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Practice Test: Gate Electrical Engineering GATE 2014 Paper


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65 Questions MCQ Test GATE Past Year Papers for Practice (All Branches) | Practice Test: Gate Electrical Engineering GATE 2014 Paper

Practice Test: Gate Electrical Engineering GATE 2014 Paper for GATE 2022 is part of GATE Past Year Papers for Practice (All Branches) preparation. The Practice Test: Gate Electrical Engineering GATE 2014 Paper questions and answers have been prepared according to the GATE exam syllabus.The Practice Test: Gate Electrical Engineering GATE 2014 Paper MCQs are made for GATE 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Practice Test: Gate Electrical Engineering GATE 2014 Paper below.
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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 1

Q. No. 1 – 5 Carry One Mark Each

Choose the most appropriate phrase from the options given below to complete the following sentence.

India is a post-colonial country because

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 2

Who ___________ was coming to see us this evening?

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 3

Match the columns.

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 4

What is the average of all multiples of 10 from 2 to 198?

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 5

The value of  

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 6

Q.No. 6 – 10 Carry Two Marks Each

The old city of Koenigsberg, which had a German majority population before World War 2, is now called Kaliningrad. After the events of the war, Kaliningrad is now a Russian territory and has a predominantly Russian population. It is bordered by the Baltic Sea on the north and the countries of Poland to the south and west and Lithuania to the east respectively. Which of the statements below can be inferred from this passage?

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 7

The number of people diagnosed with dengue fever (contracted from the bite of a mosquito) in north India is twice the number diagnosed last year. Municipal authorities have concluded that measures to control the mosquito population have failed in this region.
Which one of the following statements, if true, does not contradict this conclusion?

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 8

If x is real and    then possible values of  include

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 9

The ratio of male to female students in a college for five years is plotted in the following line graph. If the number of female students doubled in 2009, by what percent did the number of male students increase in 2009?


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 9

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 10

At what time between 6 a.m. and 7 a.m will the minute hand and hour hand of a clock make an angle closest to 60°?

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 11

Q.No. 11 – 35 Carry One Mark Each

Which one of the following statements is true for all real symmetric matrices?

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 11

Eigen values of a real symmetric matrix are all real

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 12

Consider a dice with the property that the probability of a face with n dots showing up is proportional to n. The probability of the face with three dots showing up is_________.


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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 13

Maximum of the real valued function f(x)= (x −1)2/3 occurs at x equal to

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 14

All the values of the multi-valued complex function 1i, where i= √1 , are

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 15

Consider the differential equation  Which of the following is a solution to this differential equation for x > 0?

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 15

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 16

Two identical coupled inductors are connected in series. The measured inductances for the two possible series connections are 380μH and 240μH . Their mutual inductance in μH is ________


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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 17

The switch SW shown in the circuit is kept at position ‘1’ for a long duration. At t = 0+, the switch is moved to position ‘2’ Assuming |V02| > |V01| , the voltage Vc (t) across capacitor is

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 17

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 18

A parallel plate capacitor consisting two dielectric materials is shown in the figure. The middle dielectric slab is place symmetrically with respect to the plates.

If the potential difference between one of the plates and the nearest surface of dielectric interface is 2Volts, then the ratio is

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 18

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 19

Consider an LTI system with transfer function If the input to the system is cos(3t) and the steady state output is Asin(3t + α), then the value of A is

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 19

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 20

Consider an LTI system with impulse response h(t) = e-5t u (t). If the output of the system is  then the input, x(t), is given by

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 20

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 21

Assuming an ideal transformer,. The Thevenin’s equivalent voltage and impedance as seen from the terminals x and y for the circuit in figure are

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 22

A single phase, 50kVA, 1000V/100V two winding transformer is connected as an autotransformer as shown in the figure. The kVA rating of the autotransformer is


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 22

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 23

A three-phase, 4pole, self excited induction generator is feeding power to a load at a frequency f1. If the load is partially removed, the frequency becomes f2. If the speed of the generator is maintained at 1500 rpm in both the cases, then

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 23

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 24

A single phase induction motor draws 12 mW power at 0.6 lagging power. A capacitor is connected in parallel to the motor to improve the power factor of the combination of motor and capacitor to 0.8 lagging. Assuming that the real and reactive power drawn by the motor remains same as before, the reactive power delivered by the capacitor in MVAR is ____________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 24

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 25

A three phase star-connected load is drawing power at a voltage of 0.9 pu and 0.8 power factor lagging. The three phase base power and base current are 100MVA and 437.38A respectively. The line-to line load voltage in kV is ___________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 25

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 26

Shunt reactors are sometimes used in high voltage transmission system to

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 27

The closed-loop transfer function of a system is  The steady state error due to unit step input is ________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 27

Steady state error for Type-1 for unit step input is 0.

