EEG BOARD PREP (PART 1)
EXAM WITH 100% CORRECT
ANSWERS 2025
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)
GRADED A+
,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
GRADED A+
,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
GRADED A+
, 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
GRADED A+
EXAM WITH 100% CORRECT
ANSWERS 2025
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)
GRADED A+
,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
GRADED A+
,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
GRADED A+
, 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
GRADED A+
