Properties of Systems - Signals & Systems MCQs

"Properties of Systems - Signals & Systems MCQs" offers a comprehensive set of multiple-choice questions to help you understand the fundamental properties of systems in signal processing. This MCQ collection covers essential topics such as linearity, time-invariance, causality, stability, and system memory. Ideal for students and professionals in electrical engineering, control systems, and digital signal processing, these practice questions are designed to reinforce key concepts and improve exam readiness. Enhance your knowledge of signals and systems with this essential resource, perfect for mastering system properties and their applications.

1.If the input-output relationship is given by y(t) = 2x(t) d⁄dx x(t). What kind of system it represents?
a) Linear system
b) Non linear system
c) LTI system
d) Linear but time-invariant system

Answer: b


2.A system is said to be linear if _______
a) It satisfies only the principle of superposition theorem
b) It satisfies only amplitude scaling
c) It satisfies both amplitude scaling and principle of superposition theorem
d) It satisfies amplitude scaling but not the principle of superposition theorem

Answer: c

                               

3.y[n]=rn x[n] is ________ system.
a) LTI
b) Time varying
c) Linear and time invariant
d) Causal and time invariant

Answer: b


4.Determine the nature of the system: y[n] = x[n]x[n – 1] with unit impulse function as an input.
a) Dynamic, output always zero, non-invertible
b) Static, output always zero, non-invertible
c) Dynamic, output always 1, invertible
d) Dynamic, output always 1, invertible

Answer: a


5.Is the system time invariant: y(t) = x(4t)?
a) YES
b) NO

Answer: b


6.An inverse system with the original system gives an output equal to the input. How is the inverse system connected to the original system?
a) Series
b) Cascaded
c) parallel
d) No connection



Answer: c

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7.Is the system y[n]=2x[n]+2 linear?
a) YES
b) NO

Answer: b



8.Determine the nature of the given system: y(t)=x(sint)
a) Causal, Non-linear
b) Causal, Linear
c) Non-Causal, Non-linear
d) Non-causal, Linear

Answer: d


9.Which among the following is an application of non-causal system?
a) Image processing
b) RC circuit
c) Stock market Analysis
d) Automobile

Answer: c


10.Determine the nature of the system: y(n)=x(-n).
a) Causal
b) Non-causal
c) Causal for all positive values of n
d) Non-causal for negative values of n

Answer: b


11.A system with memory which anticipates future values of input is called _________
a) Non-causal System
b) Non-anticipative System
c) Causal System
d) Static System

Answer: a


12. In a continuous-time physical system, memory is directly associated with _____________
a) Storage registers
b) Time
c) Storage of energy
d) Number of components in the system

Answer: c


13.Which among the following is a memory less system?
a) Delay
b) Summer
c) Resistor
d) Capacitor

Answer: c


15. Which one of the following is an example of a system with memory?
a) Identity System
b) Resistor
c) y(n)=x(n)-2x(n)
d) Accumulator

Answer: d

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