Instrumentation Engineering
GATE IN Signals and Systems PYQs
Build your understanding with focused practice from past exam papers.
Questions 31–40 of 62. Imported answers require independent review unless marked reviewed.
Question 4
Open questionINMCQ1 markNeeds review
The input-output relationship of an LTI system is given below.

For an input
shown below 
, the peak value of the output when
passes through
is _____.Your answerChoose one option.
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Let
denote the unit step function. The bilateral Laplace transform of the function
is _____.Your answerChoose one option.
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The signal
isYour answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 43
Open questionINNAT2 marksNeeds review
Given
, where * denotes convolution operation. The value of
as
is ____________ (rounded off to two decimal places).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 44
Open questionINNAT2 marksNeeds review
The input signal shown below is passed through the filter with the following taps.

The number of non-zero output samples is _____.
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A differentiator has a transfer function whose phase increases linearly with frequency
Your answerChoose one option.
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Consider the Signal
, where
. The period of this signal
is ____.Your answerChoose one option.
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Consider the signal
. Let
be the Fourier transform of
. The value of
is ____.Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 35
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Let
and
. Consider
, where
denotes the convolution operator. The value of
is ____Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 48
Open questionINNAT2 marksNeeds review
Consider the finite sequence
. The Inverse Discrete Fourier Transform (IDFT) of
is given as
. The value of
is ____Log in to check the answer
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