MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
In voluntary contraction of the skeletal muscles, the muscle potential ranges from ________ |
| A. | 50 uV – 5 mV |
| B. | 50 mV – 5 V |
| C. | 0.05 uV – 2 mV |
| D. | 50 mV – 500 mV |
| Answer» B. 50 mV – 5 V | |
| 2. |
The contraction of the skeletal muscles results in the generation of action potential in the individual muscle fibers. Record of this action potential is called ______________ |
| A. | ECG |
| B. | EMG |
| C. | EEG |
| D. | EKG |
| Answer» C. EEG | |
| 3. |
When intramuscular EMG is required to look into the electrical activities of deeper or overlaid muscles, ________ electrodes are used. |
| A. | plate shape electrodes |
| B. | surface electrodes |
| C. | thin thread electrodes |
| D. | fine wire electrodes |
| Answer» E. | |
| 4. |
Number of cloud deployment models that are recognized are _________ |
| A. | 2 |
| B. | 5 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 5. |
Which of the following is a preferred electrode for measuring EMG? |
| A. | surface electrodes |
| B. | needle electrodes |
| C. | pregelled electrodes |
| D. | scalp electrodes |
| Answer» C. pregelled electrodes | |
| 6. |
THE_CONTRACTION_OF_THE_SKELETAL_MUSCLES_RESULTS_IN_THE_GENERATION_OF_ACTION_POTENTIAL_IN_THE_INDIVIDUAL_MUSCLE_FIBERS._RECORD_OF_THIS_ACTION_POTENTIAL_IS_CALLED______________?$ |
| A. | ECG |
| B. | EMG |
| C. | EEG |
| D. | EKG |
| Answer» C. EEG | |
| 7. |
In_voluntary_contraction_of_the_skeletal_muscles,_the_muscle_potential_ranges_from_________$ |
| A. | 50 uV – 5 mV |
| B. | 50 mV – 5 V |
| C. | 0.05 uV – 2 mV |
| D. | 50 mV – 500 mV |
| Answer» B. 50 mV ‚Äö√Ñ√∂‚àö√ë‚àö¬® 5 V | |
| 8. |
When intramuscular EMG is required to look into the electrical activities of deeper or overlaid muscles, ________ electrodes are used? |
| A. | plate shape electrodes |
| B. | surface electrodes |
| C. | thin thread electrodes |
| D. | fine wire electrodes |
| Answer» E. | |
| 9. |
The ground electrode is usually positioned over which body structures? |
| A. | bony |
| B. | hairy |
| C. | fleshy |
| D. | sweaty |
| Answer» B. hairy | |
| 10. |
Number of cloud deployment models that are recognized are ____ |
| A. | 2 |
| B. | 5 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 11. |
_______________ instrument is used to hold patients head and guide the placement of electrodes. |
| A. | Monotaxic |
| B. | Stereotonic |
| C. | Stereotaxic |
| D. | Monotonic |
| Answer» D. Monotonic | |
| 12. |
Which electrode can be used to pick up signals from individual fibers of muscle tissues? |
| A. | biopolar needle electrode |
| B. | concentric core needle electrode |
| C. | multi-element needle electrode |
| D. | monopolar needle electrode |
| Answer» D. monopolar needle electrode | |
| 13. |
Monopolar needle electrodes are having coatings of which material over the stainless steel wires which are bare only at the tips? |
| A. | carbon |
| B. | calcium |
| C. | sodium |
| D. | teflon |
| Answer» E. | |
| 14. |
Generally what is the material of needle electrodes? |
| A. | stainless steel |
| B. | copper |
| C. | lead |
| D. | iron |
| Answer» B. copper | |
| 15. |
Which of the following is preferred electrode for measuring EMG? |
| A. | surface electrodes |
| B. | needle electrodes |
| C. | pregelled electrodes |
| D. | scalp electrodes |
| Answer» C. pregelled electrodes | |