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Electronics and Communication Engineering (ECE) Exam  >  Electronics and Communication Engineering (ECE) Tests  >  Test: Basics - Electronics and Communication Engineering (ECE) MCQ

Test: Basics - Electronics and Communication Engineering (ECE) MCQ


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10 Questions MCQ Test - Test: Basics

Test: Basics for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Test: Basics questions and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus.The Test: Basics MCQs are made for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Basics below.
Solutions of Test: Basics questions in English are available as part of our course for Electronics and Communication Engineering (ECE) & Test: Basics solutions in Hindi for Electronics and Communication Engineering (ECE) course. Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free. Attempt Test: Basics | 10 questions in 30 minutes | Mock test for Electronics and Communication Engineering (ECE) preparation | Free important questions MCQ to study for Electronics and Communication Engineering (ECE) Exam | Download free PDF with solutions
Test: Basics - Question 1
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In the below figure if R value is increased then which of the following is true?

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In the circuit shown voltage across capacitor decays exponentially with time at a rate determined by time constant RC. Hence the larger the resistor, the slower will be the rate of decay of v (t) with time.

Test: Basics - Question 2
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Test: Basics - Question 3
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The time period of the continuous-time sinusoidal signal is given by _____.

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X (t) = A cos (wt + φ) is the continuous-time sinusoidal signal and its period is given by
T = 2π / w where w is the frequency in radians per second.

Test: Basics - Question 4
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What is the convolution y[n] = x[n]*h[n] : where x[n] = an u[n], h[n] = βn u[n], α ≠ β, α = 0.8, β = 0.9 ?
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Test: Basics - Question 5
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Let P be linearity, Q be time invariance, R be causality and S be stability. In question discrete time input x[n] and output y[n] relationship has been given. In the option properties of system has been given. Choose the option which match the properties for system.
Q. y[n] = nx[n]
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 (Homogeneous)

= y1[n] + y2 [n] (Additive)
Since the system is homogeneous and additive, it is also linear.
 (Time variant)
At any discrete time, n = no the response depends only on the excitation at that same time. (Causal)
If the excitation is a constant, the response is unbounded as n approaches infinity. (Unstable)

Test: Basics - Question 6
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In question y[n] is the convolution of two signal. Choose correct option for y[n].
y[n] = u [n + 3] * u[n-3]
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For n - 3 < -3 or n < 0, y[n] = 0
for n - 3 ≥ -3  or

y[n] = ( n + 1) u[ n]

Test: Basics - Question 7
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The convolution of  and h[n] = u[n - 1] is f [ n]u[n - 1]. The function f [n] is:
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For n - 1<0 or n < 1 , y[n] = 0
For n - 1 ≥ 0 or

Test: Basics - Question 8
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Let P be linearity, Q be time invariance, R be causality and S be stability. In question discrete time input x[n] and output y[n] relationship has been given. In the option properties of system has been given. Choose the option which match the properties for system.
Q. y[ n] = rect ( x[ n])
Detailed Solution for Test: Basics - Question 8


 (Not Homogeneous not linear)

 (Time Invariant) At any discrete time n  = no , the response depends only on the excitation at that discrete time.
(Causal) No matter what values the excitation may have the response can only have the values zero or one.

Test: Basics - Question 9
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Let the input be u and the output be y of a system, and the other parameters are real constants. Identify which among the following systems is not a linear system:
Test: Basics - Question 10
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A discrete - time signal x[n] = sin (π2n), n being an integer is
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Important Questions for Basics

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Basics MCQs with Answers

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