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 28

The state transition matrix for the system

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 29

The saw-tooth voltage wave form shown in the figure is fed to a moving iron voltmeter. Its reading would be close to ______________


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 29

Moving iron meter reads RMS value only RMS value of saw-tooth waveform is 

*Answer can only contain numeric values
Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 30

While measuring power of a three-phase balanced load by the two-wattmeter method, the readings are 100W and 250 W. The power factor of the load is ______________.


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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 31

Which of the following is an invalid state in an 8-4-2-1. Binary Coded Decimal counter

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 31

In binary coded decimal (BCD) counter the valid states are from 0 to 9 only in binary system 0000 to 1001 only. So, 1100 in decimal it is 12 which is invalid state in BCD counter.

*Answer can only contain numeric values
Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 32

The transistor in the given circuit should always be in active region. Take VCE(sat) = 0.2V. VEE = 0.7V. The maximum value of RC in  which can be used is __________.


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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 33

A sinusoidal ac source in the figure has an rms value of   Considering all possible values of RL, the minimum value of RS in W to avoid burnout of the Zener diode is ________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 33

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 34

A step-up chopper is used to feed a load at 400 V dc from a 250 V dc source. The inductor current is continuous. If the ‘off’ time of the switch is 20μs, the switching frequency of the chopper is kHz is __________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 34

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 35

In a constant V/f control of induction motor, the ratio V/f is maintained constant from 0 to base frequency, where V is the voltage applied to the motor at fundamental frequency f. Which of the following statements relating to low frequency operation of the motor is TRUE?

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 35

During constant V/f control, at low frequency, the voltage also applied to the induction motor is low. Hence the stator flux also decreases from its rated value.

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 36

Q.No. 36 – 65 Carry Two Marks Each

To evaluate the double integral  we make the substitution    and v = y/2 . The integral will reduce to

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 37

Let X be a random variable with probability density function


The probability P(0.5<x<5) is


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 37

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 38

The minimum value of the function  in the interval [-3. 3] is

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 38

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 39

Assuming the diodes to be ideal in the figure, for the output to be clipped, the input voltage vi must be outside the range

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 40

The voltage across the capacitor, as sown in the figure, is expressed as 

The value of A1 and A2 respectively, are

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 41

The total power dissipated in the circuit, show in the figure, is 1kW.

The voltmeter, across the load, reads 200 V. The value of XL is _________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 41

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 42

The magnitude of magnetic flux density  at a point having normal distance d meters from an infinitely extended wire carrying current of l A is μ0I/2nd (in SI units). An infinitely extended wire is laid along the x-axis and is carrying current of 4A in the +ve x direction. Another infinitely extended wire is laid along the y-axis and is carrying 2A current in the +ve y direction μ0 is permeability of free space Assume  to be unit vectors along x, y and z axes respectively.

Assuming right handed coordinate system, magnetic field intensity,  at coordinate (2,1,0) will be

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 43

A discrete system is represented by the difference equation

It has initial condition  The pole location of the system for a = 1, are

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 44

An input signal x(t) = 2 + 5sin(100πt) is sampled with a sampling frequency of 400 Hz and applied to the system whose transfer function is represented by

where, N represents the number of samples per cycle. The output y(n) of the system under steady state is

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 44

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 45

A 10 kHz even-symmetric square wave is passed through a bandpass filter with centre frequency at 30 kHz and 3 dB passband of 6 kHz. The filter output is

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 45

10 KHz even symmetric square wave have frequency component present
10KHz, 30KHz, 50KHz, 70KHz
[only odd harmonics due to half wave symmetry]
Since bandpass filter is contered at 30KHz, 30KHz component will pass through ⇒ filter output is nearly perfect cosine wave at 10 KHz
Cosine in due to reason that signal in even signal.

*Answer can only contain numeric values
Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 46

A 250 V dc shunt machine has armature circuit resistance of 0.6 and field circuit resistance of125 . The machine is connected to 250 V supply mains. The motor is operated as a generator and then as a motor separately. The line current of the machine in both the cases is 50 A. The ratio of the speed as a generator to the speed as a motor is ____________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 46

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 47

A three-phase slip-ring induction motor, provided with a commutator winding, is shown in the figure. The motor rotates in clockwise direction when the rotor windings are closed.

