Electronics & Communication Gate Yearwise 

Electronics and Communication GATE 2022 Questions with Answer

Ques 1 Analog Electronics

Consider the circuit shown with an ideal OPAMP. The output voltage V0 is __________V (rounded off to two decimal places).

6.00 is the correct answer.


Ques 2 Analog Electronics

Select the correct statement(s) regarding CMOS implementation of NOT gates.

A

Noise Margin High (𝑁MH) is always equal to the Noise Margin Low (𝑁𝑀L), irrespective of the sizing of transistors.

B

Dynamic power consumption during switching is zero.

C

For a logical high input under steady state, the nMOSFET is in the linear regime of operation.

D

Mobility of electrons never influences the switching speed of the NOT gate.


Ques 3 Analog Electronics

An ideal OPAMP circuit with a sinusoidal input is shown in the figure. The 3 dB frequency is the frequency at which the magnitude of the voltage gain decreases by 3 dB from the maximum value. Which of the options is/are correct?

A

The circuit is a low pass filter.

B

The circuit is a high pass filter.

C

The 3 dB frequency is 1000 rad/s.

D

The 3 dB frequency is 1000/3 rad/s.


Ques 4 Analog Electronics

For the following circuit with an ideal OPAMP, the difference between the maximum and the minimum values of the capacitor voltage (VC) is __________.

A

15 V

B

27 V

C

13 V

D

14 V


Ques 5 Analog Electronics

A circuit with an ideal OPAMP is shown. The Bode plot for the magnitude (in dB) of the gain transfer function (AV(jω) = Vout(jω)/Vin(jω)) of the circuit is also provided (here, ω is the angular frequency in rad/s). The values of R and C are ____________.

A

R = 3 kΩ, C = 1 μF

B

R = 1 kΩ, C = 3 μF

C

R = 4 kΩ, C = 1 μF

D

R = 3 kΩ, C = 2 μF


Ques 6 Aptitude

Mr. X speaks _________ Japanese _________ Chinese.

A

neither / or

B

either / nor

C

neither / nor

D

also / but


Ques 7 Aptitude

A sum of money is to be distributed among P, Q, R, and S in the proportion 5 : 2 : 4 : 3, respectively.
If R gets ₹ 1000 more than S, what is the share of Q (in ₹)?

A

500

B

1000

C

1500

D

2000


Ques 8 Aptitude

A trapezium has vertices marked as P, Q, R and S (in that order anticlockwise). The side PQ is parallel to side SR.
Further, it is given that, PQ = 11 cm, QR = 4 cm, RS = 6 cm and SP = 3 cm. What is the shortest distance between PQ and SR (in cm)?

A

1.80

B

2.40

C

4.20

D

5.76


Ques 9 Aptitude

Mosquitoes pose a threat to human health. Controlling mosquitoes using chemicals may have undesired consequences. In Florida, authorities have used genetically modified mosquitoes to control the overall mosquito population. It remains to be seen if this novel approach has unforeseen consequences.
Which one of the following is the correct logical inference based on the information in the above passage?

A

Using chemicals to kill mosquitoes is better than using genetically modified mosquitoes because genetic engineering is dangerous

B

Using genetically modified mosquitoes is better than using chemicals to kill mosquitoes because they do not have any side effects

C

Both using genetically modified mosquitoes and chemicals have undesired consequences and can be dangerous

D

Using chemicals to kill mosquitoes may have undesired consequences but it is not clear if using genetically modified mosquitoes has any negative consequence


Ques 10 Aptitude

Consider the following inequalities.
(i) 2𝑥 − 1 > 7
(ii) 2𝑥 − 9 < 1
Which one of the following expressions below satisfies the above two inequalities?

A

𝑥 ≤ −4

B

−4 < 𝑥 ≤ 4

C

4 < 𝑥 < 5

D

𝑥 ≥ 5


Ques 11 Aptitude

Four points P(0, 1), Q(0, −3), R(−2, −1), and S(2, −1) represent the vertices of a quadrilateral.
What is the area enclosed by the quadrilateral?

A

4

B

4√2

C

8

D

8√2


Ques 12 Aptitude

In a class of five students P, Q, R, S and T, only one student is known to have copied in the exam. The disciplinary committee has investigated the situation and recorded the statements from the students as given below.

Statement of P: R has copied in the exam.
Statement of Q: S has copied in the exam.
Statement of R: P did not copy in the exam.
Statement of S: Only one of us is telling the truth.
Statement of T: R is telling the truth.
The investigating team had authentic information that S never lies.Based on the information given above, the person who has copied in the exam is

A

R

B

P

C

Q

D

T


Ques 13 Communication Systems

A symbol stream contains alternate QPSK and 16-QAM symbols. If symbols from this stream are transmitted at the rate of 1 mega-symbols per second, the raw (uncoded) data rate is _______ mega-bits per second (rounded off to one decimal place)

2.99-3.01 is the correct answer.


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