ABRET Board Exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
The basic unit for measuring current flow is
A. atomic weight
B. Coulomb
C. Volt
D. Ampere - CORRECT ANSWER - D. Ampere
The basic unit of resistance
A. Ohm
B. Coulomb
C. Ampere
D. Volt - CORRECT ANSWER - 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 ANSWER - 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 ANSWER - 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 a direct current resistance
D. Stores energy - CORRECT ANSWER - 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 ANSWER - 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 ANSWER - 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 interferance
D. Noise - CORRECT ANSWER - D. Noise
The EEG amplifier is designed so that when input 1 is more negative than input 2 the deflection
will be...
A. downward
B. upward
, C. absent
D. sinusoidal - CORRECT ANSWER - B. Upward
Common mode rejection is...
A. The ability of an amplifier to cancel out ECG artifact
B. The characteristics of an amplifier that rejects external interference
C. is dependent on the sampling rate
D. Controlled by the 60- cycle notch filter - CORRECT ANSWER - B. The characteristics
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 ANSWER - D. 0.1 Hz
Time constant is defined as the time required...
A. for the deflection to fall (decay) to 47% of the peak deflection
B. for the deflection to fall (decay) 57% of the peak deflection
C. for the deflection to fall (decay) 67% of the peak deflection
D. for the deflection to fall (decay) to 67% of the peak deflection - CORRECT ANSWER -
D. for the deflection to fall (decay) to 67% 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
Exam Questions and CORRECT Answers
The basic unit for measuring current flow is
A. atomic weight
B. Coulomb
C. Volt
D. Ampere - CORRECT ANSWER - D. Ampere
The basic unit of resistance
A. Ohm
B. Coulomb
C. Ampere
D. Volt - CORRECT ANSWER - 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 ANSWER - 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 ANSWER - 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 a direct current resistance
D. Stores energy - CORRECT ANSWER - 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 ANSWER - 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 ANSWER - 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 interferance
D. Noise - CORRECT ANSWER - D. Noise
The EEG amplifier is designed so that when input 1 is more negative than input 2 the deflection
will be...
A. downward
B. upward
, C. absent
D. sinusoidal - CORRECT ANSWER - B. Upward
Common mode rejection is...
A. The ability of an amplifier to cancel out ECG artifact
B. The characteristics of an amplifier that rejects external interference
C. is dependent on the sampling rate
D. Controlled by the 60- cycle notch filter - CORRECT ANSWER - B. The characteristics
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 ANSWER - D. 0.1 Hz
Time constant is defined as the time required...
A. for the deflection to fall (decay) to 47% of the peak deflection
B. for the deflection to fall (decay) 57% of the peak deflection
C. for the deflection to fall (decay) 67% of the peak deflection
D. for the deflection to fall (decay) to 67% of the peak deflection - CORRECT ANSWER -
D. for the deflection to fall (decay) to 67% 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