If the rotor winding is open circuited and the system is made to run at rotational speed fr with the help of prime-mover in anti-clockwise direction, then the frequency of voltage across slip rings is f1 and frequency of voltage across commutator brushes is f2. The values of f1 and f2 respectively are

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 47

Whenever the Rotor winding is open circuited and rotating in anti-clockwise direction then the frequency of voltage across slip rings is

At the same time frequency of voltage across commutator brushes if

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 48

A 20-pole alternator is having 180 identical stator slots with 6 conductors in each slot. All the coils of a phase are in series. If the coils are connected to realize single-phase winding, the generated voltage is V1. If the coils are reconnected to realize three-phase star-connected winding, the generated phase voltage is V2. Assuming full pitch, single-layer winding, the ratio V1/V2 is

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 48

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 49

For a single phase, two winding transformer, the supply frequency and voltage are both increased by 10%. The percentage changes in the hysteresis loss and eddy current loss, respectively, are

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 49

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 50

A synchronous generator is connected to an infinite bus with excitation voltage Ef = 1.3 pu. The generator has a synchronous reactance of 1.1 pu and is delivering real power (P) of 0.6 pu to the bus. Assume the infinite bus voltage to be 1.0 pu. Neglect stator resistance. The reactive power (Q) in pu supplied by the generator to the bus under this condition is _________.


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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 51

There are two generators in a power system. No-load frequencies of the generators are 51.5 Hz and 51Hz, respectively, and both are having droop constant of 1 Hz/MW. Total load in the system is 2.5 MW. Assuming that the generators are operating under their respective droop characteristics, the frequency of the power system in Hz in the steady state is __________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 51

Given, two generators in a power system has no load frequency of 51.5 & 51 Hz.

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 52

The horizontally placed conductors of a single phase line operating at 50 Hz are havingoutside diameter of 1.6 cm, and the spacing between centers of the conductors is 6 m. The permittivity of free space is 8.854×10−12 . The capacitance to ground per kilometer of each line is

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 53

A three phase, 100 MVA, 25 kV generator has solidly grounded neutral. The positive, negative, and the zero sequence reactances of the generator are 0.2 pu, 0.2 pu, and 0.05 pu, respectively, at the machine base quantities. If a bolted single phase to ground fault occurs at the terminal of the unloaded generator, the fault current in amperes immediately after the fault is _________.


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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 54

A system with the open loop transfer function:  is connected in a negative feedback configuration with a feedback gain of unity. For the closed loop system to be marginally stable, the value of K is ______


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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 55

For the transfer function 

The values of the constant gain term and the highest corner frequency of the Bode plot respectively are

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 56

The second order dynamic system has the matrices P, Q and R as follows:

The system has the following controllability and observability properties:

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 56

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 57

Suppose that resistors R1 and R2 are connected in parallel to give an equivalent resistor R. If resistors R1 and R2 have tolerance of 1% each., the equivalent resistor R for resistors R1 = 300 and R2 = 200 will have tolerance of

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 58

Two ammeters X and Y have resistances of 1.2 and 1.5 respectively and they give full scale deflection with 150 mA and 250 mA respectively. The ranges have been extended by connecting shunts so as to give full scale deflection with 15 A. The ammeters along with shunts are connected in parallel and then placed in a circuit in which the total current flowing is 15A. The current in amperes indicated in ammeter X is __________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 58

X and Y ammeters are connected in parallel
Shunt Registration of X and Y meters:

*Answer can only contain numeric values
Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 59

An oscillator circuit using ideal op-amp and diodes is shown in the figure

 The time duration for +ve part of the cycle is Δtand for-ve part is Δt2 .The value of  will be___________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 59

 

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 60

The SOP (sum of products) form of a Boolean function is  , where inputs are A,B,C,D (A is MSB, and D is LSB). The equivalent minimized expression of the function is

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 60

The equivalent minimized expression of this function is =

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 61

A JK flip flop can be implemented by T flip-flops. Identify the correct implementation.

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 61

Analysis:
If you will observe the combinational circuit output expression which is the input for T flip
flop is not matching directly, so you should go through the option. If you will solve the
combinational circuit of option (B) then

Now, according to consensus theorem J-K will become redundant term, so it should be
eliminated.
Hence,  which in matching with our desired result and option-(B) is correct
answer.

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 62

In an 8085 microprocessor, the following program is executed

At the end of program, register A contains

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Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 63

A fully controlled converter bridge feeds a highly inductive load with ripple free load current. The input supply (vs) to the bridge is a sinusoidal source. Triggering angle of the bridge converter is α = 30°. The input power factor of the bridge is_________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 63

For fully controlled converter bridge

Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 64

A single-phase SCR based ac regulator is feeding power to a load consisting of 5 resistance and 16 mH inductance. The input supply is 230 V, 50 Hz ac. The maximum firing angle at which the voltage across the device becomes zero all throughout and the rms value of current through SCR, under this operating condition, are

Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 64

V= 230V, 50Hz
R= 5 , L=16mH
The maximum firing angle at which the volt across device becomes zero is the angle at
which device trigger i.e. minimum firing angle to converter.

The current flowing SCR is max at their angle ie. when

*Answer can only contain numeric values
Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 65

The SCR in the circuit shown has a latching current of 40 mA. A gate pulse of 50 μs is applied to the SCR. The maximum value of R in  to ensure successful firing of the SCR is _________.


Detailed Solution for Practice Test: Gate Electrical Engineering GATE 2014 Paper - Question 65

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