ABRET Digital Instrumentation 2024/2025 Exam Questions with 100% Correct Answers | Latest Update

ABRET Digital Instrumentation
2024/2025 Exam Questions with 100%
Correct Answers | Latest Update



A LFF setting of 5 Hz will attenuate a 5 Hz wave by approximately:




a. 0.3

b. 30 mm

c. 0.05


d. 5 mm - 🧠ANSWER ✔✔0.3 (LFF of 5 Hz will attenuate a 5 Hz wave by

30%)

Gradual changes in amplitude , frequency, or spatial distribution of rhythms

is known as:




a. asymmetry

b. attenuation



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,c. background activity


d. evolution - 🧠ANSWER ✔✔evolution


Vertical resolution




a. bits

b. frequencies

c. amplitude


d. duration - 🧠ANSWER ✔✔amplitude


The ability of an amplifier to reject like signals




a. amplifier gain

b. phase reversal

c. common mode rejection


d. sensitivity - 🧠ANSWER ✔✔common mode rejection


Which of the following principles best applies to the EEG amplifiers?




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, a. aliasing

b. sampling

c. common mode rejection


d. filtering - 🧠ANSWER ✔✔common mode rejection


Increasing the number of seconds displayed on the monitor




a. decreases spike duration

b. increases spike amplitude

c. does not change spike amplitude or duration


d. increases spike duration - 🧠ANSWER ✔✔does not change spike

amplitude or duration

Which of the following is the most appropriate sampling rate that should be

used for a HFF setting of 70 Hz, according to Nyquist theory?




a. 20 p/sec

b. 210 p/sec



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