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 42 of 48

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Q411.
For a second order system, damping ratio ζ is such that 0 < ζ <. Then the roots of characteristic equation are

a.

real but not equal

b.

real and equal

c.

complex conjugate

d.

imaginary

Discuss
Answer: (c).complex conjugate
Q412.
If f(t)↔ F(jω), and f(t) is real, then F(- jω)

a.

F(jω)

b.

F*(j↔)

c.

F*(- jω)

d.

none of these

Discuss
Answer: (b).F*(j↔)
Q413.
Fourier transform of the function f(t) = 1 is

a.

2π δ (ω)

b.

π δ (ω)

c.

δ(ω)/2π

d.

δ(ω)/π

Discuss
Answer: (a).2π δ (ω)
Q414.
The inverse response of a system h(n) = aⁿ∪(n) what is the condition for the system to be BIBO stable?

a.

a is real and +ve

b.

a is real and -ve

c.

|a| > 1

d.

|a| < 1

Discuss
Answer: (c).|a| > 1
Q415.
A system has poles at 0.01 Hz, 1 Hz and 80 Hz, zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is

a.

-90°

b.

0°

c.

90°

d.

-180°

Discuss
Answer: (a).-90°
Q416.
Fourier transform of sgn (t) is

a.

2/jω

b.

1/jω

c.

U(t)

d.

2δ(ω)

Discuss
Answer: (a).2/jω
Q417.
If the number of ways an event may result ins analysed into m successes and n failures, each equally likely to occur, the probability of success in a single trial is m( m + n)

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q418.
If X(z) = (1 - a)z¯¹/[(1 - z¯¹)(1 - az¯¹)] and 1 < |z|, the final value of xk is

a.

0

b.

1

c.

∞

d.

2

Discuss
Answer: (b).1
Q419.
Final value theorem is used to find

a.

steady state value of system output

b.

initial value of output

c.

transient beaviour of output

d.

none of these

Discuss
Answer: (a).steady state value of system output
Q420.
Which one of following is correct condition to check the stability of sysytem in terms of impulse response?

a.

Σ(x(n)) < ∞

b.

Σx(n) < 0

c.

Σx(n) = 0

d.

Σx(n) = ∞

Discuss
Answer: (a).Σ(x(n)) < ∞
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