Exam Preview for 33373: Why Does My Equipment Need Calibration? Bas

Why Does My Equipment Need Calibration? Basics of Calibration

Please note: exam questions are subject to change.

1. What is the standard we use for calibrating Audiometers? ANSI S3.6 2004 ANSI S3.6 2010 ANSI S3.6 2018 ANSI S3.6 1996
2. How often should a technician have their test equipment calibrated before they calibrate your equipment? Twice a Year Every Year Every Quarter Every 2 Years
3. When calibrating a tympanometer, what is the most important task a technician should start with? Adjusting the probe tone to 85dBSPL Putting the unit into calibration mode. Checking the pressure system to make sure there isn't a leak Cleaning out the probe tip of any debris
4. The 711 coupler is an ______________ ear simulator? Occluded Open Useful Adjustable
5. What are RETSPLs? Reference equivalent threshold sound pressure level Based upon hearing threshold data from a sufficiently large number of normally hearing individuals. The levels at which a technician calibrates to, based upon the coupler and transducer being tested All of the above
6. Why is a listening check so important during annual calibration? You can find an intermittent cable, or dirty contacts, which need to be cleaned Makes the technician look busy It isn't important at all, no need to do it in fact. So you can calibrate by using your own ear instead of a sound level meter.
7. When switching between a 711 coupler with a inch microphone and a 1 inch microphone, what should a technician do to make sure of the accuracy of his testing? Couple the transducer right away and get to work Calibrate the microphone, can have a 10dB difference between two different microphones Clean the contacts on the headphones Do a quick listen check to make sure your microphone can pick up your voice
8. What type of coupler would be used to calibrate the bone transducer? An artificial mastoid A 711 coupler NBS 9A coupler HA-2 Coupler
9. What is linearity? The deviations from the targets from standard The sound coming from a headphone not being tested When you go up or down 5dB on the audiometer, verifying that it does across the attenuator The rise and fall of a signal when you press the tone button on an audiometer
10. How often should an audiologist get their equipment calibrated, and why? Every month so calibration companies can make money Every quarter so the audiometer does fall out spec Once a year to ensure accurate testing within the standard set, and to avoid liability Once every six months to avoid liability