Explore topic-wise MCQs in GATE practice papers - Electronics & Communication.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your GATE practice papers - Electronics & Communication knowledge and support exam preparation. Choose a topic below to get started.

1.

Which among the below specified notations exhibit an odd signal? (Marks : 01)

A. x(-t) = -x(t) & x[-n] = -x[n]
B. x(-t) = x(t) & x[-n] = x[n]
C. x(-t) = -x(-t) & x[-n] = -x[-n]
D. x(t) = x(-t) & x[n] = x[-n]
Answer» B. x(-t) = x(t) & x[-n] = x[n]
Discussion
2.

Any signal that exhibits symmetry on Y-axis is called as _______ (Marks : 01)

A. odd signal
B. even signal
C. periodic signal
D. exponential signal
Answer» C. periodic signal
Discussion
3.

Which Fourier Dirichlet conditions for transform existence specify the necessity of possessing finite values of the signal at any instant over a finite interval of time (T) ? (Marks : 02)

A. Single Valued Property
B. Finite-discontinuities
C. Finite Peaks
D. Absolute Integration
Answer» B. Finite-discontinuities
Discussion
4.

Consider the following assertions:A: x(t) or x[n] is assumed to be an energy signalif and only if 0>E> and P=1B: x(t) or x[n] is assumed to be a power signal only if 0>P> and E=1C: x(t) or x[n] is assumed to be a power signal only if0 < P < and E= D:x(t) or x[n] is assumed to be an energy signalif and only if 0

A. A & B
B. C & D
C. A & C
D. B & D
Answer» C. A & C
Discussion
5.

What is the obligatory sequence that need to be performed or executed in time shifting ,scaling and time reversal operational processes under the category of continuous time signals? (Marks : 02)

A. Time Shifting, Time Scaling & Time Reversal
B. Time Scaling, Time Reversal & Time Shifting
C. Time Shifting, Time Reversal & Time Scaling
D. Time Reversal, Time Scaling & Time Shifting
Answer» B. Time Scaling, Time Reversal & Time Shifting
Discussion