INTRODUCTION SIGNAL & SYSTEM
Other, Computers
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1) Which mathematical notation specifies the condition of periodicity for a continuous time signal?
a. x(t) = x(t +T0)
b. x(n) = x(n+ N)
c. x(t) = e-αt
d. None of the above
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2) Which property of delta function indicates the equality between the area under the product of function with shifted impulse and the value of function located at unit impulse instant?
a. Replication
b. Sampling
c. Scaling
d. Product
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For a double sided function, which is odd, what will be the integral of the function from -infinity to +infinity equal to?
A) Non-zero Finite
B) Zero
c. x(t) = e-αt
d) None of the mentioned
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following conditions made digital signal processing more advantageous over analog signal processing?
a) Flexibility
b) Accuracy
c) Storage
d) All of the mentioned
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An amplitude of sinc function that passes through zero at multiple values of an independent variable ‘x’
a. Decreases with an increase in the magnitude of an independent variable (x
b. Increases with an increase in the magnitude of an independent variable (x)
c. Always remains constant irrespective of variation in magnitude of ‘x’
d. Cannot be defined
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which among the following are the stable discrete time systems?
1. y(n) = x(4n)
2. y(n) = x(-n)
3. y(n) = ax(n) + 8
4. y(n) = cos x(n)
a. 1 & 3
b. 2 & 4
c. 1, 3 & 4
d. 1, 2, 3 & 4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which block of the discrete time systems requires memory in order to store the previous input?
a. Adder
b. Signal Multiplier
c. Unit Delay
d. Unit Advance
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