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Electrical Engineering - EE 2017 GATE Paper MCQ Quiz


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65 Questions MCQ Test GATE Past Year Papers for Practice (All Branches) | Electrical Engineering - EE 2017 GATE Paper MCQ Quiz

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Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 1

Here,  represents the largest integer less than or equal to t and  denotes the smallest integer greater than or equal to t. The coefficient of the second harmonic component of the Fourier series representing g(t) is _________.

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 1

Since this wave form contain hidden half wave symmetry, even harmonics does not exist.
Thus coefficient of second harmonic component of Fourier series will be zero.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 2

A source is supplying a load through a 2-phase, 3-wire transmission system as shown in figure below. The instantaneous voltage and current in phase-a are Van=220sin (100πt) V and i= 10 sin (100πt) A, respectively. Similarly for phase-b the instantaneous voltage and current are Vbn = 220 cos (100πt) V and ib = 10 cos (100πt) A, respectively.

The total instantaneous power flowing form the source to the load is 

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 2

 Pins tan eous = Van ia+ Vbn ib

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 3

 In Breakdown tests, the tests voltages required for these tests are usually of the order of

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 4

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 4

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 5

Consider an electron, a neutron and a proton initially at rest and placed along a straight line such that the neutron is exactly at the center of the line joining the electron and proton. At t=0, the particles are released but are constrained to move along the same straight line. Which of these will collide first?

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 5

The Gravitational force of alteration between any two particles shown above is made much negligible when compared to coloumbic force of alteration between electron and proton.
Force of alteration

Due to this force, the electron as well as the proton will move towards each other, since Mo << mp, he speed and acceleration of the electron will be much greater than that of proton. This causes electron to collide with the neutron faster when compared to proton.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 6

Let z (t) = x (t)* y (t) , where ‘*’  denotes convolution. Let C be a positive real-valued constant. Choose the correct expression for z (ct).

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 6

z (t) = x(t) * y(t)
⇒ z(s) = (s).y(s)

Converting into Laplace transform and applying time sealing property.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 7

A 3-bus power system is shown in the figure below, where the diagonal elements of Y-bus matrix are Y11 = - j12pu, Y22 = - j15pu and Y33 = - j7pu

The per unit values of the line reactances p, q and r shown in the figure are 

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 7

Y11 = y10 + y12 + y13 = - j12 = - (jq1 + jr1

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 8

Inelastic collisions are those in which internal changes in energy take place within an atom or a molecule at the expenses of total kinetic energy of the colliding particle. Suitable example for inelastic collisions is/are

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 9

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 9

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 10

The following measurements are obtained on a single phase load: V = 220V ±1%, I = 5.0A ±1% and W = 555W ± 2%. If the power factor is calculated using these measurements, the worst case error in the calculated power factor in percent is ________.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 10

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 11

The transfer function of a system is given by  Let the output of the system be  for the input  Then the minimum and maximum 
values of  (in radians) are respectively

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 11

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 12

The matrix  has three distinct eigenvalues and one of its eigenvectors is 

Q. Which one of the following can be another eigenvector of A?

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 12

By the properties of Eigen values and Eigen vectors, another eigen vector of A is 

The eigen vectors corresponding to distinct eigen values of a real symmetric matrix are orthogonal i.e., pair wise dot product is zero.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 13

For the power semiconductor devices IGBT, MOSFET, Diode and Thyristor, which one of the following statements is TRUE?

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 13

MOSFET → Majority carrier device (NMOS, PMOS)
Diode → both majority & minority carrier device
Transister → Npn, pnp
IGBT → input is MOSFET, Output is BJT

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 14

Consider the unity feedback control system shown. The value of K that results in a phase margin of the system to be 30° is _______. 


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 14

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 15

A solid iron cylinder is placed in a region containing a uniform magnetic field such that the cylinder axis is parallel to the magnetic field direction. The magnetic field lines inside the cylinder will

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 15

Flux always chooses less reluctance path. So flux tried to flow inside the conductor and closer to the axis of the cylinder.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 16

 If the current changes from 5A to 3A in 2 seconds and the inductance is 10H, calculate the emf.

