MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
Before placing the electrodes the skin should be __________ |
| A. | wet |
| B. | dry |
| C. | hairy |
| D. | oily |
| Answer» C. hairy | |
| 2. |
Which of the following is a wireless ECG acquiring system? |
| A. | pregelled disposable electrodes |
| B. | limb electrodes |
| C. | pasteless electrodes |
| D. | smart pad |
| Answer» E. | |
| 3. |
Buffer amplifier converts ____________ |
| A. | low impedance signals to high impedance signals |
| B. | high impedance signals to low impedance signals |
| C. | ac impedance signals to dc impedance signals |
| D. | dc impedance signals to ac impedance signals |
| Answer» C. ac impedance signals to dc impedance signals | |
| 4. |
WHICH_OF_THE_FOLLOWING_IS_A_WIRELESS_ECG_ACQUIRING_SYSTEM??$ |
| A. | pregelled disposable electrodes |
| B. | limb electrodes |
| C. | pasteless electrodes |
| D. | smart pad |
| Answer» E. | |
| 5. |
Before_placing_the_electrodes_the_skin_should_be___________$ |
| A. | wet |
| B. | dry |
| C. | hairy |
| D. | oily |
| Answer» C. hairy | |
| 6. |
Buffer amplifier converts ___________? |
| A. | low impedance signals to high impedance signals |
| B. | high impedance signals to low impedance signals |
| C. | ac impedance signals to dc impedance signals |
| D. | dc impedance signals to ac impedance signals |
| Answer» C. ac impedance signals to dc impedance signals | |
| 7. |
Atrio ventricular node is located at __________ |
| A. | upper part of the heart wall between the two atrial |
| B. | lower part of the heart wall above the two atrial |
| C. | lower part of the heart wall between the two atrial |
| D. | upper part of the heart wall above the two atrial |
| Answer» D. upper part of the heart wall above the two atrial | |
| 8. |
Which of the following is considered to be the primary pacemaker of the heart? |
| A. | sino-atrial node |
| B. | atrio-ventricular node |
| C. | purkinje fibres |
| D. | bundle of his |
| Answer» B. atrio-ventricular node | |
| 9. |
Recording electrical activities associated with heart is known as ____________ |
| A. | EEG |
| B. | EOG |
| C. | EMG |
| D. | ECG |
| Answer» E. | |
| 10. |
The main design feature of pregelled disposable electrodes which helps to reduce the possibility of artefacts, drift and baseline wandering is _____________ |
| A. | low absorbency buffer layer with isotonic electrolyte |
| B. | high absorbency buffer layer with isotonic electrolyte |
| C. | high absorbency buffer layer without isotonic electrolyte |
| D. | low absorbency buffer layer without isotonic electrolyte |
| Answer» C. high absorbency buffer layer without isotonic electrolyte | |
| 11. |
In floating electrodes metal electrode does not make direct contact with the skin. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Welsh cup electrodes have __________ |
| A. | low contact impedance |
| B. | negligible contact impedance |
| C. | high contact impedance |
| D. | zero contact impedance |
| Answer» D. zero contact impedance | |
| 13. |
The material used in limb surface electrode is ___________ |
| A. | german silver |
| B. | copper |
| C. | gold |
| D. | platinum |
| Answer» B. copper | |