EEG BOARD PREP (PART 1) EXAM WITH 100%
CORRECT ANSWERS 2025 -2026
The basic unit for measuring current flow is:
a. atomic weight
b. Coulomb
c. Volt
d. Ampere correct answers >> d. ampere
The basic unit of resistance is:
a. Ohm
b. Coulomb
c. Ampere
d. Volt correct answers >> a. 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)
Which of the following is NOT a unit for measuring alternating frequencies:
,a. cycles per second
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 A/C to D/C
c. creates a direct current resistance
d. stores energy correct answers >> d. stores energy
A circuit that allows some frequencies to pass through it, while others are blocked
is a:
a. resistor
b. transistor
c. filter
d. reactor correct answers >> c. filter
A combination of electronic components designed to increase the power, voltage
or current of a signal:
a. amplifier
b. line filter
c. master gain control
d. sensitivity correct answers >> a. amplifier
,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 correct answers >> d. noise
The EEG amplifier is designed so that when input 1 is more negative than input 2,
the deflection will be correct answers >> upward
Common mode rejection is:
a. the ability of an amplifier to cancel out ECG artifact
b. the characteristic of an amplifier that rejects external interference
c. is dependent on the sampling rate
d. controlle by the 60-cycle notch filter correct answers >> b. 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. 0.5 Hz
b. 5.0 Hz
c. 10.0 Hz
d. 0.1 Hz correct answers >> d. 0.1 Hz
Time constant is defined as the time required for the deflection to fall (decay):
a. to 47% of the peak deflection
, b. 57% of the peak deflection
c. 77% of the peak deflection
d. to 37% of the peak deflection correct answers >> d. to 37% of the peak
deflection
An EEG record has 3/sec spike & wave discharges. Both the spike and the slow
wave have voltages of 100uV. If this discharge is recorded with a LFF of 5Hz and a
sensitivity of 10uV/mm, what would be the deflection of the spike and the wave?
a. spike 10mm & wave 6mm
b. spike 6mm & wave 10mm
c. spike 10mm & wave 10mm
d. spike 6mm & wave 6mm correct answers >> a. spike 10mm wave 6mm
A high frequency setting of 35Hz would attenuate 50Hz muscle activity by
approximately what percentage:
a. 10%
b. 20%
c. 40%
d. 100% correct answers >> c. 40%
According to ACNS Guidelines, Recording on Clinical EEG on Digital Media requires
monitors to have between 25 & 35mm/second horizontal scaling and a:
a. maximum of 1,000 data points/second to accurately display EEG on the monitor
screen
b. minimum of 100 data points/second to accurately display EEG on the monitor
screen
CORRECT ANSWERS 2025 -2026
The basic unit for measuring current flow is:
a. atomic weight
b. Coulomb
c. Volt
d. Ampere correct answers >> d. ampere
The basic unit of resistance is:
a. Ohm
b. Coulomb
c. Ampere
d. Volt correct answers >> a. 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)
Which of the following is NOT a unit for measuring alternating frequencies:
,a. cycles per second
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 A/C to D/C
c. creates a direct current resistance
d. stores energy correct answers >> d. stores energy
A circuit that allows some frequencies to pass through it, while others are blocked
is a:
a. resistor
b. transistor
c. filter
d. reactor correct answers >> c. filter
A combination of electronic components designed to increase the power, voltage
or current of a signal:
a. amplifier
b. line filter
c. master gain control
d. sensitivity correct answers >> a. amplifier
,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 correct answers >> d. noise
The EEG amplifier is designed so that when input 1 is more negative than input 2,
the deflection will be correct answers >> upward
Common mode rejection is:
a. the ability of an amplifier to cancel out ECG artifact
b. the characteristic of an amplifier that rejects external interference
c. is dependent on the sampling rate
d. controlle by the 60-cycle notch filter correct answers >> b. 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. 0.5 Hz
b. 5.0 Hz
c. 10.0 Hz
d. 0.1 Hz correct answers >> d. 0.1 Hz
Time constant is defined as the time required for the deflection to fall (decay):
a. to 47% of the peak deflection
, b. 57% of the peak deflection
c. 77% of the peak deflection
d. to 37% of the peak deflection correct answers >> d. to 37% of the peak
deflection
An EEG record has 3/sec spike & wave discharges. Both the spike and the slow
wave have voltages of 100uV. If this discharge is recorded with a LFF of 5Hz and a
sensitivity of 10uV/mm, what would be the deflection of the spike and the wave?
a. spike 10mm & wave 6mm
b. spike 6mm & wave 10mm
c. spike 10mm & wave 10mm
d. spike 6mm & wave 6mm correct answers >> a. spike 10mm wave 6mm
A high frequency setting of 35Hz would attenuate 50Hz muscle activity by
approximately what percentage:
a. 10%
b. 20%
c. 40%
d. 100% correct answers >> c. 40%
According to ACNS Guidelines, Recording on Clinical EEG on Digital Media requires
monitors to have between 25 & 35mm/second horizontal scaling and a:
a. maximum of 1,000 data points/second to accurately display EEG on the monitor
screen
b. minimum of 100 data points/second to accurately display EEG on the monitor
screen
