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Convolution MCQs

Practice Convolution MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 2
Signals & SystemsConvolution

Continuous-time convolution is?

  • AIntegral x(tau)h(t-tau)d tau over all tau
  • BIntegral x(t)h(t)dt only
  • Cx(t)+h(t)
  • Dx(t)/h(t)
Report an error
Correct Answer: A. Integral x(tau)h(t-tau)d tau over all tau
Explanation: Continuous-time convolution integrates x(tau)h(t-tau) over all tau.
Reference: Standard signals and systems: convolution
Question 3
Signals & SystemsConvolution

Which is a property of convolution?

  • Ax*h=h*x
  • Bx*h=x-h
  • CIt is never associative
  • DIt requires x=h
Report an error
Correct Answer: A. x*h=h*x
Explanation: Convolution is commutative.
Reference: Standard signals and systems: convolution
Question 4
Signals & SystemsConvolution

Convolution with the unit impulse gives?

  • A0
  • Bx(t)
  • C1
  • Ddx(t)/dt
Report an error
Correct Answer: B. x(t)
Explanation: The unit impulse is the identity for convolution.
Reference: Standard signals and systems: convolution
Question 5
Signals & SystemsConvolution

x(t)*delta(t-t0) equals?

  • Ax(t+t0)
  • Bx(t-t0)
  • Cdelta(t)
  • Dx(t0) only
Report an error
Correct Answer: B. x(t-t0)
Explanation: A shifted impulse shifts the convolved signal by the same amount.
Reference: Standard signals and systems: convolution