LTI Systems Quiz 1

Choose the statements that are always true for the situation described in the question. Don't make extra assumptions.

Question 1: The output of a linear static system to a zero input is zero.

Yes

Correct!
No

Incorrect.

Question 2: The output of a linear time-invariant system to a zero input is a zero signal.

Yes

Incorrect.
No

Correct! The output is a sum of a response due to the input and a response due to initial conditions. The latter may be nonzero.

Question 3: Let $\mathcal{B}$ be a static linear autonomous system and let $y\in\mathcal{B}$.

$y$ is zero

Correct!
$y$ is a linear function.

Incorrect.
$y$ is an exponential function.

Incorrect.

Question 4: Let $\mathcal{B}$ be a first order linear autonomous system and let $y\in\mathcal{B}$.

$y$ is zero

Incorrect.
$y$ is a linear function.

Incorrect.
$y$ is an exponential function.

Correct!

Question 5: How did you do and what do you think about this quiz?

I did not understand the questions. ✓ ✗

This option is correct. Please read the course notes (http://homepages.vub.ac.be/~imarkovs/st/text.pdf) and try the test again. If you still do not understand the questions, talk with me.

I did some mistakes and was confused by the questions. ✓ ✗

This option is correct. Please think what was confusing for you. Try to formulate specific questions. Discuss them with your colleagues. If they are also confused and can not help you, put your questions for discussion in class.

I've answered the questions correctly and found the quiz OK. ✓ ✗

This option is correct. Congratulations! Try now a more challenging quiz: http://homepages.vub.ac.be/~imarkovs/st/quiz-lti2.html The questions go beyond what was discussed in class however you do not need to know anything extra to answer them.

I've answered the questions correctly and found the quiz insultingly easy. ✓ ✗

This option is correct. Very good, I agree with you! Try now a this quiz: http://homepages.vub.ac.be/~imarkovs/st/quiz-lti2.html The questions go beyond what was discussed in class however you do not need to know anything extra to answer them.