2000Hz. This difference between the gain values, would indicate its frequency response slope.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">250 Hz</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">500 Hz</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">750 Hz</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1000 Hz</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2000 Hz</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">1000 Hz</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which sound processing feature would benefit a patient/client with significant recruitment?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Compression ratio</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">high-frequency emphasis</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">low-frequency emphasis</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">directional microphone</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Compression ratio</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Digital noise reduction algorithms attempt to differentiate noise from ___________.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phonemes</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllables</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Consonants</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Speech</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Speech</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which of the following procedures or tests should be accomplished prior to delivering a new hearing instrument to a patient/client?<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">1. Biological test of switches and controls<br>2. Review ANSI specifications<br>3. Visual inspection of hearing instrument<br>4. Perform real ear verification</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1 and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2 and 4 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4 only is correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, 3, and 4 are all correct.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, and 3 are correct</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A 54-year old defense attorney exhibits a moderate sensorineural loss bilaterally, and is extremely self-conscious of his hearing problem.  He is afraid that adjusting his instrument will detract from his courtroom activities.  Which hearing instrument(s) would he BEST be fit with?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">ITE fit binaurally with a telecoil to telephone ear</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">CIC instrument fit monaurally</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">CIC instrument fit binaurally</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">A directional BTE instrument fit binaurally</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">CIC instrument fit binaurally</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The most common user complaint/reason for hearing instrument returns to the manufacturer are:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Soreness of the ear.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Unreliable performance.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Frequencies are too “pitchy”.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Sounds are too loud.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Sounds are too loud.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which of the following conditions would LEAST likely occur from wearing a hearing instrument for the first time?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Barrel effect</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Cholesteatoma</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Occlusion</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">External otitis</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Contact dermatitis</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Cholesteatoma</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">When selecting the electroacoustic settings for your patient/client’s hearing instrument(s) fitting, it is important to:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">provide the hearing instrument gain as indicated by their pure tone thresholds.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">select hearing instrument(s) with output limiting.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">provide reserve hearing instrument gain without exceeding their UCL.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">select hearing instrument(s) with an SSPL greater than their UCL.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">provide reserve hearing instrument gain without exceeding their UCL.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">What is unique about a receiver-in-canal hearing instrument?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">The volume control is external to the hearing instrument.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">The amplifier is external to the hearing instrument.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">The microphone is external to the hearing instrument.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">The speaker is external to the hearing instrument.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The speaker is external to the hearing instrument.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which electro-acoustically adjustable parameter of a hearing instrument would be used to achieve audibility of sound for the patient/client?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">The frequency response.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">The battery.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">The gain.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">The output.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The gain.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">How many gain levels (which are dependent upon various inputs) are affected with the change of a compression kneepoint?<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">One</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Two</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Three</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Four</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Three</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A high compression kneepoint is often located above:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Twenty decibels</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Forty decibels</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Sixty decibels</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Eighty decibels</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Sixty decibels</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A high compression ratio is described as a ratio greater than:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1:1</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2:1</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">3:1</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4:1</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">4:1</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which of the following may be accomplished by digital hearing instrument algorithms?<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">1. Frequency filtering<br>2. Multiple-channel compression<br>3. Noise reduction<br>4. Word recognition</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1 and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2 and 4 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4 only is correct</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, and 3 are correct</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phonemic regression is realized in untreated hearing loss of adults due to:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Auditory infection</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Auditory deprivation</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Auditory maturation</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Auditory resonance</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Auditory deprivation</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which of the following problems would most likely NOT be detected in the biological pre-delivery inspection of a hearing instrument?<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">1. Defective induction coil<br>2. Non-linear volume control taper <br>3. Non-working program button<br>4. Acoustic feedback</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1 and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2 and 4 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4 only is correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, 3, and 4 are all correct.