GATE EE discipline:electrical-electronics-and-instrumentation PYQs & Answers — Page 24

Questions 231–240 of 715. Imported answers require independent review unless marked reviewed.

The magnitude and phase plots of an LTI system are shown in the figure. The transfer function of the system is

Diagram for Electrical Engineering question 36

Your answerChoose one option.

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Consider the OP AMP based circuit shown in the figure. Ignore the conduction drops of diodes

and

. All the components are ideal and the breakdown voltage of the Zener is 5 V. Which of the following statements is true?

Diagram for Electrical Engineering question 37

Your answerChoose one option.

The maximum and minimum values of the output voltage

are +15 V and -10 V, respectively.

The maximum and minimum values of the output voltage

are +5 V and -15 V, respectively.

The maximum and minimum values of the output voltage

are +10 V and -5 V, respectively.

The maximum and minimum values of the output voltage

are +5 V and -10 V, respectively.

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Consider a lead compensator of the form

The frequency at which this compensator produces maximum phase lead is 4 rad/s. At this frequency, the gain amplification provided by the controller, assuming asymptotic Bode-magnitude plot of

, is 6 dB. The values of

, respectively, are

Your answerChoose one option.

1, 16

2, 4

3, 5

2.66, 2.25

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A 3-phase, star-connected, balanced load is supplied from a 3-phase, 400 V (rms), balanced voltage source with phase sequence R-Y-B, as shown in the figure. If the wattmeter reading is −400 W and the line current is

A (rms), then the power factor of the load per phase is

Diagram for Electrical Engineering question 39

Your answerChoose one option.

Unity

0.5 leading

0.866 leading

0.707 lagging

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An 8 bit ADC converts analog voltage in the range of 0 to +5 V to the corresponding digital code as per the conversion characteristics shown in figure. For

, which of the following digital output, given in hex, is true?

Diagram for Electrical Engineering question 40

Your answerChoose one option.

64H

65H

66H

67H

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The three-bus power system shown in the figure has one alternator connected to bus 2 which supplies 200 MW and 40 MVAr power. Bus 3 is infinite bus having a voltage of magnitude

p.u. and angle of

. A variable current source,

is connected at bus 1 and controlled such that the magnitude of the bus 1 voltage is maintained at 1.05 p.u. and the phase angle of the source current,

, where

is the phase angle of the bus 1 voltage. The three buses can be categorized for load flow analysis as

Diagram for Electrical Engineering question 41

Your answerChoose one option.

Bus 1 Slack bus Bus 2 P − |V| bus Bus 3 P − Q bus

Bus 1 P − |V| bus Bus 2 P − |V| bus Bus 3 Slack bus

Bus 1 P − Q bus Bus 2 P − Q bus Bus 3 Slack bus

Bus 1 P − |V| bus Bus 2 P − Q bus Bus 3 Slack bus

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Consider the following equation in a 2-D real-space.

for

Which of the following statement(s) is/are true.

Your answerSelect all correct options. You can choose more than one.

When p = 2, the area enclosed by the curve is

When p tends to

, the area enclosed by the curve tends to 4.

When p tends to 0, the area enclosed by the curve is 1.

When p = 1, the area enclosed by the curve is 2.

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In the figure, the electric field E and the magnetic field B point to x and z directions, respectively, and have constant magnitudes. A positive charge ‘q’ is released from rest at the origin. Which of the following statement(s) is/are true.

Diagram for Electrical Engineering question 43

Your answerSelect all correct options. You can choose more than one.

The charge will move in the direction of z with constant velocity.

The charge will always move on the y-z plane only.

The trajectory of the charge will be a circle.

The charge will progress in the direction of y.

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All the elements in the circuit shown in the following figure are ideal. Which of the following statements is/are true?

Diagram for Electrical Engineering question 44

Your answerSelect all correct options. You can choose more than one.

When switch S is ON, both

and

conducts and

is reverse biased

When switch S is ON,

conducts and both

and

are reverse biased

When switch S is OFF,

is reverse biased and both

and

conduct

When switch S is OFF,

conducts,

is reverse biased and

conducts

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The expected number of trials for first occurrence of a “head” in a biased coin is known to be 4. The probability of first occurrence of a “head” in the second trial is __________ (Round off to 3 decimal places).

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GATE EE discipline:electrical-electronics-and-instrumentation PYQs

Question 36

Question 37

Question 38

Question 39

Question 40

Question 41

Question 42

Question 43

Question 44

Question 45