This set of Signals & Systems Puzzles focuses on “Common Laplace Transforms – 2”. 1. The Laplace transform of the function e4t + 5 is ___________ a) b) c) d) 2. The Laplace transform of the function cos(2t) + 7sin(2t) is ____________ a) b) c) d) 3. Given F(s) = . The value of L-1{F(s)} … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Common Laplace Transforms – 1”. 1. The Laplace transform of f(t) = (e-2t – 1)2 is ________________ a) b) c) d) – 2. Given f (t) = t2e-2x cos (3t). The value of L {f(t)} is __________________ a) b) c) d) … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Properties of the Laplace Transform”. 1. Find the Laplace transform of x(t) = u(t+2) + u(t-2). a) b) c) d) 2. Find the Laplace transform of the signal x(t) = e-2t cos(200πt)u(t). a) b) c) d) 3. Find the Laplace transform … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “The Laplace Transform”. 1. The necessary condition for convergence of the Laplace transform is the absolute integrability of f(t)e-σt. a) True b) False 2. Find the Laplace transform of e-at u(t) and its ROC. a) , Re{s}>-a b) , Re{s}>a c) … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Sampling”. 1. Find the Nyquist rate and Nyquist interval of sin(2πt). a) 2 Hz, sec b) Hz, sec c) Hz, 2 sec d) 2 Hz, 2 sec 2. Find the Nyquist rate and Nyquist interval of sinc[t]. a) 1 Hz, 1 … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Discrete-Time Fourier Transform”. 1. Given a discrete time signal x[k] defined by x[k] = 1, for -2≤k≤2 and 0, for |k|>2. Then, y[k] = x[3k-2] is ______________ a) y[k] = 1, for k = 0, 1 and 0 otherwise b) y[k] … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Common Fourier Transforms”. 1. The Fourier series of an odd periodic function, contains __________ a) Only odd harmonics b) Only even harmonics c) Only cosine terms d) Only sine terms 2. The trigonometric Fourier series of a periodic time function can … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Discrete Fourier Transform”. 1. Given that S1 and S2 are two discrete time systems. Consider the following statements: i) If S1 and S2 are linear, then S is linear ii) If S1 and S2 are non-linear, then S is non-linear iii) … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Inverse Fourier Transform”. 1. Find the inverse Fourier transform of X(ω) = e-2ω u(ω). a) b) c) d) 2. Find the inverse Fourier transform of X(ω) = . a) 3e-3t u(t) + 8e-3t u(t) b) 3te-3t u(t) – 8e-8t u(t) c) … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Fourier Transforms”. 1. The Fourier transform of a function x(t) is X(ω). What will be the Fourier transform of ? a) b) j2πfX(f) c) d) jfX(f) 2. Find the Fourier transform of . a) sinc(ω) b) sa(ω) c) δ(ω) … Read more
