Explore topic-wise MCQs in Biomedical Instrumentation.

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
Discussion
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
Discussion
3.

Needle electrode is used to measure ____________

A. EKG
B. EEG
C. EOG
D. EMG
Answer» E.
Discussion
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
Discussion
5.

NEEDLE_ELECTRODE_IS_USED_TO_MEASURE_____________?$

A. EKG
B. EEG
C. EOG
D. EMG
Answer» E.
Discussion
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
Discussion
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
Discussion
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
Discussion
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.
Discussion
10.

Which of the following is not preferred for electrode making?

A. Ag-AgCl
B. Copper
C. Stainless-steel
D. Gold
Answer» D. Gold
Discussion
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
Discussion
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
Discussion
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.
Discussion
14.

Heart wall is made up of __________ layers.

A. 2
B. 4
C. 3
D. 7
Answer» D. 7
Discussion
15.

Electrode paste ____________

A. increases contact impedance
B. equates contact impedance
C. reduces contact impedance
D. absorbs contact impedance
Answer» D. absorbs contact impedance
Discussion
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
Discussion
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
Discussion
18.

Surface electrodes damage the living tissues.

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