GATE IN topic:process-control PYQs & Answers — Page 30

Questions 291–300 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 30 of 65

A Zener diode is used as a 4 V voltage regulator in the circuit shown. Given that the diode requires a minimum current of 4 mA for voltage regulation, the maximum current (in milliamperes) permitted to flow through the load

is ______ (round off to one decimal place)

Diagram for Instrumentation Engineering question 31

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A bag contains six red balls and four blue balls. If three balls are drawn in succession with replacement, the probability that the second and third balls drawn are red is ______ (round off to two decimal places)

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In the bandpass filter circuit shown,

. The Q factor of the filter is ________ (round off to two decimal places)

Diagram for Instrumentation Engineering question 33

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The Newton-Raphson method is applied to determine the solution of

where

. If the initial guess of the solution is

, the value of the next approximation

is ________ (round off to two decimal places)

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An OPAMP has a gain of

, an input impedance of 10 M

and an output impedance of 100

. The OPAMP is used in unity-gain feedback configuration in a voltage buffer circuit. The closed-loop output impedance of the OPAMP (in milliohms) in the circuit is ________ (round off to one decimal place)

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A signal

shown is applied from

to the circuit shown. Given the initial voltage across the capacitor is 0.3 V, and that the diode is ideal, the open circuit voltage

is ________

Diagram for Instrumentation Engineering question 36

Your answerChoose one option.

0.3 V

0.6 V

0.7 V

1.0 V

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The signal flow graph of a system is shown. The expression for

is ________

Diagram for Instrumentation Engineering question 37

Your answerChoose one option.

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Consider the transfer function

. Bilinear transformation with a sampling period of 0.1 s is employed to obtain the discrete-time transfer function

. Then

is ________

Your answerChoose one option.

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A car is moving collinearly with a laser beam emitted by a transceiver. A laser pulse emitted at

s is received back by the transceiver 100 ns (nanoseconds) later after reflection from the car. A second pulse emitted at

s is received back 90 ns later. Given the speed of light is

m/s, the average speed of the car in this interval is ________

Your answerChoose one option.

54 kmph, moving towards the transceiver

108 kmph, moving towards the transceiver

54 kmph, moving away from the transceiver

108 kmph, moving away from the transceiver

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The signal

, where

is the unit-step function, has the Laplace transform

. The value of

is ________

Your answerChoose one option.

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GATE IN topic:process-control PYQs

Question 31

Question 32

Question 33

Question 34

Question 35

Question 36

Question 37

Question 38

Question 39

Question 40