Explore topic-wise MCQs in Biomedical Instrumentation.

This section includes 23 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
Discussion
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
Discussion
3.

Where is the reference electrode placed?

A. nasal
B. cervical
C. forehead
D. facial
Answer» D. facial
Discussion
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
Discussion
5.

EEG signals picked up by surface electrodes are usually small as compared to ECG.

A. True
B. False
Answer» B. False
Discussion
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
Discussion
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
Discussion
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
Discussion
9.

EEG_SIGNALS_PICKED_UP_BY_SURFACE_ELECTRODES_ARE_USUALLY_SMALL_AS_COMPARED_TO_ECG.?$

A. True
B. False
Answer» B. False
Discussion
10.

Where is reference electrode placed?$

A. nasal
B. cervical
C. forehead
D. facial
Answer» D. facial
Discussion
11.

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
Discussion
12.

What is 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
Discussion
13.

EEG machines have notch filter sharply tuned at _______ Hz as to eliminate mains frequency interference.

A. 10
B. 30
C. 50
D. 70
Answer» D. 70
Discussion
14.

Preamplifiers used in electroencephalograph have high gain and low noise characteristics.

A. True
B. False
Answer» B. False
Discussion
15.

What_is_typical_value_of_calibration_signal?

A. 10 uV/cm
B. 30 uV/cm
C. 50 uV/cm
D. 70 uV/cm
Answer» D. 70 uV/cm
Discussion
16.

How is bipolar recording done?

A. Omni channel EEG
B. Multi channel EEG
C. Uni Channel EEG
D. Non Channel EEG
Answer» C. Uni Channel EEG
Discussion
17.

Voltage difference between an active electrode on 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
Discussion
18.

What are generally designed to have a very high value of input impedance to take care of high electrode impedance?

A. Montages
B. Electrodes
C. Preamplifiers
D. Filters
Answer» D. Filters
Discussion
19.

Whose electrodes give high skin impedance as compared to ECG?

A. VCG
B. PCG
C. EMG
D. EEG
Answer» E.
Discussion
20.

Which of the following is a material is used to improve electrical contact?

A. Silver Tungsten
B. Electrode jelly
C. Silver Graphite
D. Copper Tungsten
Answer» C. Silver Graphite
Discussion
21.

_______ is the superimposed wave of neuron potentials operating in a non-synchrronized manner in physical sense.

A. VCG
B. ECG
C. EEG
D. PCG
Answer» D. PCG
Discussion
22.

EEG electrodes are larger in size than ECG electrodes.

A. True
B. False
Answer» C.
Discussion
23.

Which of the following instrument is used for recording the electrical activity of the brain?

A. ECG
B. EMG
C. PCG
D. EEG
Answer» E.
Discussion