EEG STUDY GUIDE FOR
REGISTRY (ASET REVIEW
QUESTIONS) EXAM WITH
100% CORRECT ANSWERS
2025
The basic unit for measuring current flow is? correct
answers >> Ampere
The basic unit of resistance? correct answers >>
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 correct answers >> A. R=EI or
R=VI
GRADED A+
,Which of the following is not a unit for measuring
alternating frequencies?
A. Cycles per sec
B. Volts
C. Hertz
D. Kilocycles correct answers >> 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 correct answers >> D. stores
energy
What is a filter? correct answers >> A circuit that
allows some frequencies to pass through it, while others
are blocked
What is an amplifier? correct answers >> 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:
GRADED A+
,a. output voltage
b. linear distortion
c. 60Hz interference
d. noise correct answers >> D. noise
The EEG amplifier is designed so that when input 1 is
more negative then input 2, the deflection will be?
correct answers >> Upward
What is common mode rejection? correct answers >>
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 correct answers >> D. 0.1hz
Time constant is defined as the time required - correct
answers >> for the deflection to fall (decay) to 37% of
the peak deflection.
GRADED A+
, A high frequency setting of 35hz would attenuate 50hz
muscle activity by approximately what percentage?
correct answers >> 40%
According to ACNS Guidelines, recording clinical EEG on
digital media requires monitors to have? correct
answers >> 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
b. LF 5.0 and HF 15hz
c. LF 0.1 and HF 70hz
d. LF 0.1 and HF 15hz correct answers >> 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 correct answers >> A.
no effect on the activity being recorded
GRADED A+
REGISTRY (ASET REVIEW
QUESTIONS) EXAM WITH
100% CORRECT ANSWERS
2025
The basic unit for measuring current flow is? correct
answers >> Ampere
The basic unit of resistance? correct answers >>
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 correct answers >> A. R=EI or
R=VI
GRADED A+
,Which of the following is not a unit for measuring
alternating frequencies?
A. Cycles per sec
B. Volts
C. Hertz
D. Kilocycles correct answers >> 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 correct answers >> D. stores
energy
What is a filter? correct answers >> A circuit that
allows some frequencies to pass through it, while others
are blocked
What is an amplifier? correct answers >> 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:
GRADED A+
,a. output voltage
b. linear distortion
c. 60Hz interference
d. noise correct answers >> D. noise
The EEG amplifier is designed so that when input 1 is
more negative then input 2, the deflection will be?
correct answers >> Upward
What is common mode rejection? correct answers >>
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 correct answers >> D. 0.1hz
Time constant is defined as the time required - correct
answers >> for the deflection to fall (decay) to 37% of
the peak deflection.
GRADED A+
, A high frequency setting of 35hz would attenuate 50hz
muscle activity by approximately what percentage?
correct answers >> 40%
According to ACNS Guidelines, recording clinical EEG on
digital media requires monitors to have? correct
answers >> 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
b. LF 5.0 and HF 15hz
c. LF 0.1 and HF 70hz
d. LF 0.1 and HF 15hz correct answers >> 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 correct answers >> A.
no effect on the activity being recorded
GRADED A+
