# Properties of LTI Systems – 3 MCQ’s

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Properties of LTI Systems – 3″.

1. What are the three special properties that only LTI systems follow?

a) Commutative property, Associative property, Causality

b) Associative property, Distributive property, Causality

c) Commutative property, Distributive property, Associative property

d) Distributive property, Stability, Causality

2. Which is the commutative property of the LTI System in case of discrete time system?

a) x[n]+h[n]=h[n]+x[n]

b) x[n]+h[n]=h[n]*x[n]

c) x[n]*h[n]=h[n]*x[n]

d) x[t]*h[t]=h[n]*x[n]

3. Which is special the property listed below only holds good by an LTI system?

a) Memory

b) Stability

c) Causality

d) Distributive property

4. Does the commutative property holds good for both continuous and discrete signal?

a) Yes

b) No

5. What is the Distributive property of the LTI system?

a) x[n] + h1[n] + h2[n] = h1[n] + h2[n] + x[n]

b) x[n]*(h1[n] + h2[n]) = x[n]*(h1[n])*(x[n]*h2[n])

c) x[n]*(h1[n] + h2[n]) = x[n]*h1[n] + x[n]*h2[n]

d) x[n]*(h1[n] + h2[n]) = *(x[n]*h1[n]) + x[n]*h2[n]

6. Which is the associative property of the LTI system?

a) x[n]*(h1[n]+h2[n])=x[n]*h1[n]+x[n]*h2[n]

b) x[n]*(h1[n]*h2[n])=h1[n]+x[n]+h2[n]

c) x[n]*h[n]=h[n]*x[n]

d) x[n]*(h1[n]*h2[n])=(x[n]*h1[n])*h2[n]

7. Which is the correct representation of Commutative Continuous time LTI system?

a) ∫h(α) + x(t-α) = ∫x(α) + h(t-α)

b) ∫h(α)x(t-α) = ∫x(α)h(t-α)

c) ∫h(α) – x(t-α) = ∫x(α)h(t-α)

d) ∫h(α) * x(t-α) = ∫x(α) * h(t-α)

8. What does the Distributive property signify?

a) The sum of signals in both the sides in any number must be equal

b) The responses must be equal in any side of an LTI system

c) The sum of two inputs must be equal to responses to these signals

d) The Multiplication of two signals in the inputs side is equal to multiplication of the responses

9. What does the associative property apply?

a) Parallel connection of two systems is equivalent to a single system only in case of a continuous system

b) Series and parallel interconnection of two systems is equivalent to a single system only in case of discrete system

c) Series interconnection of two systems is equivalent to a single system in case of both continuous and discrete system

d) Series interconnection of two systems is equivalent to a single system only in case of discrete

10. The order of the Cascade system doesn’t depend on the output. Which is the property?

a) Commutative

b) Associative

c) Commutative and distributive

d) Distributive

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