EEG Study Guide for registry (ASET
Review Questions) with Correct
Answers
The basic unit for measuring current flow is? - ✔✔Ampere
The basic unit of resistance? - ✔✔Ohm
Which of the following is not a valid expression of Ohm's law?
A. R=EI or R=VI
B. E=IR or V=IR
C. I=E/R or I=V/R
D. R=E/I or R=V/I - ✔✔A. R=EI or R=VI
Which of the following is not a unit for measuring alternating frequencies?
A. Cycles per sec
B. Volts
C. Hertz
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,D. Kilocycles - ✔✔B. Volts
Which of the following describes the action of a capacitor?
A. opposes changes in current flow
B. converts alternating current to direct current
C. creates direct current resistance
D. stores energy - ✔✔D. stores energy
What is a filter? - ✔✔A circuit that allows some frequencies to pass through it, while
others are blocked
What is an amplifier? - ✔✔A combination of electronic components designed to
increase the power, voltage or current of a signal.
A small fluctuating output recorded by the EEG instrument even when there is no input
signal is called:
a. output voltage
b. linear distortion
c. 60Hz interference
d. noise - ✔✔D. noise
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,The EEG amplifier is designed so that when input 1 is more negative then input 2, the
deflection will be? - ✔✔Upward
What is common mode rejection? - ✔✔the characteristic of an amplifier that rejects
external interference
Which of the following is most attenuated by a low frequency filter of 1 Hz?
A. .5hz
B. 5hz
C. 10 hz
D. .1hz - ✔✔D. 0.1hz
Time constant is defined as the time required - - ✔✔for the deflection to fall (decay) to
37% of the peak deflection.
A high frequency setting of 35hz would attenuate 50hz muscle activity by
approximately what percentage? - ✔✔40%
According to ACNS Guidelines, recording clinical EEG on digital media requires
monitors to have? - ✔✔Between 25 and 35 mm/second horizontal scaling and a
minimum of 100 data points/second to accurately display EEG on the monitor screen.
The filter creating a very narrow band pass that should rarely be used clinically-
a. LF 5.0 and HF 70hz
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, b. LF 5.0 and HF 15hz
c. LF 0.1 and HF 70hz
d. LF 0.1 and HF 15hz - ✔✔B. LF 5.0 and HF 15hz
During the recording of cerebral activity, the calibration input voltage is changed from
50uv to 100uv. What will be the result?
A. no effect on the activity being recorded
B. a two fold increase in amplitude
C. a one half reduction of amplitude
D. clipping of the waveform - ✔✔A. no effect on the activity being recorded
According the ACNS guidelines 2006, the minimum sampling rate for EEG Data,
should be at least____________times the highest high frequency filter setting. - ✔✔Three
In a record with 10hz alpha activity. When the display epoch is changed from 10
seconds per display screen to 20 seconds per display screen, the frequency of the
activity will be________ - ✔✔10hz
Guidelines for recording digital EEG are written by: - ✔✔The american clinical
neurophysiology society (ACNS)
The term RAM means: - ✔✔TEMPORARY MEMORY STORAGE THAT IS CRITICAL
TO RAPID COMPUTER OPERATIONS
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Review Questions) with Correct
Answers
The basic unit for measuring current flow is? - ✔✔Ampere
The basic unit of resistance? - ✔✔Ohm
Which of the following is not a valid expression of Ohm's law?
A. R=EI or R=VI
B. E=IR or V=IR
C. I=E/R or I=V/R
D. R=E/I or R=V/I - ✔✔A. R=EI or R=VI
Which of the following is not a unit for measuring alternating frequencies?
A. Cycles per sec
B. Volts
C. Hertz
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,D. Kilocycles - ✔✔B. Volts
Which of the following describes the action of a capacitor?
A. opposes changes in current flow
B. converts alternating current to direct current
C. creates direct current resistance
D. stores energy - ✔✔D. stores energy
What is a filter? - ✔✔A circuit that allows some frequencies to pass through it, while
others are blocked
What is an amplifier? - ✔✔A combination of electronic components designed to
increase the power, voltage or current of a signal.
A small fluctuating output recorded by the EEG instrument even when there is no input
signal is called:
a. output voltage
b. linear distortion
c. 60Hz interference
d. noise - ✔✔D. noise
Katelyn Whitman, All Rights Reserved © 2025 2
,The EEG amplifier is designed so that when input 1 is more negative then input 2, the
deflection will be? - ✔✔Upward
What is common mode rejection? - ✔✔the characteristic of an amplifier that rejects
external interference
Which of the following is most attenuated by a low frequency filter of 1 Hz?
A. .5hz
B. 5hz
C. 10 hz
D. .1hz - ✔✔D. 0.1hz
Time constant is defined as the time required - - ✔✔for the deflection to fall (decay) to
37% of the peak deflection.
A high frequency setting of 35hz would attenuate 50hz muscle activity by
approximately what percentage? - ✔✔40%
According to ACNS Guidelines, recording clinical EEG on digital media requires
monitors to have? - ✔✔Between 25 and 35 mm/second horizontal scaling and a
minimum of 100 data points/second to accurately display EEG on the monitor screen.
The filter creating a very narrow band pass that should rarely be used clinically-
a. LF 5.0 and HF 70hz
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, b. LF 5.0 and HF 15hz
c. LF 0.1 and HF 70hz
d. LF 0.1 and HF 15hz - ✔✔B. LF 5.0 and HF 15hz
During the recording of cerebral activity, the calibration input voltage is changed from
50uv to 100uv. What will be the result?
A. no effect on the activity being recorded
B. a two fold increase in amplitude
C. a one half reduction of amplitude
D. clipping of the waveform - ✔✔A. no effect on the activity being recorded
According the ACNS guidelines 2006, the minimum sampling rate for EEG Data,
should be at least____________times the highest high frequency filter setting. - ✔✔Three
In a record with 10hz alpha activity. When the display epoch is changed from 10
seconds per display screen to 20 seconds per display screen, the frequency of the
activity will be________ - ✔✔10hz
Guidelines for recording digital EEG are written by: - ✔✔The american clinical
neurophysiology society (ACNS)
The term RAM means: - ✔✔TEMPORARY MEMORY STORAGE THAT IS CRITICAL
TO RAPID COMPUTER OPERATIONS
Katelyn Whitman, All Rights Reserved © 2025 4