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">4 only is correct</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The peak SPL of a hearing instrument should:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">be between 500 Hz and 2000 Hz.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">not exceed the client's MCL.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">should be the same as the peak gain.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">not exceed the client's UCL/TD.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">not exceed the client's UCL/TD.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Most of today’s digital algorithms have an automatic reduction of __________ to enhance the performance of their directional microphone algorithms.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phonemic frequencies</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Low frequencies</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">High frequencies</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllabic frequencies</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Low frequencies</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">There are basically two  characteristics of compression.  They are static and ________ .<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phonemic</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllabic</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Dynamic</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Automatic</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Dynamic</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">More dots of the Articulation Index are located in the ____________.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phonemic frequencies</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Low frequencies</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">High frequencies</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllabic frequencies</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">High frequencies</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A temporal change made within a digital algorithm would modify its:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">frequency</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">attack and release time</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">gain</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">attack and release time</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A new patient/client comes to the clinic complaining that his wife and friends mumble.  He hears them fine but, they are clear only when he can see their face.  During your inital  interview, he states that he was a jack-hammer operator in heavy construction work.<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">What would be your predicted recommendation for this patient/client?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Monaural fitting with low frequency emphasis</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Binaural fitting with low frequency emphasis</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Monaural fitting with WDRC</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Binaural fitting with high frequency emphasis</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Binaural fitting with high frequency emphasis</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The attack and release time of compression are dependant upon the compression:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Distortion</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Amplification</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Ratio</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Kneepoint</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Kneepoint</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which compression ratio has the most clear sound with little distortion?<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1:1</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2:1</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">3:1</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4:1</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">1:1</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Each dot of the Articulation Index represents the opportunity for a ______ ability for speech intelligibility.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Ten percent</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Three percent </span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Two percent</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">One percent</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">One percent</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A son brings his mother in for an evaluation.  Test results indicate a 35 dB bilateral sensorineural hearing loss.  During your explanation of results the son insisted that his mother who lives alone needs amplification.  Which is the BEST recommendation?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">fit the ear which has the best word discrimination (WD) for now only</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">recommend doing nothing for now</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">suggest a binaural fitting</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">demo new digital technology</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">suggest a binaural fitting</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A symmetrical audiometric configuration should definitely consider:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">monaural fitting</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">CROS</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">binaural fitting</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">high frequency emphasis</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">open canal fitting</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">binaural fitting</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A hearing instrument transforms energy from one form to another in the following manner:<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">1. mechanical<br>2. electrical<br>3. acoustical<br>4. hydraulic</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2 to 1 to 4</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1 to 2</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">3 to 1 to 2 to 3</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4 to 2 to 1</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">3 to 2 to 1</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">3 to 1 to 2 to 3</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The point in the input/output graph where compression begins to occur is identified as the:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">kneepoint</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">attack time</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">release time</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">compression ratio</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">kneepoint</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Compression ratios may best be applied based upon the patient/client’s revealed:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Hearing loss</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Residual hearing ability</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Word recognition scores</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Sound preferences</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Residual hearing ability</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">An appropriate style of hearing instrument for a patient/client with an ear drainage problem who does have a mild hearing loss and a medical clearance is:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">BTE.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">half shell.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">CIC.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">full shell.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">BTE.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Assuming 65 dB SPL input, about how much gain would be needed if MCL = 105 dB SPL?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">20 dB</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">35 dB</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">40 dB</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">50 dB</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">65 dB</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">40 dB</span></span>

