GATE Mock Test Electronics Engineering (ECE)- 8 - Electronics and Communication Engineering (ECE) MCQ

Directions: The following verbal analogy has two parts. One part is complete while the other one is incomplete. Complete the portion that is incomplete by selecting the right choice from the given options.

Son : Nuclear : : ______ : Extended

Direction: In the following question, a sentence, with a part of it missing and represented by a blank is given. Select the best out of the five answer choices given, to make the sentence complete and coherent (coherent means logically complete and sound).

__________ or else they would not keep electing him year after year.

Directions: Choose the sentence that best combines the given sentences.

The federal government has diversity of jobs and geographic locations. The federal government offers flexibility in job opportunities that is unmatched in the private sector.

Direction: Study the information carefully and answer the questions given below.

P is standing north of Q at a distance of 6m. R is standing toward east of P at a distance of 6m. R is to the north of S and distance between them is 6m. P is facing north direction, R is facing east, S is facing North and Q is facing towards west direction. All of them walk straight for 3m.

What is the distance between the final position of P and Q?

The first term of an AP is equal to the sum of the common ratio of a GP and the first term of the GP, which is equal to the common difference of the AP. If the sum of the first two terms of the GP is equal to the sum of the first 2 terms of the AP, then the ratio of the first term of the GP to the first term of the AP is

In a class test, A scored 51 marks. The test had 4 sections. In the second section, A scored 7 marks more than in the first section, and in the third section, A scored 7 marks more than in the second section. If A did not score at all in the fourth section, how much did A score in the second section?

Ramu is planning to get wireless internet service at his house. Two service providers A and B offer different rates as shown in the table below.

If Ramu plans on using 25 hours of internet service per month, which of the following statements is true?

Find the unit normal vector of the cone of revolution z² = 9x² + 15y² −  z² at a point (1,0,3)

Let Q√γ be the BER of a BPSK system over an AWGN channel with twosided noise power spectral density N₀/2. The parameter γ is a function of bit energy and noise power spectral density.

A system with two independent and identical AWGN channels with noise power spectral density N₀/2 is shown in the figure. The BPSK demodulator receives the sum of outputs of both the channels.

BER of this system is Q(b√γ ), then the value of b is ________.(Answer up to three decimal places)

The transfer function of a system is 10/(s²+2s+10). Find the nature of the given system.

The surface ρ = 2, ρ = 4, Φ = 45°, Φ = 135°, z = 3 and z = 4 define a closed surface. The total area of the enclosing surface is _____. (Answer up to two decimal places)

There are two energy levels E₁ and E₂ . E₁ is E eV above the fermi level and E₂ is E eV below the fermi level.

P₁ = the probability of E₁ being occupied by an electron.

P₂= the probability of E₂ being empty.

Then, which of the following is correct?

For a Hertz dipole antenna, the half power beam width (in degrees) in the E-plane is _____.(Answer up to the nearest integer)

Consider the circuit shown in the figure below

v(t) = 80e^−1000tV ;t>0

i(t) = 5e^−1000tmA ;t>0

the energy dissipated (in μ) by the resistor for 0 < t < 0.6 ms will be approximately

A die is thrown 100 times. Getting an even number is considered a success. The variance of the number of successes is ______ (Answer up to the nearest integer)

While analysing a two-port network, which of the following parameters are obtained when one-port variables are expressed in terms of the other port variables?

By simplifying the given Boolean function, Y = ABC + A'B + ABC' + AC, the minimum number of literals is

The impulse response of a second order under damped system starting from rest is given by C(t) = 12.5e^-8tcos6t

What are the responsive value of natural frequency and damping ratio of the system?

Which of the following conversions is performed by the circuit shown in figure?

For the CE amplifier shown, calculate value of lower cutoff frequency F_L (in Hz) due to C₂

The phenomenon known as "Early Effect" in a bipolar transistor refers to a reduction of the effective base-width caused by

Calculate the hysteresis width (in Volts) for an inverting Schmitt trigger with feedback fraction 0.5. Assume the supply voltage to be 10V.

Consider the following graphs:

Which of the these graphs is/are non-planar?

When a relatively small d.c. voltage is applied across a thin slice of Gallium Arsenide with thickness of order of few tenths of a micrometer and the voltage gradient across the slice is in excess of about 3300 V/cm, then the negative resistance will manifest itself. Which of the following devices operate based on the above phenomenon?

The current flowing through the resistance R in the given circuit has the form P cos 4t, where P is

In a superheterodyne AM receiver ,the image channel selectivity is determined by :

The approximate Bode magnitude plot of a minimum-phase system is shown in the figure. The transfer function of the system is