Biomedical Quiz
Preview:
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
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
Which of the following is not a soft tissue?
A. a) ligament
B. b) bone
C. c) tendons
D. d) skin
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
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
Aesthetics of appearance is called ____________
A. a) orthosis
B. b) cosmesis
C. c) lymphosis
D. d) homeostasis
Electrodynamic vibration transducers are based on _____________
A. a) Magnetostriction
B. b) Electromagnetic induction
C. c) Self inductance
D. d) None of the mentioned
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
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
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
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
EMG instrument contain frequency component extending up to ____________ Khz.
A. a) 1
B. b) 5
C. c) 10
D. d) 15
Which of the following can be measured using tachometers?
A. a) Angular speed
B. b) Linear speed
C. c) Acceleration
D. d) Vibration