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 16

We know that:
emf=L(i2-i1)/t
Substituting the values from the question, we get emf=10V.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 17

Consider the system with following input-output relation y [n] = (1 + (-1)n) x [n]

where, x[n] is the input and y[n] is the output. The system is 

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 17

For two different inputs we have same output. Thus one to one mapping is not possible. Hence the systems is non invertible

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 18

The slope and level detector circuit in a CRO has a delay of 100 ns. The start-stop sweep generator has a response time of 50 ns. In order to display correctly, a delay line of

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 18

The delay line should be inverted in VDP (Y-channel) only.

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 19

A 3-phase voltage source inverter is supplied from a 600V DC source as shown in the figure below. For a star connected resistive load of 20Ω per phase, the load power for 120° device conduction, in kW is __________.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 19

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 20

A closed loop system has the characteristic equation given by s3 + Ks2 + (K + ) s + 3 = 0. For this system to be stable, which one of the following conditions should be satisfied?

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 20

Given CE = s3 + ks2 + (k + 2) s + 3 = 0

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 21

A 4 pole induction machine is working as an induction generator. The generator supply frequency is 60 Hz. The rotor current frequency is 5 Hz. The mechanical speed of the rotor in RPM is

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 21

Rotor speed should be greater than syn.speeed, to ge inductance generator mode.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 22

For the circuit shown in the figure below, assume that diodes D1, D2 and D3 are ideal.

The DC components of voltages v1 and v2, respectively are

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 22

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 23

A 10-bus power system consists of four generator buses indexed as G1, G2, G3, G4 and six load buses indexed as L1, L2, L3, L4, L5, L6. The generator bus G1 is considered as slack bus, and the load buses L3 and L4 are voltage controlled buses. The generator at bus G2 cannot supply the required reactive power demand, and hence it is operating at its maximum reactive power limit. The number of non-linear equations required for solving the load flow problem using Newton-Raphson method in polar form is _______.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 23

Total no of buses=10
Given G1=slack bus, G2=generator/PQ bus
G3 , G4 are PV buses
PQ buses→ L1 , L2 , L5 , L5 (4)
Voltage controlled PV buses → L3 , L4 (2)
Minimum no of nonlinear equations to be solved = 

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 24

The power supplied by the 25 V source in the figure shown below is ________W.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 24

KCL
I + 0.4I = 14
⇒1.4I = 14
⇒ I = 10A
The power supplied by 25 V = 

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 25

In the converter circuit shown below, the switches are controlled such that the load voltage vo(t) is a 400 Hz square wave.

The RMS value of the fundamental component of vo(t) in volts is _______.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 25

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 26

The output expression for the Karnaugh map shown below is 

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 26

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Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 27

A 220 V DC series motor runs drawing a current of 30 A from the supply. Armature and field circuit resistances are 0.4 Ω and 0.1 Ω respectively. The load torque varies as the square of the speed. The flux in the motor may be taken as being proportional to the armature current. To reduce the speed of the motor by 50% the resistance in ohms that should be added in series with the armature is _________. 


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 27

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 28

The transfer function of the system Y(s)/U(s) whose state-space equations are given below is:

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 28

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 29

The load shown in the figure is supplied by a 400 V (line to line) 3-phase source (RYB sequence).  The load is balanced and inductive, drawing 3464 VA. When the switch S is in position N, the three watt-meters W1, W2 and W3 read 577.35 W each. If the switch is moved to position Y, the readings of the watt-meters in watts will be:

 

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 29

If the switch is connected to Neutral, then each wattmeter will read 

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 30

Two passive two-port networks are connected in cascade as shown in figure. A voltage source is connected at port 1.

Given V1 = A1 V2 + BI1
I1 = C1 V2 + DI2
V2 = AV3 + B2 I3
I2 = CV+ DI3

A1, B1, C1, D1, A2, B2, C2 and D2 are the generalized circuit constants. If the Thevenin equivalent circuit at port 3 consists of a voltage source VT and impedance ZT connected in series, then

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 30

We can write V1 , I1 in terms of V3 +I3

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 31

The circuit shown in the figure uses matched transistors with a thermal voltage VT = 25mV.
The base currents of the transistors are negligible. The value of the resistance R in k Ω that is required to provide 1 μA bias current for the differential amplifier block shown is ______.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 31

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Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 32

The figure below shows an uncontrolled diode bridge rectifier supplied form a 220 V, 50 Hz 1-phase ac source. The load draws a constant current Io = 14A. The conduction angle of the diode D1 in degrees is___________.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 32

Average reduction in output voltage due to Ls

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 33

A separately excited DC generator supplies 150 A to a 145 V DC grid. The generator is running at 800 RPM. The armature resistance of the generator is 0.1 Ω. If the speed of the generator is increased to 1000 RPM, the current in amperes supplied by the generator to the DC grid is _______. 


