Top 80+ Solved Signals and Systems MCQ Questions Answer
Q. Find the magnitude of exp(jwt). Find the boundness of sin(t) and cos(t).
a. 1, [-1,2], [-1,2]
b. 0.5, [-1,1], [-1,1]
c. 1, [-1,1], [-1,2]
d. 1, [-1,1], [-1,1]
Q. Defining u(t), r(t) and s(t) in their standard ways, are their derivatives defined at t = 0?
a. yes, yes, no
b. no, yes, no
c. no, no, yes
d. no, no, no
Q. Which is the correct Euler expression?
a. exp(2jt) = cos(2t) + jsin(t)
b. exp(2jt) = cos(2t) + jsin(2t)
c. exp(2jt) = cos(2t) + sin(t)
d. exp(2jt) = jcos(2t) + jsin(t)
Q. Unit Impulse function is obtained by using the limiting process on which among the following functions?
a. triangular function
b. rectangular function
c. signum function
d. sinc function
Q. What is exp(ja) equal to, where j is the square root of unity?
a. cos ja + jsin a
b. sin a + jcos a
c. cos j + a sin j
d. cos a + jsin a
Q. Sinusoidal signals multiplied by decaying exponentials are referred to as
a. amplified sinusoids
b. neutralized sinusoids
c. buffered sinusoids
d. damped sinusoids