Signals and Systems MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Signals and Systems, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Signals and Systems MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Signals and Systems mcq questions that explore various aspects of Signals and Systems problems. Each MCQ is crafted to challenge your understanding of Signals and Systems principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Signals and Systems MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Signals and Systems. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Signals and Systems knowledge to the test? Let's get started with our carefully curated MCQs!

Signals and Systems MCQs | Page 25 of 48

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Q241.
A voltage wave is i = 100 sin (Ο‰t). Its average value calculated over one half cycle is

a.

zero

b.

70.72 V

c.

63.70 V

d.

none of the above

Discuss
Answer: (c).63.70 V
Q242.
An RLC series circuit has a variable inductance. The value of L for resonance conditions at fundamental frequency is 0.18 H. For resonance conditions at third harmonic frequency the value of inductance is

a.

0.54 H

b.

0.06 H

c.

0.02 H

d.

1.62 H

Discuss
Answer: (c).0.02 H
Q243.
which of the following is not correct?

a.

P(αΎΉ) = P(A) - 1

b.

0 ≀ P ≀ 1

c.

If A and B are mitual exclusive then P(A + B) = P(A) + P(B)

d.

P(αΎΉ) = 1 - P(A)

Discuss
Answer: (a).P(αΎΉ) = P(A) - 1
Q244.
If function f(t) has an initial value f(0¯) at t = 0¯, the Laplace transform of d[f(t)]/dt is

a.

sF(s) - f(0¯)

b.

sF(s) + f(0¯)

c.

s²F(s) - f(0¯)

d.

s²F(s) + f(0¯)

Discuss
Answer: (a).sF(s) - f(0¯)
Q245.
If f(t) = - f(- t) satisfies Drichlet conditions, then f(t) can be expanded in Fourier series containing

a.

only sine terms

b.

only cosine terms

c.

cosine terms and constant

d.

sine terms and constant

Discuss
Answer: (a).only sine terms
Q246.
Transfer function of a linear system is 200 e^(-j10Ο‰) The system is a

a.

distortionless Attenuator

b.

amplifier with Phase distortion

c.

distortionless Amplifier

d.

attenuator with Phase distortion

Discuss
Answer: (c).distortionless Amplifier
Q247.
which one is discrete time periodic signal?

a.

sin √3Ο€n

b.

cos √2Ο€n

c.

sin 3Ο€n

d.

all

Discuss
Answer: (c).sin 3Ο€n
Q248.
Frequency domain of a periodic triangular function is a

a.

discrete sinc function

b.

continuous sampling function

c.

discrete sampling function

d.

continuous sampling square function

Discuss
Answer: (d).continuous sampling square function
Q249.
A signal is sampled at Nyquist rate fs = 2f0. The function can be recovered from its samples only. If it is a

a.

Periodic square wave of fundamental frequency f0

b.

Triangular wave of fundamental frequency f0

c.

Periodic sine wave of fundamental frequency f0

d.

Unit impulse function

Discuss
Answer: (c).Periodic sine wave of fundamental frequency f0
Q250.
A voltage wave is v = 50 sin Ο‰t. Its average value calculated over full one cycle is

a.

zero

b.

35.36 V

c.

31.85 V

d.

none of the above

Discuss
Answer: (a).zero
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