Discrete Time Signals and Systems MCQs
Practice free Discrete Time Signals and Systems multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 39 questions — no login required.
Question 2easy
Consider the following statements (A) If S1 and S2 are linear, then S is linear (B) If S1 and S2 are nonlinear, then S is nonlinear (C) If S1 and S2 are causal, then S is causal (D) If S1 and S2 are time invariant, then S is time invariant True statements are :
Question 3easy
Consider the following statements (A) If S and S2 are linear and time invariant, then interchanging their order does not change the system. (B) If S1 and S2 are linear and time varying, then interchanging their order does not change the system. True statements are :
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Question 6easy
f(t) is a pulse defined as f(t) = I for 0 < I = 0 otherwise. The even part of f(t) is
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Question 7easy
A real signal x[nl with Fourier transform X(e) has following property I. xinl = 0 for n > 0 2. x101 > 0 3. Im {X(ein) = sin 0 - sin 20) 4. -1 7 ix(ei)12 di/ = 3 2_ The signal x(n) is
Question 8easy
The difference equation for this system relating any input x[n] and the corresponding output yin] is
Question 9easy
Which one of the following is the region of convergence (ROC) for the sequence In] = b" u(n) + b-n u(-n-1); Ibl < 1?