Signals and Systems MCQs | Signals and Systems Short Questions and Answers

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Questions
41 An example of a discrete set of information/system is
A the trajectory of the Sun
B data on a CD
C universe time scale
D movement of water through a pipe

Answer: data on a CD
42 A system which is linear is said to obey the rules of
A scaling
B additivity
C both scaling and additivity
D homogeneity

Answer: both scaling and additivity
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43 A time invariant system is a system whose output
A increases with a delay in input
B decreases with a delay in input
C remains same with a delay in input
D vanishes with a delay in input

Answer: remains same with a delay in input
44 All real time systems concerned with the concept of causality are
A non causal
B causal
C neither causal nor non causal
D memoryless

Answer: causal
45 When we take up design of systems, ideally how do we define the stability of a system?
A A system is stable, if a bounded input gives a bounded output, for some values of the input
B A system is unstable, if a bounded input gives a bounded output, for all values of the input
C A system is stable, if a bounded input gives a bounded output, for all values of the input
D A system is unstable, if a bounded input gives a bounded output, for some values of the input

Answer: A system is stable, if a bounded input gives a bounded output, for all values of the input
46 All causal systems must have the component of
A memory
B time invariance
C stability
D linearity

Answer: memory
47 What is the area of a Unit Impulse function?
A Zero
B Half of Unity
C Depends on the function
D Unity

Answer: Unity

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