GATE IN 2018 Paper 1 — page 7

Complete GATE IN 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 19–21 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 7 of 22

Two periodic signals

and

have the same fundamental period of 3 seconds. Consider the signal

. The fundamental period of

in seconds is

Your answerChoose one option.

1.5

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Consider signal

. Let

denote the unit impulse (Dirac-delta) function. The value of the integral

Your answerChoose one option.

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An ideal square wave with period of 20 ms shown in the figure, is passed through an ideal low pass filter with cut-off frequency 120 Hz. Which of the following is an accurate description of the output?

Diagram for Instrumentation Engineering question 11

Your answerChoose one option.

Output is zero.

Output consists of both 50 Hz and 100 Hz frequency components.

Output is a pure sinusoid of frequency 50 Hz.

Output is a square wave of fundamental frequency 50 Hz.

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2018 · Paper 1

Question 9

Question 10

Question 11