Medical Quiz

Biomedical Quiz


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Electrodynamic vibration transducers are based on _____________

A. a) Magnetostriction

B. b) Electromagnetic induction

C. c) Self inductance

D. d) None of the mentioned


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

A. a) ECG

B. b) EMG

C. c) PCG

D. d) EEG


Aesthetics of appearance is called ____________

A. a) orthosis

B. b) cosmesis

C. c) lymphosis

D. d) homeostasis


For how much time period, the weighting factors are updated to allow for quick adaptation to signal quality changes?

A. a) Every 192 ms

B. b) Every 16 ms

C. c) Every 215 ms

D. d) Every 200 ms


nterruption or interference with normal physiological and developmental processes or structures is called _________

A. a) Functional Limitation

B. b) Pathophysiology

C. c) Societal Limitation

D. d) Modality-Specific


Electromechanical system can be used for measuring vibration.

A. a) True

B. b) False


Which of the following can be measured using tachometers?

A. a) Angular speed

B. b) Linear speed

C. c) Acceleration

D. d) Vibration


Which of the following is used for measuring emf between plates of transducers?

A. a) Low impedance voltmeter

B. b) High impedance voltmeter

C. c) Any voltmeter

D. d) None of the mentioned


What should be CMRR of preamplifier upto 5 Khz?

A. a) 10 dB

B. b) 30 dB

C. c) 90 dB

D. d) greater than 90 dB


In order to detect the QRS, the detection threshold is kept as ________ to prevent the detection of T waves or baseline noise as QRS complexes during a complete heart block or asystole.

A. a) 0.15 V

B. b) 0.015 mV

C. c) 0.015 mV

D. d) 0.00015 V


EMG is recorded by using surface electrodes.

A. a) True

B. b) False


The heart rate is computed by averaging the most recent _________________

A. a) 12 P waves

B. b) 12 R-R intervals

C. c) 12 QRS complex

D. d) 12 R waves


A model of the normal QRS complex, called ___________

A. a) ECG model

B. b) QRS model

C. c) Template

D. d) Detection model


What is the typical range of EMG signals?

A. a) 0.025 to 0.050 mV

B. b) 0.050 to 0.1 mV

C. c) 0.1 to 0.5 mV

D. d) 0.5 to 1 mV


EMG instrument contain frequency component extending up to ____________ Khz.

A. a) 1

B. b) 5

C. c) 10

D. d) 15


n artificial limb, a sensory substitution system, or an augmentative communication aid is prosthetic devices __________

A. a) therapeutic device

B. b) diagnostics device

C. c) orthosis device

D. d) prosthetic device


Who gave the ST/AR algorithm in 1999?

A. a) Hewlett Packard

B. b) Jen and Hwang

C. c) Clynes

D. d) Cox and Nolle


Which of the following quantities are sensitive to electromechanical flow meters?

A. a) Viscosity

B. b) Density

C. c) Temperature

D. d) None of the mentioned


he area of the P wave is ______ wide and ends ______ before the R wave peak.

A. a) 120 ms, 200 ms

B. b) 200 ms, 120 ms

C. c) 100 ms, 215 ms

D. d) 215 ms, 100 ms


Which wave detection is used to differentiate between a Sinus Rhythm and a Supraventricular Rhythm?

A. a) P wave

B. b) QRS complex

C. c) T wave

D. d) R wave


What is the value of the refractory period from the previously identified QRS complex?

A. a) 200 ms

B. b) 198 ms

C. c) 192 ms

D. d) 215 ms


Which of the following is not a soft tissue?

A. a) ligament

B. b) bone

C. c) tendons

D. d) skin


If the height of the P wave is X, then the height of the R wave is _____

A. a) X/32

B. b) 32/X

C. c) X/16

D. d) 32X


Whose measurements are important for myoelectric control of prosthetic devices?

A. a) VCG

B. b) ECG

C. c) EEG

D. d) EMG


What is used to display EMG waveforms?

A. a) Cathode Ray Oscilloscope

B. b) Analog storage Oscilloscope

C. c) Digital Oscilloscope

D. d) Dual-beam Oscilloscope




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