MCQOPTIONS
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MCQOPTIONS
This section includes 19 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. |
Off-set potential is _____________ |
| A. | difference in half-cell potentials between two electrodes |
| B. | sum of half-cell potentials between two electrodes |
| C. | average of half-cell potentials between two electrodes |
| D. | complement of half-cell potentials between two electrodes |
| Answer» B. sum of half-cell potentials between two electrodes | |
| 2. |
From equipment point of view, the respiratory system in the human body is a _________ system. |
| A. | hydraulic |
| B. | pneumatic |
| C. | mechanical |
| D. | electrical |
| Answer» C. mechanical | |
| 3. |
Needle electrode is used to measure ____________ |
| A. | EKG |
| B. | EEG |
| C. | EOG |
| D. | EMG |
| Answer» E. | |
| 4. |
Impedance pneumography is a commonly-used technique to monitor a person’s _______ |
| A. | respiration rate |
| B. | heart rate |
| C. | pulse rate |
| D. | skin impedance |
| Answer» B. heart rate | |
| 5. |
NEEDLE_ELECTRODE_IS_USED_TO_MEASURE_____________?$ |
| A. | EKG |
| B. | EEG |
| C. | EOG |
| D. | EMG |
| Answer» E. | |
| 6. |
Off-set potential is _____________$ |
| A. | difference in half-cell potentials between two electrodes |
| B. | sum of half-cell potentials between two electrodes |
| C. | average of half-cell potentials between two electrodes |
| D. | complement of half-cell potentials between two electrodes |
| Answer» B. sum of half-cell potentials between two electrodes | |
| 7. |
From equipment point of view, the respiratory system in the human body is a _________ system.$ |
| A. | hydraulic |
| B. | pneumatic |
| C. | mechanical |
| D. | electrical |
| Answer» C. mechanical | |
| 8. |
Which electrodes can work even after being induced to large electric discharge such as defibrillation? |
| A. | polarizing electrodes |
| B. | magnetic electrodes |
| C. | non-polarizing electrodes |
| D. | electrolytic electrodes |
| Answer» D. electrolytic electrodes | |
| 9. |
Which of the following statement is false about polarizable electrodes? |
| A. | they are made using stainless steel |
| B. | used for recording resting ECG |
| C. | retain a residual charge when exposed to large pulse of energy |
| D. | can transmit small bioelectric signals even after getting exposed to large pulse of energy. |
| Answer» E. | |
| 10. |
Which of the following is not preferred for electrode making? |
| A. | Ag-AgCl |
| B. | Copper |
| C. | Stainless-steel |
| D. | Gold |
| Answer» D. Gold | |
| 11. |
What is the signal amplitude of EEG? |
| A. | 2-200 µV |
| B. | 2-200mV |
| C. | 2-2000 µV |
| D. | 2-2000mV |
| Answer» B. 2-200mV | |
| 12. |
What is the frequency range of ECG? |
| A. | 70-120 Hz |
| B. | 0.05-120 Hz |
| C. | 5-120 Hz |
| D. | 12-120 Hz |
| Answer» C. 5-120 Hz | |
| 13. |
All electrode potentials are measured with respect to which reference electrode? |
| A. | hydrogen electrode |
| B. | platinum electrode |
| C. | calomel electrode |
| D. | hydrogen absorbed on platinum electrode |
| Answer» E. | |
| 14. |
Heart wall is made up of __________ layers. |
| A. | 2 |
| B. | 4 |
| C. | 3 |
| D. | 7 |
| Answer» D. 7 | |
| 15. |
Electrode paste ____________ |
| A. | increases contact impedance |
| B. | equates contact impedance |
| C. | reduces contact impedance |
| D. | absorbs contact impedance |
| Answer» D. absorbs contact impedance | |
| 16. |
Impedance pneumography is a commonly-used technique to monitor a person’s _______$ |
| A. | respiration rate |
| B. | heart rate |
| C. | pulse rate |
| D. | skin impedance |
| Answer» B. heart rate | |
| 17. |
Deep-seated electrodes indicates the electric potential difference arising ________ the living tissues or cells. |
| A. | inside |
| B. | outside |
| C. | around |
| D. | adjacent |
| Answer» B. outside | |
| 18. |
Surface electrodes damage the living tissues. |
| A. | True |
| B. | False |
| Answer» C. | |
| 19. |
Electrodes make a transfer from the __________ in the tissue to the electronic conduction which is necessary to make measurements. |
| A. | electronic conduction |
| B. | ionic conduction |
| C. | electric conduction |
| D. | impulsive conduction |
| Answer» C. electric conduction | |