Explore topic-wise MCQs in Electronic Engineering (MCQ) questions & answers.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Engineering (MCQ) questions & answers knowledge and support exam preparation. Choose a topic below to get started.

1.

What would be the value of normalized energy for the causal exponential pulse shown below?

A. 8
B. 1 / 8
C. -1 / 8
D. -8
Answer» D. -8
Discussion
2.

The ESD of a real valued energy signal is always_________

A. An even (symmetric) function of frequency
B. An odd (non-symmetric) function of frequency
C. A function that is odd and half-wave symmetric
D. None of the above
Answer» B. An odd (non-symmetric) function of frequency
Discussion
3.

Which among the below mentioned assertions is /are correct?a. Greater the value of correlation function, higher is the similarity level between two signals b. Greater the value of correlation function, lower is the similarity level between two signalsc. Lesser the value of correlation function, higher is the similarity level between two signalsd. Lesser the value of correlation function, lower is the similarity level between two signals

A. Only C
B. Only B
C. A & D
D. B & C
Answer» D. B & C
Discussion
4.

Which among the following are the stable discrete time systems?1. y(n) = x(4n)2. y(n) = x(-n)3. y(n) = ax(n) + 8 4. y(n) = cos x(n)

A. 1 & 3
B. 2 & 4
C. 1, 3 & 4
D. 1, 2, 3 & 4
Answer» E.
Discussion
5.

What does the first term 'a' in the below stated expression of a line spectrum indicate?x(t) = a + a cos w t + a cos2 wt +......+b sin w t + bsin w t + .....

A. DC component
B. Fundamental component
C. Second harmonic component
D. All of the above
Answer» B. Fundamental component
Discussion
6.

Which property of fourier transform gives rise to an additional phase shift of -2 ft for the generated time delay in the communication system without affecting an amplitude spectrum?

A. Time Scaling
B. Linearity
C. Time Shifting
D. Duality
Answer» D. Duality
Discussion
7.

Which among the below assertions is precise in accordance to the effect of time scaling?A : Inverse relationship exists between the time andfrequency domain representation of signalB : A signal must be necessarily limited in time as well as frequency domains

A. A is true & B is false
B. A is false & B is true
C. Both A & B are true
D. Both A & B are false
Answer» B. A is false & B is true
Discussion
8.

Which property of periodic signal in DTFS gets completely clarified / identified by the equation x (n n)?

A. Conjugation
B. Time Shifting
C. Frequency Shifting
D. Time Reversal
Answer» C. Frequency Shifting
Discussion
9.

A Laplace Transform exists when ______A. The function is piece-wise continuousB. The function is of exponential orderC. The function is piecewise discreteD. The function is of differential order

A. A & B
B. C & D
C. A & D
D. B & C
Answer» B. C & D
Discussion
10.

What would happen if the value of term [(m-x) / ( 2)]increases in the expression of Guassian CDF?

A. Complementary error function also goes on increasing
B. Complementary error function goes on decreasing
C. Complementary error function remains constant or unchanged
D. Cannot predict
Answer» C. Complementary error function remains constant or unchanged
Discussion
11.

Consider the assertions given belowA : CDF is a monotonously increasing functionB : PDF is a derivative of CDF & is always positiveWhich among them is correct according to the properties of PDF?

A. A is true & B is false
B. A is false & B is true
C. Both A & B are true but B is a reason for A
D. Both A & B are false since B is not a reason for A
Answer» D. Both A & B are false since B is not a reason for A
Discussion