BME 350 EXAM 1 QUESTIONS WITH VERIFIED
ANSWERS
T or F: When sampling of a continuous is performed by a system, the larger the number
of samples the better the actual input signal is being represented. - Answers - True
T or F: A system cannot have continuous signal input and a discrete signal output. -
Answers - False
T or F: Not all signals can be decomposed to an even and odd parts - Answers - False
T or F: A change in the phase of a signal has the effect of compressing or stretching a
signal in time. - Answers - False
T or F: 𝜔0 = 2𝜋𝑓 = 2𝜋/ 𝑇0 - Answers - True
Euler's identity describes the conversion between exponential and Cartesian form of a
complex number. - Answers - True
Signal to Noise Ratio (SNR) can be calculated as the Maximum amplitude of x(t)/the
square of x(t). - Answers - False
A system is a set of physical components that is _______________ and converts an
input signal into an output signal - Answers - Mathematically representable
. ____________ and ____________ are examples of bioelectric signals from the body -
Answers - Heart activity (ECG) and Brain activity EEG
The signal from an implanted continuous glucose monitor is an example of a
__________ signal - Answers - Biochemical signal
Euler's formula is given by __________________________________ - Answers - e^jθ
= cos(θ) + jsin(θ)
For 𝒙(𝒕) = 𝑨 𝒄𝒐𝒔(𝝎₀𝒕 + 𝝓), the term ___________ controls the frequency of the signa -
Answers - 𝝎₀
If 𝑥(−𝑡) = −𝑥(𝑡) , x(t) is an _______function. - Answers - odd
A causal system is one where the output y(t0) depends only on
___________________________. - Answers - past or present inputs
ANSWERS
T or F: When sampling of a continuous is performed by a system, the larger the number
of samples the better the actual input signal is being represented. - Answers - True
T or F: A system cannot have continuous signal input and a discrete signal output. -
Answers - False
T or F: Not all signals can be decomposed to an even and odd parts - Answers - False
T or F: A change in the phase of a signal has the effect of compressing or stretching a
signal in time. - Answers - False
T or F: 𝜔0 = 2𝜋𝑓 = 2𝜋/ 𝑇0 - Answers - True
Euler's identity describes the conversion between exponential and Cartesian form of a
complex number. - Answers - True
Signal to Noise Ratio (SNR) can be calculated as the Maximum amplitude of x(t)/the
square of x(t). - Answers - False
A system is a set of physical components that is _______________ and converts an
input signal into an output signal - Answers - Mathematically representable
. ____________ and ____________ are examples of bioelectric signals from the body -
Answers - Heart activity (ECG) and Brain activity EEG
The signal from an implanted continuous glucose monitor is an example of a
__________ signal - Answers - Biochemical signal
Euler's formula is given by __________________________________ - Answers - e^jθ
= cos(θ) + jsin(θ)
For 𝒙(𝒕) = 𝑨 𝒄𝒐𝒔(𝝎₀𝒕 + 𝝓), the term ___________ controls the frequency of the signa -
Answers - 𝝎₀
If 𝑥(−𝑡) = −𝑥(𝑡) , x(t) is an _______function. - Answers - odd
A causal system is one where the output y(t0) depends only on
___________________________. - Answers - past or present inputs
