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ABRET - DIGITAL INSTRUMENTATION QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED LATEST UPDATE 2025
Practice questions for this set
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Which of the following principles best applies to the EEG amplifiers?
Select the correct definition
1Common mode rejection 2Aliasing
3Sampling 4Filtering
Don't know?
Terms in this set (93)
Which of the following most closely d) System Gain
relates to the ratio of an amplifiers output
to input signal?
a) Impedance
b) Display sensitivity
c) CMRR
d) System Gain
What happens when a 60 cycle sine wave b) aliasing
is sampled at 100 hertz?
a) digital filtering
b) aliasing
c) subharmonic response
d) overlap of data
Which of the following settings is most d) 2 uV/mm
sensitive?
a)5 uV/mm
b) 5 mV/cm
c) 2 mV/cm
d) 2 uV/mm
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, 3/25/25, 7:55 ABRET - Digital Instrumentation Questions Flashcards |
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With high frequency filtering, muscle c) beta activity.
artifact may become distorted and look
like
a) theta activity.
b) alpha activity.
c) beta activity.
d) lambda activity.
A device that alters the frequency a) filter
composition of a signal:
a) filter
b) transducer
c) capacitor
d) conductor
VERTICAL RESOLUTION c) Amplitude
a) Bits
b) Duration
c) Amplitude
d) Frequencies
Which of the following principles best a) Common mode rejection
applies to the EEG amplifiers?
a)Common mode rejection
b)Aliasing
c) Sampling
d) Filtering
FREQUENCY a) influenced by sampling rate and measured in hertz
a) influenced by sampling rate and
measured in hertz
b) influenced by sensitivity and
measured in cycles per second
c) influenced by CMRR and measured in
microvolts
d) influenced by impedance and measured
in millimeters
Term used to describe the way a signal is a) Sampling Rate
sampled at intervals and assigned a
numeric value:
a) Sampling Rate
b)Aliasing
c) Linear filtering
d) Sampling skew
Doubling the inter-electrode distances c) Increase amplitude
will have what effect on the waveforms?
a) Decrease muscle artifact
b) No effect
c) Increase amplitude
d) Increase slow activity
A 0.3 Hz wave would be attenuated by c) 0.3
what percentage with a 0.3 Hz filter?
a) Unaffected
b) 0.5
c) 0.3
d) 0.7
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