(SEM-III) THEORY EXAMINATION, 2018-19 SIGNALS AND SYSTEMS

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This PDF is the official B.Tech Semester-III Signals and Systems (REC-303) examination paper for the academic year 2018–19. The paper carries 70 marks and consists of multiple conceptual and analytical questions.

On Page 1, the document displays Section A, which includes short-answer questions asking students to:

distinguish between energy and power signals,

define power spectral density,

explain convolution in communication,

state advantages of Laplace transform,

list limitations of Fourier transform,

define a signal,

describe interpolation in sampling.
 

SIGNALS-AND-SYSTEMS-REC-303

Section B includes long-answer questions on:

classification of signals,

principle of linearity for discrete-time systems,

properties of Fourier transform (time scaling, conjugate functions),

initial & final value theorem of Laplace transform,

sampling theorem.

The exam tests a student’s understanding of core concepts of signals, system behavior, transforms, frequency domain analysis, and sampling fundamentals.

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