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# ESE 2020 Technical Quiz ||Representation of Continuous and Discrete-Time Signals-1

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Question 1

For the relation of system S

y[n] = x[n]{g[n] + g[n –1]}

Which of the following statement is correct?

Question 2

A discrete time signal is given as . The energy of x[n] is

Question 3

Each of the next four (4) items consists of two statements, one labelled as ‘Statement (I)’ and the other as ‘Statement (II)’. You are to examine these two statements carefully and select the answers to these items using the code given below:

Statement 1: The power of an energy signal should be zero.

Statement 2: An energy signal should be finite in magnitude and time.

Codes:

A) Both Statements (I) and Statement (II) are individually true and Statement (II) is correct explanation of statement (I).

B) Both Statements (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of statement (I).

C) Statement (I) is true but statement (II) is false.

D) Statement (I) is false but statement (II) is true.

Question 4

Consider an LTI system whose response to the input

Question 5

A transfer function has a phase angle of (-2 tan-1 ωT) which varies from 0o to -180 ° as ω is increased from 0 to ∞. It is the transfer function for
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