ABRET (4) 2024/2025 Exam Questions
and Corresponding Answers with Surety
of 100% Pass Mark
The amount by which the differential amplifier increases the magnitude of
the input signal is...? - 🧠ANSWER ✔✔Sensitivity
What is a device that alters the frequency composition of a signal? -
🧠ANSWER ✔✔Filter
High data sampling rates in a digital EEG Machine creates... - 🧠ANSWER
✔✔smooth, connected lines
Which of the following is not useful in digital EEG recordings? - 🧠ANSWER
✔✔Bio-calibration
Slow sampling rate may cause fast frequencies to appear slower, the term
for this is...? - 🧠ANSWER ✔✔Aliasing
Digital EEG montages are reformatted by using... - 🧠ANSWER ✔✔an
average reference
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
1
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Clipping of the waveforms occurs when? - 🧠ANSWER ✔✔the signal is
outside the range of the digitizer
What is voltage resolution? - 🧠ANSWER ✔✔an analog-to-digital converter
What occurs when a signal common to both inputs when using a differential
amplifier has like frequencies, amplitudes, and phases are - 🧠ANSWER
✔✔cancellation
What kind of amplifier uses Common Mode Rejection? - 🧠ANSWER ✔✔A
differential amplifier
In a differential amplifier, if input 1 receives a voltage of +50 µV and input 2
a voltage -100 µV, the output voltage and deflection would be
approximately...? - 🧠ANSWER ✔✔150 µV downward
The sharpness of the frequency response curve is determined by the filters
- 🧠ANSWER ✔✔Roll-off
The amount by which the differential amplifier increases the magnitude of
the input signal is dependant on...? - 🧠ANSWER ✔✔Sensitivity
A device that alters the frequency composition of a signal is...? -
🧠ANSWER ✔✔Filter
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
2
PRIVACY STATEMENT. ALL RIGHTS RESERVED
and Corresponding Answers with Surety
of 100% Pass Mark
The amount by which the differential amplifier increases the magnitude of
the input signal is...? - 🧠ANSWER ✔✔Sensitivity
What is a device that alters the frequency composition of a signal? -
🧠ANSWER ✔✔Filter
High data sampling rates in a digital EEG Machine creates... - 🧠ANSWER
✔✔smooth, connected lines
Which of the following is not useful in digital EEG recordings? - 🧠ANSWER
✔✔Bio-calibration
Slow sampling rate may cause fast frequencies to appear slower, the term
for this is...? - 🧠ANSWER ✔✔Aliasing
Digital EEG montages are reformatted by using... - 🧠ANSWER ✔✔an
average reference
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
1
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Clipping of the waveforms occurs when? - 🧠ANSWER ✔✔the signal is
outside the range of the digitizer
What is voltage resolution? - 🧠ANSWER ✔✔an analog-to-digital converter
What occurs when a signal common to both inputs when using a differential
amplifier has like frequencies, amplitudes, and phases are - 🧠ANSWER
✔✔cancellation
What kind of amplifier uses Common Mode Rejection? - 🧠ANSWER ✔✔A
differential amplifier
In a differential amplifier, if input 1 receives a voltage of +50 µV and input 2
a voltage -100 µV, the output voltage and deflection would be
approximately...? - 🧠ANSWER ✔✔150 µV downward
The sharpness of the frequency response curve is determined by the filters
- 🧠ANSWER ✔✔Roll-off
The amount by which the differential amplifier increases the magnitude of
the input signal is dependant on...? - 🧠ANSWER ✔✔Sensitivity
A device that alters the frequency composition of a signal is...? -
🧠ANSWER ✔✔Filter
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
2
PRIVACY STATEMENT. ALL RIGHTS RESERVED