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 33

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Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 34

In the circuit shown below, the maximum power transferred to the resistor R is _______ W.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 34

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 35

Let a causal LTI system be characterized by the following differential equation, with initial rest condition

Where x(t) and y(t) are the input and output respectively. The impulse response of the system is (u(t) is the unit step function)

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 35

Given causal LTI system

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 36

Consider the differential equation  . There exists a unique solution for this differential equation when t belongs to the interval

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 36

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 37

The approximate transfer characteristic for the circuit shown below with an ideal operational amplifier and diode will be 

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 38

The switch in the figure below was closed for a long time. It is opened at t = 0. The current in the inductor of 2 H for t > 0, is

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 38

at t =0-

For t >0

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 39

The bus admittance matrix for a power system network is 

There is a transmission line, connected between buses 1 and 3, which is represented by the circuit shown in figure.

Q. If this transmission line is removed from service, What is the modified bus admittance matrix?

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 39

When the line 1-3 is removed

z13 = 0.05 = z31

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 40

In the system whose signal flow graph is shown in the figure, U1(s) and U2 (s) are inputs. The transfer function 

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 40

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 41

For a system having transfer function   a unit step input is applied at time t = 0. 
The value of the response of the system at t = 1.5 sec is __________.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 41

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 42

The magnitude of magnetic flux density (B) in micro Teslas (μT) at the center of a loop of wire wound as a regular hexagon of side length 1m carrying a current (I=1A), and placed in vacuum as shown in the figure is __________. 


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 42

For a finite length conductor B at a point P

For a given hexagon 4 for a side

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 43

The figure shows the single line diagram of a power system with a double circuit transmission line. The expression for electrical power is 1.5 sin  , where is the rotor angle. The system is operating at the stable equilibrium point with mechanical power equal to 1 pu. If one of the transmission line circuits is removed, the maximum value of as the rotor swings, is 1.221 radian. If the expression for electrical power with one transmission line circuit removed is Pmax,sin , the value of Pmax in pu is _________. 


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 43

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 44

A 375W, 230 V, 50 Hz capacitor start single-phase induction motor has the following constants for the main and auxiliary windings (at starting): Zm = (12.50 + j15.75)Ω (main winding), Za = (24.50 + j12.75)Ω (auxiliary winding). Neglecting the magnetizing branch the value of the capacitance (in μF ) to be added in series with the auxiliary winding to obtain maximum torque at starting is _______.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 44

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 45

A function f(x) is defined as 

Q. Which one of the following statements is TRUE? 

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 45

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 46

Consider a causal and stable LTI system with rational transfer function H(z). Whose corresponding impulse response begins at n = 0. Furthermore, H(1) = 5/4 The poles of H(z) are   The zeros of H(z) are all at z = 0. Let g[n] = jnh[n].
The value of g[8] equals ___________.


*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 47

Only one of the real roots of f (x) = x6 - x - 1 lies in the interval 1 < x< 2 and bisection method is used to find its value. For achieving an accuracy of 0.001, the required minimum number of iterations is ________.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 47

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Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 48

Two parallel connected, three-phase, 50Hz, 11kV, star-connected synchronous machines A and B, are operating as synchronous condensers. They together supply 50 MVAR to a 11 kV grid. Current supplied by both the machines are equal. Synchronous reactances of machine A and machine B are 1Ω and 3Ω respectively. Assuming the magnetic circuit to be linear, the ratio of excitation current of machine A to that of machine B is ________.


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 48

→syn. Condencors
→ current’s supplied both the machines are same

As the two motors, supplying reactive power only, the phasor diagaram will be

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 49

The positive, negative and zero sequence reactances of a wye-connected synchronous generator are 0.2 pu, 0.2 pu, and 0.1 pu, respectively. The generator is on open circuit with a terminal voltage of 1 pu. The minimum value of the inductive reactance, in pu, required to be connected between neutral and ground so that the fault current does not exceed 3.75 pu if a single line to ground fault occurs at the terminals is _______ (assume fault impedance to be zero). 


