# GATE Electrical Engineering Online Test Series, GATE EC online Test

## GATE Electrical Engineering Online Test Series 1

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GATE Electrical Engineering Online Test Series 1, GATE 2020 EE online Test 2020 Series 1 in English. GATE Electrical Engineering Full online mock test paper is free for all students. Take GATE 2020 Mock Test in English from below, GATE Quiz 2020 Series 1. You may also find other Subjects GATE Online Test in this page. Here we provide Graduate Aptitude Test in Engineering Question and Answers 2020. This GATE EE Online test Series 1 is very helpful for exam preparation. The GATE Electrical Engineering Mock Test 2020 is now available for all candidates, who will be appearing in the national level engineering exams 2020. Now take GATE Electrical Engineering Online Test Series 1 by Click on Below “**Start Quiz Button**”

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- Question 1 of 25
##### 1. Question

Consider a LTI discrete time system as shown in the figure below:

If input x[n] is a periodic sequence with period N, which of the following statements regarding output y[n] in true?

CorrectIncorrect - Question 2 of 25
##### 2. Question

In the circuit shown below, what is the value of current i?

CorrectCorrect Answer : (2-2j)A

IncorrectCorrect Answer : (2-2j)A

- Question 3 of 25
##### 3. Question

In synchronous motor, minimum armature current corresponds to

CorrectCorrect Answer : unity power factor

IncorrectCorrect Answer : unity power factor

- Question 4 of 25
##### 4. Question

A 3-phase, 10,000 kVA, 11 kV alternator has a subtransient reactance of 8%. A 3-phase short-circuit occurs at its terminals. The fault MVA and fault current are

CorrectCorrect Answer : 125 MVA, 6.56 kA

IncorrectCorrect Answer : 125 MVA, 6.56 kA

- Question 5 of 25
##### 5. Question

Following table gives the set of 10 measurements that were recorded by a student working on an experiment in the laboratory.

Measurement number Measurement value X _{n}1 98 2 101 3 102 4 97 5 101 6 100 7 103 8 98 9 106 10 99 The precision of the 6th measurement is

CorrectIncorrect - Question 6 of 25
##### 6. Question

A new Binary Coded Pentary (BCP) number system is proposed in which every digit of a base-S number is represented by its corresponding 3-bit binary code. For example, the base-S number 24 will be represented by its BCP code 010100. To which of the following numbers in base-S system does the BCP code 100010011001 correspond to?

CorrectCorrect Answer : 4231

IncorrectCorrect Answer : 4231

- Question 7 of 25
##### 7. Question

A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value of the output (line) voltage is

CorrectE

_{line(rms)}= 0.816E_{dc}= 0.816 x 500 = 408 VIncorrectE

_{line(rms)}= 0.816E_{dc}= 0.816 x 500 = 408 V - Question 8 of 25
##### 8. Question

In pumped storage scheme, the generator is also used as

CorrectCorrect Answer : synchronous motor or synchronous condenser

IncorrectCorrect Answer : synchronous motor or synchronous condenser

- Question 9 of 25
##### 9. Question

In the circuit shown in the figure (a), if current I1 = 2.5 A, the current I2 and I3 in the figures (b) and (c) respectively are

CorrectCorrect Answer : − 5 A, 10 A

IncorrectCorrect Answer : − 5 A, 10 A

- Question 10 of 25
##### 10. Question

Consider an ideal transformer as shown in the figure. Which of the following statements is true?

