This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Discrete-Time Systems in the Time-Domain”. 1. Is the function y[n] = cos(x[n]) periodic or not? a) True b) False 2. If n tends to infinity, is the accumulator function an unstable one? a) The function is marginally stable b) The function … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “The Complex Exponential”. 1. What is exp(ja) equal to, where j is the square root of unity? a) cos ja + jsin a b) sin a + jcos a c) cos j + a sin j d) cos a + jsin … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Useful Signals”. 1. What is the value of d[0], such that d[n] is the unit impulse function? a) 0 b) 0.5 c) 1.5 d) 1 2. What is the value of u[1], where u[n] is the unit step function? a) 1 … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Discrete Time Signals”. 1. Is the function y[n] = sin(x[n]) periodic or not? a) True b) False 2. What is the time period of the function x[n] = exp(jwn)? a) pi/2w b) pi/w c) 2pi/w d) 4pi/w 3. What is the … Read more
This set of Signals & Systems Questions & Answers for Exams focuses on “Properties of Systems – 5”. 1. For the system y (t) = x2(t), which of the following holds true? a) Invertible b) Non-Invertible c) Invertible as well as Non-Invertible in its respective domains d) Cannot be determined 2. For the system , … Read more
This set of Signals & Systems test focuses on “Properties of Systems – 4”. 1. What is a stable system? a) If every bounded input results in the bounded output b) If every bounded input results in an unbounded output c) If every unbounded input results in a bounded output d) If unbounded input results … Read more
This set of Signals & Systems Interview Questions and Answers for Experienced people focuses on “Properties of Systems – 3”. 1. 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 2. Which among the following is a memory less system? a) Delay … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Systems – II”. 1. What is the following type of system called? y[n] = x[n] + y[n-1]. a) Subtractor system b) Adder system c) Product System d) Divisor System 2. Which of the following systems is linear? a) y(t) … Read more
This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Systems – I”. 1. Is the system y(t) = Rx(t), where R is a arbitrary constant, a memoryless system? a) Yes b) No 2. Does the following discrete system have the parameter of memory, y[n] = x[n-1] + x[n] … Read more
This set of Signals & Systems Questions and Answers for Experienced people focuses on “Elementary Signals – 2”. 1. Mathematical representation of given rectangular pulse is ______ a) X (t) = {2A, t/2 < 0 < -t/2 b) X (t) = {2A, -t/2 < 0 < t/2 c) X (t) = {2A, 0 <= |t| … Read more
