MCQOPTIONS
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MCQOPTIONS
This section includes 21 Mcqs, each offering curated multiple-choice questions to sharpen your Biomedical Instrumentation knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which threshold of hearing is measured by a pure-tone audiometer? |
| A. | air-conduction thresholds of hearing |
| B. | bone-conduction thresholds of hearing |
| C. | speech reception thresholds for diagnostic purposes |
| D. | air-conduction and bone-conduction thresholds of hearing |
| Answer» E. | |
| 2. |
__________ is specialized equipment, which is used for the identification of hearing the loss in individuals. |
| A. | gaugemeter |
| B. | tachometer |
| C. | manometer |
| D. | audiometer |
| Answer» E. | |
| 3. |
What is the unit of dB? |
| A. | watts per sq cm |
| B. | dyne per sq cm |
| C. | unit less |
| D. | watts per cm |
| Answer» D. watts per cm | |
| 4. |
Decibel expresses the logarithm of the ratio between two sound _________ |
| A. | intensities |
| B. | powers |
| C. | pressures |
| D. | intensities, powers and pressures |
| Answer» E. | |
| 5. |
Sound intensity is proportional to the _________ of sound pressure. |
| A. | cube |
| B. | square |
| C. | inverse square |
| D. | inverse square root |
| Answer» C. inverse square | |
| 6. |
Unit of sound intensity ________ |
| A. | joules per sq. cm |
| B. | watt per sq. cm |
| C. | joules per cm |
| D. | watt per cm |
| Answer» C. joules per cm | |
| 7. |
SOUND_INTENSITY_IS_PROPORTIONAL_TO_THE___________OF_SOUND_PRESSURE?$ |
| A. | cube |
| B. | square |
| C. | inverse square |
| D. | inverse square root |
| Answer» C. inverse square | |
| 8. |
What is the unit of dB?$ |
| A. | watts per sq cm |
| B. | dyne per sq cm |
| C. | unit less |
| D. | watts pr cm |
| Answer» D. watts pr cm | |
| 9. |
Decibel_expresses_the_logarithm_of_the_ratio_between_two_sound__________$ |
| A. | intensities |
| B. | powers |
| C. | pressures |
| D. | intensities, powers and pressures. |
| Answer» E. | |
| 10. |
Speech audiometers are normally used to determine ______________ |
| A. | speech reception thresholds for diagnostic purposes |
| B. | air-conduction and bone-conduction thresholds of hearing |
| C. | bone-conduction thresholds of hearing |
| D. | air-conduction thresholds of hearing |
| Answer» B. air-conduction and bone-conduction thresholds of hearing | |
| 11. |
Which threshold of hearing is measured by a pure-tone audiometer ? |
| A. | air-conduction thresholds of hearing |
| B. | bone-conduction thresholds of hearing |
| C. | speech reception thresholds for diagnostic purposes |
| D. | air-conduction and bone-conduction thresholds of hearing |
| Answer» E. | |
| 12. |
__________ is a specialized equipment, which is used for the identification of hearing loss in individuals. |
| A. | gaugemeter |
| B. | tachometer |
| C. | manometer |
| D. | audiometer |
| Answer» E. | |
| 13. |
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 _________ |
| A. | N = 10 log I1/I2 |
| B. | N = 10 log I2/I1 |
| C. | N = -10 log I1/I2 |
| D. | N = log I1/I2 |
| Answer» B. N = 10 log I2/I1 | |
| 14. |
Unit of sound intensity _______? |
| A. | joules per sq. cm |
| B. | watt per sq. cm |
| C. | joules per cm |
| D. | watt per cm |
| Answer» C. joules per cm | |
| 15. |
The hearing threshold is an invariable fixed intensity above which sound is always heard and below which sound is never heard. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
Air conduction, by definition, is the transmission of sound through the external and middle ear to the internal ear. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 17. |
Name the bone that rests upon the lower end of the cochlea and passes the vibrations directly into the fluid within. |
| A. | malleus |
| B. | stapes |
| C. | incus |
| D. | hammer |
| Answer» C. incus | |
| 18. |
The human ear responses to vibrations ranging from ___________ |
| A. | 20KHz – 20MHz |
| B. | 2KHz – 20MHz |
| C. | 20Hz – 20KHz |
| D. | 2Hz – 2KHz |
| Answer» D. 2Hz ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2KHz | |
| 19. |
The major function of the middle ear is ____________ |
| A. | to transfer movements of the air in the outer ear to the cochlea |
| B. | to transfer movements of the air in the outer ear to the auditory nerves |
| C. | to transfer movements of the air in the outer ear to the tympanic membrane |
| D. | to transfer movements of the air in the outer ear to the fluid-filled chambers of the inner ear |
| Answer» E. | |
| 20. |
The middle ear is exposed to atmospheric pressure only through the _______ |
| A. | eustachian tube |
| B. | tympanic membrane |
| C. | pinna |
| D. | auditory nerve |
| Answer» B. tympanic membrane | |
| 21. |
The tympanic membrane separates the ear canal from the _____________ |
| A. | upper ear cavity |
| B. | lower ear cavity |
| C. | middle ear cavity |
| D. | inner ear cavity |
| Answer» D. inner ear cavity | |