EEG Board Exam 2025/2026 –
Actual Exam Questions with
Verified Correct Answers | Fully
Updated Study Guide
1. The basic unit of resistance is:
a. Ohm
b. Coulomb
c. Ampere
d. Volt
Correct answwer: a. ohm
2. 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 answwer: a. R=EI or (R=VI)
3. Which of the following is NOT a unit for measuring alternating
frequencies:
a. cycles per second
b. volts
c. hertz
d. kilocycles
Correct answwer: b. volts
,4. 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 answwer: d. stores energy
5. 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 answwer: c. filter
6. 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 answwer: a. amplifier
7. 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 answwer: d. noise
,8. The EEG amplifier is designed so that when input 1 is more
negative than input 2, the deflection will be:
Correct answwer: upward
9. 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. dependent on the sampling rate
d. controlled by the 60-cycle notch filter
Correct answwer: b. the characteristic of an amplifier that
rejects external interference
10. 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 answwer: d. 0.1 Hz
11. Time constant is defined as the time required for the
deflection to fall (decay):
a. to 47% of the peak deflection
b. to 57% of the peak deflection
c. to 77% of the peak deflection
d. to 37% of the peak deflection
Correct answwer: d. to 37% of the peak deflection
12. 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 answwer: a. spike 10mm wave 6mm
13. A high frequency setting of 35Hz would attenuate 50Hz
muscle activity by approximately what percentage:
a. 10%
b. 20%
c. 40%
d. 100%
Correct answwer: c. 40%
14. 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
b. minimum of 100 data points/second
c. maximum of 100 data points/second
d. minimum of 1,000 data points/second
Correct answwer: b. MINIMUM of 100 data points/second
15. The filters creating a very narrow band pass that should
RARELY be used clinically are:
a. LFF 5.0Hz & HFF 70Hz
b. LFF 5.0Hz & HFF 15Hz
c. LFF 0.1Hz & HFF 70Hz
d. LFF 0.1Hz & HFF 15Hz
Correct answwer: b. LFF 5.0Hz & HFF 15Hz
Actual Exam Questions with
Verified Correct Answers | Fully
Updated Study Guide
1. The basic unit of resistance is:
a. Ohm
b. Coulomb
c. Ampere
d. Volt
Correct answwer: a. ohm
2. 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 answwer: a. R=EI or (R=VI)
3. Which of the following is NOT a unit for measuring alternating
frequencies:
a. cycles per second
b. volts
c. hertz
d. kilocycles
Correct answwer: b. volts
,4. 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 answwer: d. stores energy
5. 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 answwer: c. filter
6. 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 answwer: a. amplifier
7. 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 answwer: d. noise
,8. The EEG amplifier is designed so that when input 1 is more
negative than input 2, the deflection will be:
Correct answwer: upward
9. 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. dependent on the sampling rate
d. controlled by the 60-cycle notch filter
Correct answwer: b. the characteristic of an amplifier that
rejects external interference
10. 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 answwer: d. 0.1 Hz
11. Time constant is defined as the time required for the
deflection to fall (decay):
a. to 47% of the peak deflection
b. to 57% of the peak deflection
c. to 77% of the peak deflection
d. to 37% of the peak deflection
Correct answwer: d. to 37% of the peak deflection
12. 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 answwer: a. spike 10mm wave 6mm
13. A high frequency setting of 35Hz would attenuate 50Hz
muscle activity by approximately what percentage:
a. 10%
b. 20%
c. 40%
d. 100%
Correct answwer: c. 40%
14. 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
b. minimum of 100 data points/second
c. maximum of 100 data points/second
d. minimum of 1,000 data points/second
Correct answwer: b. MINIMUM of 100 data points/second
15. The filters creating a very narrow band pass that should
RARELY be used clinically are:
a. LFF 5.0Hz & HFF 70Hz
b. LFF 5.0Hz & HFF 15Hz
c. LFF 0.1Hz & HFF 70Hz
d. LFF 0.1Hz & HFF 15Hz
Correct answwer: b. LFF 5.0Hz & HFF 15Hz
