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 39 of 48

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Q381.
The range of values of a and b for which the linear time invariant system with impulse response.

h(n) = aⁿ n ≥ 0        
= bⁿ n < 0

will be stable if

a.

|a| > 1, |b| > 1

b.

|a| < 1, |b| < 1

c.

|a| < 1, |b| > 1

d.

|a| > 1, |b| < 1

Discuss
Answer: (c).|a| < 1, |b| > 1
Q382.
If f(- t) = f(t), the function f(t) has only cosine terms.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q383.
Out of the three transforms viz. Z-transform, Laplace transform and Fourier transform

a.

all three are used in continuous time domain

b.

all three are used in both continuous time domain and discrete time domain

c.

Z transform is used in continuous time domain while Laplace and Fourier transforms are used in discrete time domain

d.

Z transform is used is discrete time domain while Laplace and Fourier transforms are used in continuous time domain

Discuss
Answer: (d).Z transform is used is discrete time domain while Laplace and Fourier transforms are used in continuous time domain
Q384.
The integral of k u(t) is

a.

a ramp of slope k

b.

a ramp of slope 1/k

c.

k δ(t)

d.

1/k [δ(t)]

Discuss
Answer: (a).a ramp of slope k
Q385.
If a complex voltage wave is applied to a pure inductance, the resulting current wave is much smoother than the voltage wave.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q386.
The discrete time system describes by y(n) = x(n²) is

a.

casual, Linear, time varying

b.

casual, non-linear, timevari

c.

non-casual, Linear, time invariant

d.

non-casual, non-linear, time variant

Discuss
Answer: (a).casual, Linear, time varying
Q387.
A system is stable if ROC

a.

include the unit circle

b.

exclude the unit circle

c.

lies on Circle

d.

entire plane

Discuss
Answer: (a).include the unit circle
Q388.
The Laplace transform of a unit step function is

a.

1

b.

1 / s

c.

s

d.

1 / s²

Discuss
Answer: (b).1 / s
Q389.
If ROC of x[n] is R1 then ROC of aⁿ x[n] is

a.

R1a

b.

R1/a

c.

a/R1

d.

R1 + a

Discuss
Answer: (b).R1/a
Q390.
x = AX + Bu is a state equation.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
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