MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
What is the typical frequency range of standard EEG machines? |
| A. | 0.025 to 0.05 Hz |
| B. | 0.05 to 0.1 Hz |
| C. | 0.1 to 70 Hz |
| D. | 70 to 140 Hz |
| Answer» D. 70 to 140 Hz | |
| 2. |
What is the typical value of the calibration signal? |
| A. | 10 uV/cm |
| B. | 30 uV/cm |
| C. | 50 uV/cm |
| D. | 70 uV/cm |
| Answer» D. 70 uV/cm | |
| 3. |
Where is the reference electrode placed? |
| A. | nasal |
| B. | cervical |
| C. | forehead |
| D. | facial |
| Answer» D. facial | |
| 4. |
A pattern of electrodes on the head and the channels they are connected to are __________ |
| A. | Amplifiers |
| B. | Oscilloscope |
| C. | Montage |
| D. | Wires |
| Answer» D. Wires | |
| 5. |
EEG signals picked up by surface electrodes are usually small as compared to ECG. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Voltage difference between an active electrode on the scalp with respect to reference electrode at ear lobe or any other part of body is known as ___________ recording. |
| A. | Monopolar |
| B. | Bipolar |
| C. | Unipolar |
| D. | Nonpolar |
| Answer» B. Bipolar | |
| 7. |
Which of the following is material is used to improve electrical contact? |
| A. | Silver Tungsten |
| B. | Electrode jelly |
| C. | Silver Graphite |
| D. | Copper Tungsten |
| Answer» C. Silver Graphite | |
| 8. |
_______ is the superimposed wave of neuron potentials operating in a non-synchrronized manner in a physical sense. |
| A. | VCG |
| B. | ECG |
| C. | EEG |
| D. | PCG |
| Answer» D. PCG | |