## Signals and Systems Questions and Answers – Concept of Convolution

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Concept of Convolution”. 1. The resulting signal when a continuous time periodic signal x(t) having period T, is convolved with itself is ___________ a) Non-Periodic b) Periodic having period 2T c) Periodic having period T d) Periodic having period T/2 2. … Read more

## Signals and Systems Questions and Answers – Ideal LPF, HPF, BPF and BSF Characteristics

This set of Tricky Signals & Systems Questions and Answers focuses on “Ideal LPF, HPF, BPF and BSF Characteristics”. 1. In the circuit given below, C = C1 = C2. The gain of the multiple-feedback band-pass filter is ___________ a) b) c) d) 2. Two network functions are given below. H = , H2 = … Read more

## Signals & Systems Questions and Answers – Inverse Z-Transform

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Inverse Z-Transform”. 1. Given the z-transform pair 3nn2 u[n] ↔ X (z). The time signal corresponding to X(2z) is ___________ a) n23n u[2n] b) c) d) 6nn2u[n] 2. Given the z-transform pair 3nn2 u[n] ↔ X (z). The time signal corresponding … Read more

## Signals & Systems Questions and Answers – Properties of Z-Transforms – 2

This set of Tough Signals & Systems Questions and Answers focuses on “Properties of Z-Transforms – 2”. 1.Find the Z-transform of the causal sequence x(n) = {1,0,-2,3,5,4}. (1 as the reference variable) a) 1 – 2z-2 + 3z-3 + 5z-4 + 4z-5 b) 1 – 2z2 + 3z3 + 5z4 + 4z5 c) z-1 – … Read more

## Signals & Systems Questions and Answers – Properties of Z-Transforms – 1

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Z-Transforms – 1”. 1. The z-transform of δ[n-k]>0 is __________ a) Zk, Z>0 b) Z-k, Z>0 c) Zk, Z≠0 d) Z-k, Z≠0 2. The z-transform of δ[n+k]>0 is __________ a) Z-k, Z≠0 b) Zk, Z≠0 c) Z-k, all Z … Read more

## Signals & Systems Questions and Answers – The Z-Transform

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “The Z-Transform”. 1. When do DTFT and ZT are equal? a) When σ = 0 b) When r = 1 c) When σ = 1 d) When r = 0 2. Find the Z-transform of δ(n+3). a) z b) z2 c) … Read more

## Signals & Systems Questions and Answers – Characterization and Nature of Systems

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Characterization and Nature of Systems”. 1. Given a Fourier transform pair x(t) ↔ X(jω) = , where, x(t) = 1 for |t|<1 and 0, otherwise. Then the Fourier transform of y(t) having the shape of a triangular waveform from t=-2 to … Read more

## Signals & Systems Questions and Answers – Inverse Laplace Transform

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Inverse Laplace Transform”. 1. Find the inverse Laplace transform for . a) tet u(t) b) te-t u(t) c) tu(t) d) et u(t) 2. Find the inverse Laplace transform for . a) te-t u(t) b) e-t sin⁡t u(t) c) e-t cos⁡t u(t) … Read more

## Signals & Systems Questions and Answers – Properties of ROC

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Properties of ROC”. 1. Given a system function H(s) = . Let us consider a signal sin 2t. Then the steady state response is ___________ a) b) Infinite c) 0 d) 8 2. If H(f) = , then for this to … Read more