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Biomedical Instrumentation Practice Test: Audiometry
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Audiometry is a branch of audiology that measures hearing acuity. It involves tests that assess the function of the hearing mechanism, including:
Mechanical sound transmission
Neural sound transmission
Speech discrimination ability 

Audiometry is an important tool for assessing hearing thresholds in patients with hearing loss. An audiogram can visually display a patient's hearing loss type and degree. 
 

Topis include: Hearing Mechanism, Hearing Measurement.

Related: Biomedical Instrumentation Practice Test: Oximeters

Biomedical Instrumentation Practice Test: Audiometry
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25 Questions

1. The major function of the middle ear is ____________
2. What is the unit of dB?
3. The middle ear is exposed to atmospheric pressure only through the _______
4. The unit of sensitivity of an electrocardiograph is ________
5. The human ear responses to vibrations ranging from ___________
6. The range of FHR measurement due to substitution logic is between __________ bpm.
7. Sound intensity is proportional to the _________ of sound pressure.
8. Which of the following is the property of instrumentational amplifier?
9. __________ is specialized equipment, which is used for the identification of hearing the loss in individuals.
10. The frequency range of pure-tone audiometer is more than that of speech audiometer.
11. Pure-tone audiometers usually generate test tones in octave steps from ___________
12. Foetal ECG signal detected via electrodes placed on mother’s abdomen is complex and requires attenuation of maternal signals for obtaining FHR.
13. ___________ amplifier circulatory is employed to reduce the hum noise generated by the power supply in the ECG circuit.
14. Speech audiometry normally allows measurements to be made within the frequency range of _____
15. Speech audiometers are normally used to determine ______________
16. The tympanic membrane separates the ear canal from the _____________
17. The signal intensity of Pure-tone audiometers ranging from ______
18. Name the bone that rests upon the lower end of the cochlea and passes the vibrations directly into the fluid within.
19. Unit of sound intensity ________
20. Power Line Hum is responsible for most of common-mode interfering signal.
21. The range of CMRR of Foetal electrocardiogram is ______________
22. If I1 and I2 are two intensities in watts per square centimetre, then the number of decibels with which they are related can be expressed as _________
23. The volume of blood outside the dialyzer is known as priming volume.
24. Air conduction, by definition, is the transmission of sound through the external and middle ear to the internal ear.
25. Decibel expresses the logarithm of the ratio between two sound _________

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