# The Impulse Function – 2 MCQ’s

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “The Impulse Function – 2″.

1. What is the area of a Unit Impulse function?
a) Zero
b) Half of Unity
c) Depends on the function
d) Unity

2. Why is the impulse duration important?
a) It is zero
b) It changes with time
c) It approaches zero
d) It depends on the situation

3. What is the other name of a Continuous Time Unit Impulse Function?
a) Dirac delta function
b) Unit function
c) Area function
d ) Direct delta function

4. What are the singularity functions?
a) Derivatives and integrals of unit impulse functions
b) Derivatives of a unit impulse function
c) Integrals of an impulse function
d) Sum of successive impulse function

5. Impulse function is an odd function.
a) True
b) False

6. What is a doublet function?
a) Branch of an impulse function
b) The output of an impulse function
c) The first derivative of an impulse function
d) Any continuous time impulse function has another name that is doublet function

7. What properties does a Continuous time unit Impulse function follow?
a) Shifting, sampling, differentiation, multiplication
b) Multiplication, sampling, shifting
c) Shifting, multiplication, differentiation
d) Sampling only

8. Multiplication of a signal with a Unit Impulse function gives the value of the signal at which the impulse is located.
a) True
b) False

9. What is the area under a doublet function?
a) Unity
b) Negative
c) Zero
d) Positive

10. How are discrete unit impulse functions and discrete time unit step functions related?
a) They are inverse of each other
b) ∂(n)=u(n)-u(n-1)
c) ∂(n)=u(n)*2∂
d) Integration of unit step function gives unit step function. 5 Star
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