Category: Signals & Systems

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Applications of Signals on Circuits”. 1. A 440 V, 50 HZ AC source supplies a series LCR circuit with a capacitor and a coil. If the coil has 100 mΩ resistance and 15 mH inductance, then at a resonance frequency of […]

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “BIBO Stability & Systems in the Time Domain”. 1. When is a system said to be BIBO stable?a) When the boundary conditions of the system are stableb) When there is stability in the overall systemc) Every Bounded input results in a […]

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “BIBO Stability”. 1. State whether the integrator system is stable or not.a) Unstableb) Stablec) Partially Stabled) All of the mentioned 2. For what values of k is the following system stable, y = (k2 – 3k -4)log(x) + sin(x)?a) k=1,4b) k=2,3c) k=5,4d) […]

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “The Impulse Function – 2″. 1. What is the area of a Unit Impulse function?a) Zerob) Half of Unityc) Depends on the functiond) Unity 2. Why is the impulse duration important?a) It is zerob) It changes with timec) It approaches zerod) […]

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “The Impulse Function – 1″. 1. What is the definition of the delta function in time space intuitively?a) Defines that there is a point 1 at t=0, and zero everywhere elseb) Defines that there is a point 0 at t=0, and […]

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Periodic and Non-Periodic Signals”. 1. The fundamental period of the signal X (t) = 10 cos2(10 πt) is __________a) 0.2b) 0.1c) 0.5d) No fundamental period exists 2. The even component of the signal X (t) = ejt is _________________a) Sin tb) Cos […]

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Discrete-Time Systems in the Time-Domain – 2″. 1. The response of any discrete time system can be decomposed as _____________a) Total Response=Impulse+stepb) Total Response=Impulse+Rampc) Total Response=zero-output responsed) Total Response=zero-state response+zero-input response 2. Zero-state response of the system is _____________a) Response of […]

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Discrete-Time Systems in the Time-Domain – 1″. 1. If n tends to infinity, is the accumulator function an unstable one?a) The function is marginally stableb) The function is unstablec) The function is stabled) None of the mentioned 2. Comment on the […]

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “The Complex Exponential”. 1. What is the magnitude of exp(2+3j)?a) exp(2.3)b) exp(3)c) exp(2)d) exp(3/2) 2. What is the fundamental frequency of exp(2pi*w*j)?a) 1pi*wb) 2pi*wc) wd) 2w 3. What is exp(ja) equal to, where j is the square root of unity?a) cos […]

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Useful Signals”. 1. What is the value of u[1], where u[n] is the unit step function?a) 1b) 0.5c) 0d) -1 2. Evaluate the following function in terms of t: {sum from -1 to infinity:d[n]}/{Integral from 0 to t: u(t)}a) tb) 1⁄tc) t2d) 1⁄t2 […]