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Test: Introduction to Signals - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test GATE Electrical Engineering (EE) Mock Test Series 2025 - Test: Introduction to Signals

Test: Introduction to Signals for Electrical Engineering (EE) 2024 is part of GATE Electrical Engineering (EE) Mock Test Series 2025 preparation. The Test: Introduction to Signals questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Introduction to Signals MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Introduction to Signals below.
Solutions of Test: Introduction to Signals questions in English are available as part of our GATE Electrical Engineering (EE) Mock Test Series 2025 for Electrical Engineering (EE) & Test: Introduction to Signals solutions in Hindi for GATE Electrical Engineering (EE) Mock Test Series 2025 course. Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free. Attempt Test: Introduction to Signals | 10 questions in 30 minutes | Mock test for Electrical Engineering (EE) preparation | Free important questions MCQ to study GATE Electrical Engineering (EE) Mock Test Series 2025 for Electrical Engineering (EE) Exam | Download free PDF with solutions
Test: Introduction to Signals - Question 1

The signal x(t) = A cos(ωt + φ) is:

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All bounded periodic signals are power signals, because they do not converge to a finite value so their energy is infinite and their power is finite.

Test: Introduction to Signals - Question 2

What is the total energy of the rectangular pulse shown in figure below?

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Test: Introduction to Signals - Question 3

The value of  is the Dirac delta function, is

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Test: Introduction to Signals - Question 4

What is the simplified value of y(n) if

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Test: Introduction to Signals - Question 5

The sampling of a function f(t) = sin(2πf0t) starts from zero-crossing. The signal can be detected, if sampling time T is:

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Because fs ≤ 2f0,

Ts ≤ .

Test: Introduction to Signals - Question 6

What is the power and energy of the unit step sequence u(n) respectively?

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Test: Introduction to Signals - Question 7

For a periodic signal v(t) = 30 sin100t + 10 cos300t + 6 sin(500t + π/4), the
fundamental frequency in rad/s is

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Test: Introduction to Signals - Question 8

If a signal f(t) has energy ‘E’ the energy of the signal f(2t) is equal to:

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and 

⇒  

Test: Introduction to Signals - Question 9

Consider the sequence: x[n] = [- 4 - j5, 1 + j2, 4], the conjugate anti-symmetric part of the sequence is:

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Test: Introduction to Signals - Question 10

The function x(t) is shown in the figure. Even and odd parts of a unit step function u(t) are respectively:

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x(t) = u(t) - u(-t)

 

u(t) = 

u(-t) = 

-u(-t) = 

Hence, 

x(t) = u(t) - u(-t)

 

 

even part = [u(t) + u(-t)] / 2 = 1/2

odd part = [u(t) - u(-t)] / 2 = 1/2[x(t)]

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