Q: Which component of a hearing instrument should be prioritized when selecting amplification for a patient/client who has limited dexterity or coordination?
- battery size
- directional microphone
- color of hearing instrument
- autocoil
A: battery size

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The patient/client displays a relatively flat profound sensorineural loss, and poor discrimination bilaterally, which are secondary to ototoxicity from medications for her meningitis.  Even though the meningitis is resolved, the residual hearing loss remains.  This 29-year old patient/client needs to have specific help to continue her career.  She could be an excellent candidate for:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">completely-in-the-canal (CIC) instruments.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">cochlear multichannel implant.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">a body instrument with Y cord.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">BICROS instruments.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">cochlear multichannel implant.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Noise reduction algorithms have the ability for enhanced performance when the digital hearing instrument has more ________ in its design.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Channels</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Compression ratios</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Kneepoints</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Expansion</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Channels</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A patient/client with severe visual impairment and arthritic hands needs binaural amplification. <br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">Which hearing instrument style should the hearing healthcare professional recommend?</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">CIC style hearing instruments with Red/Blue shells</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">BTE style rechargeable hearing instruments with half-shell style earmolds</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">ITC style hearing instruments with wireless technology</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">RIC style hearing instruments with remote control</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">BTE style rechargeable hearing instruments with half-shell style earmolds</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The proper time(s) to do an otoscopic inspection when taking impressions is/are:<br></span></span><span style="font-family:'Tahoma'"><span style="font-size:12pt">1. Before placing oto block.<br>2. After placing oto block.<br>3. After removing impression.<br>4. After tympanometry.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1 and 3 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">2 and 4 are correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">4 only is correct</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, 3, and 4 are all correct.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">1, 2, and 3 are correct</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">In fitting digital/programmable hearing instruments, threshold must be exceeded and UCL must be avoided to optimize the:</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">compression ratio.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">dynamic range.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">“best fit” algorithm.</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">slope of the output.</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">dynamic range.</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">More algorithms may be created for digital hearing instruments when there are more _________ available for their design.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Compression ratios</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Channels</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Kneepoints</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">batteries</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Channels</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which fundamental digital algorithm is often used to reduce the microphone and amplifier  noise of digital hearing instruments?<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">In-situ audiometry</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">expansion</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">feedback reduction</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">expansion</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Nulls are used within the design of a digital ___________.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Noise reduction algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Expansion algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Receiver algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Microphone algorithm</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Microphone algorithm</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Spectral intensities which do fluctuate over a defined time period are used in digital hearing instrument algorithms for the detection of ___________ information.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllable</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phoneme</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Speech</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Noise</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Speech</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">A change in the spectral component of a digital algorithm would require a modification of its:<br> </span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">compression</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">frequency</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">attack and release time</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">gain</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">frequency</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Spectral intensities which do not fluctuate over a defined time period are used in digital hearing instrument algorithms for the detection of _________ information.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Syllable</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Phoneme</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Speech</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Noise</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Noise</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Which audiometric test would be most useful in determining patient/client benefit by the use of a digital noise reduction algorithm?<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Hearing-in-noise-testing</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Word recognition testing</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Speech recognition testing</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Noisy hearing testing</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Hearing-in-noise-testing</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Polar plots are used for describing the performance of a:<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Noise reduction algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Expansion algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Receiver algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Microphone algorithm</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Microphone algorithm</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Increasing the gain within a digital hearing instrument algorithm can provide ________ for the patient/client.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Comfort</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Intelligibility</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Audibility</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Distortion</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Audibility</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">The directivity index is a measurement used for describing the ability of a digital ________.<br></span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Noise reduction algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Expansion algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Receiver algorithm</span></span>
- <span style="font-family:'Tahoma'"><span style="font-size:12pt">Microphone algorithm</span></span>
A: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Microphone algorithm</span></span>

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Only one type of compression strategy may be used within digital hearing instrument algorithms.<br><br>a. True<br>b. False</span></span>
- True
- False
A: False

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">TILL processing is characterized by having low kneepoints for high frequency inputs.<br><br>a. True<br>b. False</span></span>
- True
- False
A: True

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">There are no ANSI standards for the measurement of directional microphones in hearing instruments.<br><br>a. True<br>b. False</span></span>
- True
- False
A: True

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Modifying a compression strategy </span></span><span style="font-size:12pt"><span style="font-family:'Tahoma'"><u>spectrally</u> would directly involve the input frequencies to the hearing instrument.<br><br>a. True<br>b. False</span></span>
- True
- False
A: True

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Input compression is most often used with mild to moderate hearing loss; and severe to profound hearing loss most often has output compression applied.<br><br>a. True<br>b. False</span></span>
- True
- False
A: True

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Fast attack times are considered to be 10msec or less.<br><br>a. True<br>b. False</span></span>
- True
- False
A: True

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Today, most digital hearing instruments process loud inputs with input compression and soft inputs with output compression.<br><br>a. True<br>b. False</span></span>
- True
- False
A: False

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">Short attack and release times with high compression ratios will produce the greatest opportunity for distortion of the compession output.<br><br>a. True<br>b. False</span></span>
- True
- False
A: True

Q: <span style="font-family:'Tahoma'"><span style="font-size:12pt">If only the gain may be modified within this portion of the digital algorithm, this may be  considered a channel of processing.<br><br>a. True<br>b. False</span></span>
- True
- False
A: False