GATE EE exam:gate PYQs & Answers — Page 51

Questions 501–510 of 715. Imported answers require independent review unless marked reviewed.

Topic practice 715 questionsPage 51 of 72

In the circuit shown below, X and Y are digital inputs, and Z is a digital output. The equivalent circuit is a

Diagram for Electrical Engineering question 36

Your answerChoose one option.

NAND gate

NOR gate

XOR gate

XNOR gate

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A DC-DC buck converter operates in continuous conduction mode. It has 48 V input voltage, and it feeds a resistive load of 24

. The switching frequency of the converter is 250 Hz. If switch-on duration is 1 ms, the load power is

Your answerChoose one option.

6 W

12 W

24 W

48 W

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The line currents of a three-phase four wire system are square waves with amplitude of 100 A. These three currents are phase shifted by 120° with respect to each other. The rms value of neutral current is

Your answerChoose one option.

0 A

100 A

300 A

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and

, then

is __________.

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The probability of a resistor being defective is 0.02. There are 50 such resistors in a circuit. The probability of two or more defective resistors in the circuit (round off to two decimal places) is __________.

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A 0.1 μF capacitor charged to 100 V is discharged through a 1 kΩ resistor. The time in ms (round off to two decimal places) required for the voltage across the capacitor to drop to 1 V is ____________.

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The current

flowing in the circuit shown below in amperes is __________.

Diagram for Electrical Engineering question 42

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The voltage across and the current through a load are expressed as follows

A The average power in watts (round off to one decimal place) consumed by the load is __________.

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Diagram for Electrical Engineering question 44

The magnetic circuit shown below has uniform cross-sectional area and air gap of 0.2 cm. The mean path length of the core is 40 cm. Assume that leakage and fringing fluxes are negligible. When the core relative permeability is assumed to be infinite, the magnetic flux density computed in the air gap is 1 tesla. With same Ampere-turns, if the core relative permeability is assumed to be 100 (linear), the flux density in tesla (round off to three decimal places) calculated in the air gap is _____________.

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A single-phase transformer of rating 25 kVA, supplies a 12 kW load at power factor of 0.6 lagging. The additional load at unity power factor in kW (round off to two decimal places) that may be added before this transformer exceeds its rated kVA is ____________.

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GATE EE exam:gate PYQs

Question 36

Question 37

Question 38

Question 39

Question 40

Question 41

Question 42

Question 43

Question 44

Question 45