GATE IN purpose:exam-prep PYQs & Answers — Page 55

Questions 541–550 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 55 of 65

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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An input

is applied to the system

. The corresponding steady state output is

, where the phase

(in degrees), when restricted to

, is ____ .

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The approximate phase response of

Your answerChoose one option.

Diagram for Instrumentation Engineering question 13

Diagram for Instrumentation Engineering question 13 (figure 2)

Diagram for Instrumentation Engineering question 13 (figure 3)

Diagram for Instrumentation Engineering question 13 (figure 4)

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Consider the transfer function

. The phase margin of

in degrees is _____.

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In the given circuit, assume that the opamp is ideal and the transistor has a

of 20. The current

(in

A) flowing through the load

is _____.

Diagram for Instrumentation Engineering question 15

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The diodes given in the circuit are ideal. At

ms,

(in Volts) is _____.

Diagram for Instrumentation Engineering question 16

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For the 3-bit binary counter shown in the figure, the output increments at every positive transition in the clock (CLK). Assume ideal diodes and the start state of the counter as 000. If output high is 1 V and output low is 0 V, the current I (in mA) flowing through the 50 Ω resistor during the 5ᵗʰ clock cycle is (up to one decimal place) ______.

Diagram for Instrumentation Engineering question 17

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The representation of the decimal number (27.625)₁₀ in base-2 number system is

Your answerChoose one option.

11011.110

11101.101

11011.101

1011.110

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The number of comparators required for implementing an 8-bit flash analog-to-digital converter is

Your answerChoose one option.

128

255

256

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A voltage of 6 cos (100πt) V is fed as y-input to a CRO. The waveform seen on the screen of the CRO is shown in the figure. The Y and X axes settings for the CRO are respectively

Diagram for Instrumentation Engineering question 20

Your answerChoose one option.

1 V/div and 1 ms/div

1 V/div and 2 ms/div

2 V/div and 1 ms/div

2 V/div and 2 ms/div

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