CorrectCorrect Answer : Neither z nor y-parameters exist for the network

IncorrectCorrect Answer : Neither z nor y-parameters exist for the network

- Question 11 of 25
##### 11. Question

The starting torque of a 3- induction motor can be increased by increasing the

CorrectCorrect Answer : rotor resistance

IncorrectCorrect Answer : rotor resistance

- Question 12 of 25
##### 12. Question

A PMMC instrument with a 100 turn coil has magnetic flux density in its air gaps of B = 0.2 T. The coil diameter is D = 1 cm and length is l = 1.5 cm. For a current of 1 mA, the torque on the coil will be

CorrectIncorrect - Question 13 of 25
##### 13. Question

The forward transfer function of a unity feedback system is

The system is stable for

CorrectIncorrect - Question 14 of 25
##### 14. Question

The positive sequence bus impedance matrix of a 4-Bus power system network is given below:

If a symmetrical fault occurs on Bus-2, the positive sequence component of fault current isCorrectIncorrect - Question 15 of 25
##### 15. Question

A four pole generator, having wave wound armature winding, has 55 slots. Each slot contains 19 conductors. What will be the voltage generated in the machine when driven at 1500 rpm, assuming the flux per pole is 3.0 mWb?

CorrectCorrect Answer : 156.75 V

IncorrectCorrect Answer : 156.75 V

- Question 16 of 25
##### 16. Question

The figures show two different sets of input and output variables for the same two-port resistive network N. Value of I

_{0}is

CorrectIncorrect - Question 17 of 25
##### 17. Question

A 220 V D.C. shunt motor runs at 500 rpm when the armature current is 50 A.

The armature resistance of the motor is 0.2 Ω . If the torque is doubled, the speed of the motor will be

CorrectIncorrect - Question 18 of 25
##### 18. Question

When torque is doubled, armature current drawn by the motor will also be doubled because

CorrectCircuit breakers are the final link in fault removal process system. The decision made by relays that a fault has been occurred on the line causes tripping of circuit breakers.

IncorrectCircuit breakers are the final link in fault removal process system. The decision made by relays that a fault has been occurred on the line causes tripping of circuit breakers.

- Question 19 of 25
##### 19. Question

An ac voltmeter using half-wave rectifier circuit is used to measure a 10 V rms ac voltage as shown in the figure. The PMMC instrument has an internal resistance of 100 Ω and full-scale deflection at 1 mA. What is the required value of series resistance?

CorrectRs = (Vm/πIdc)

So the resistance = (√2 * 100/3.14*100)-500

= – 499.55 ohm

But we know that the resistance is never negative.

So the resistance = 499.55 ohmIncorrectRs = (Vm/πIdc)

So the resistance = (√2 * 100/3.14*100)-500

= – 499.55 ohm

But we know that the resistance is never negative.

So the resistance = 499.55 ohm - Question 20 of 25
##### 20. Question

The phenomena of crawling in a 3 − cage rotor induction motor may be due to

CorrectCorrect Answer : stator circuit 3rd space harmonic

IncorrectCorrect Answer : stator circuit 3rd space harmonic

- Question 21 of 25
##### 21. Question

A three-phase, 33 kV line feeds a per-phase load of 10 MW. If the impedance of the line is Z = j20 Ω , the value of load angle (in degrees) to maintain a line voltage of 33 kV at the load is

CorrectIncorrect - Question 22 of 25
##### 22. Question

In a series generator, the field resistance is 650 Ω and the load resistance is 800 Ω . Which of the following statements is true?

CorrectCorrect Answer : The machine will not excite.

IncorrectCorrect Answer : The machine will not excite.

- Question 23 of 25
##### 23. Question

A three-phase motor draws 20 kVA at 0.707 power-factor lagging from a 220 V source. The rating of capacitor bank to make the combined power factor 0.90 lagging is

CorrectIncorrect - Question 24 of 25
##### 24. Question

For the given circuit shown in the figure, the power absorbed in R Ω resistor due to voltage source only is 24 W and that due to current source only is 216 W. The total power absorbed in the resistor due to both the sources is

CorrectIncorrect - Question 25 of 25
##### 25. Question

A process with open-loop model is controlled by a PID controller. For this purpose,

(P) the derivative mode improves transient performance

(Q) the derivative mode improves steady state performance

(R) the integral mode improves transient performance

(S) the integral mode improves steady state performance

The correct statements areCorrectCorrect Answer : (P) and (S)

IncorrectCorrect Answer : (P) and (S)