ABRET Digital Instrumentation Exam Questions with Complete Solutions 100% Verified|
Latest Update Graded A+
The amount by which the differential amplifier increases the magnitude of the input signal is its
a. resistance
b. filter
c. sensitivity
d. input impedance sensitivity
Which of the following instruments magnifies the common-mode voltage difference between
two inputs?
a. impedance meter
b. A/D converter
c. fast fourier transform
d. differential amplifier differential amplifier
The sharpness of the frequency response curve is determined by the filter
a. bandwith
b. rolloff
c. notch
d. capacitance rolloff
If the low frequency filter is changed from 1 Hz to 5 Hz, how will a 2 Hz slow wave be affected
, a. it will be significantly attenuated
b. it will not be affected
c. it will be minimally attenuated
d. it will be accentuated it will be significantly attenuated
Digital EEG montages are reformatted by using
a. the Nyquist theorem
b. fourier analysis
c. referentially recorded data
d. system reference system reference
The waveforms contain frequencies as high as 100 Hz. What is the Nyquist sampling rate?
a. >200 samples/second
b. 50 samples/second
c. 25 samples/second
d. >100 samples/second >200 samples/second
What is the specification of the minimum sampling rate used, in relation to the highest
frequency signal recorded?
a. Ohm's theory
b. Coulombs law
c. Paley-Winer theorem
Latest Update Graded A+
The amount by which the differential amplifier increases the magnitude of the input signal is its
a. resistance
b. filter
c. sensitivity
d. input impedance sensitivity
Which of the following instruments magnifies the common-mode voltage difference between
two inputs?
a. impedance meter
b. A/D converter
c. fast fourier transform
d. differential amplifier differential amplifier
The sharpness of the frequency response curve is determined by the filter
a. bandwith
b. rolloff
c. notch
d. capacitance rolloff
If the low frequency filter is changed from 1 Hz to 5 Hz, how will a 2 Hz slow wave be affected
, a. it will be significantly attenuated
b. it will not be affected
c. it will be minimally attenuated
d. it will be accentuated it will be significantly attenuated
Digital EEG montages are reformatted by using
a. the Nyquist theorem
b. fourier analysis
c. referentially recorded data
d. system reference system reference
The waveforms contain frequencies as high as 100 Hz. What is the Nyquist sampling rate?
a. >200 samples/second
b. 50 samples/second
c. 25 samples/second
d. >100 samples/second >200 samples/second
What is the specification of the minimum sampling rate used, in relation to the highest
frequency signal recorded?
a. Ohm's theory
b. Coulombs law
c. Paley-Winer theorem