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 49

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 50

 be passed through an LTI system with frequency 
response H ( w) , as given in the figure below

The Fourier series representation of the output is given as

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 50

Given x(t) is a periodic signal for which Fourier transform    is to be calculated

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 51

The logical gate implemented using the circuit shown below where. V1 and V2 are inputs (with 0 V as digital 0 and 5 V as digital 1) and VOUT is the output is

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 51

So, this logic level o/p is showing the functionality of NOR-gate.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 52

A load is supplied by a 230 V, 50 Hz source. The active power P and the reactive power Q consumed by the load are such that 1 kW < P < 2kW and 1kVAR < Q < kVAR . A capacitor connected across the load for power factor correction generates 1 kVAR reactive power. The worst case power factor after power factor correction is 

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 52

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 53

The input voltage VDC of the buck-boost converter shown below varies from 32 V to 72 V. Assume that all components are ideal, inductor current is continuous, and output voltage is ripple free. The range of duty ratio D of the converter for which the magnitude of the steady state output voltage remains constant at 48 V is

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 53

*Answer can only contain numeric values
Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 54

A three-phase, three winding Δ /Δ / Y (1.1kV/6.6kV/400 V) transformer is energized from AC mains at the 1.1 kV side. It supplies 900 kVA load at 0.8 power factor lag from the 6.6 kV winding and 300 kVA load at 0.6 power factor lag from the 400 V winding. The RMS line current in ampere drawn by the 1.1 kV winding from the mains is _______. 


Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 54

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 55

Consider the line integral  The line C is shown in the figure below

The value of I is

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 55

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 56

Research in the workplace reveals that people work for many reasons_________.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 57

The probability that a k-digit number does NOT contain the digits 0.5, or 9 is

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 57

Each digit can be filled in 7 ways as 0, 5 and 9 is not allowed, so each of these places can be filled by 1, 2, 3, 4, 6, 7, 8

So required probability is 

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 58

Find the smallest number y such that  is a perfect cube.

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 58

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 59

After Rajendra Chola returned from his voyage to Indoneisa, he _______ to visit the temple in Thanjavur.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 60

Rahul, Murali, Srinivas and Arul are seated around a square table. Rahul is sitting to the left of Murali. Srinivas is sitting to the right of Arul. Which of the following pairs are seated opposite each other?

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 60

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 61

Six people are seated around a circular table. There are at least two men and two women. There are at least three right-handed persons. Every woman has a left-handed person to her immediate right. None of the women are right-handed. The number of women at the table is

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 61

Out of six people, 3 place definitely occupied by right handed people as atleast 2 women are there so these two will sit adjacently. Now as only one seat is left it will be occupied by a left handed man because on right side of this seat is sitting an right handed man.

Therefore, answer should be 2 women.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 62

The expression   is equal to

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 62

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 63

A contour line joins locations having the same height above the mean sea level. The following is a contour plot of a geographical region. Contour lines are shown at 25m intervals in this plot. If in a flood, the water level rises to 525m. Which of the villages P,Q,R,S,T get submerged?

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 63

The given contour is a hill station, the peak point of this hill station is P, it is under a contour of 550. At floods, the water level is 525m. So the village of R, S and T are under a contour of 500. Therefore these villages are submerged.

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 64

Arun, Gulab, Neel and Shweta must choose one shirt each from a pile of four shirts coloured red, pink, blue and white respectively. Arun dislikes the colour red and Shweta dislikes the colour white, Gulab and Neel like all the colours. In how many different ways can they choose the shirts so that no one has a shirt with a colour he or she dislikes?

Detailed Solution for Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 64

As there are 4 people A,G,N,S and 4 colours so without any restriction total ways have to be 

Now, Arun → dislikes Red and Shweta →dislikes white
So 16-2=14 ways

Electrical Engineering - EE 2017 GATE Paper MCQ Quiz - Question 65

“The hold of the nationalist imagination on our colonial past is such that anything inadequately or improperly nationalist is just not history.”

Q. Which of the following statements best reflects the author’s opinion?

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