# Fuzzy Techniques – Transformations and Filtering MCQ Quiz

1. What is the set generated using infinite-value membership functions, called?

A. Crisp set
B. Boolean set
C. Fuzzy set
D. All of the mentioned

Answer: C

The set generated using infinite-value membership functions, called? a fuzzy set.

2. Which is the set, whose membership only can be true or false, in bi-values Boolean logic?

A. Boolean set
B. Crisp set
C. Null set
D. None of the mentioned

Answer: B

The so-called Crisp set is the one in which membership only can be true or false, in bi-values Boolean logic.

3. If Z is a set of elements with a generic element z, i.e. Z = {z}, then this set is called _____________

A. Universe set
B. Universe of discourse
C. Derived set
D. None of the mentioned

Answer: B

If Z is a set of elements with a generic element z, i.e. Z = {z}, then this set is called the universe of discourse.

4. A fuzzy set ‘A’ in Z is characterized by a ____________ that associates with an element of Z, a real number in the interval [0, 1].

A. Grade of membership
B. Generic element
C. Membership function
D. None of the mentioned

Answer: C

A fuzzy set is characterized by a membership function that associates with an element of Z, a real number in the interval [0, 1].

5. A fuzzy set is ________ if and only if the membership function is identically zero in Z.

A. Empty
B. Subset
C. Complement
D. None of the mentioned

Answer: A

A fuzzy set is called an Empty set if and only if the membership function is identically zero in Z.

6. Which of the following is a type of Membership function?

A. Triangular
B. Trapezoidal
C. Sigma
D. All of the mentioned

Answer: D

The type of Membership function is

A. Triangular
B. Trapezoidal
C. Sigma

7. Which of the following is not a type of Membership function?

A. S-shape
B. Bell shape
C. Truncated Gaussian
D. None of the mentioned

Answer: D

All of the mentioned above are types of Membership functions.

8. Using IF-THEN rule to create the output of fuzzy system is called _______________.

A. Inference
B. Implication
C. Both the mentioned
D. None of the mentioned

Answer: C

It is called Inference or Implication.

9. What is the independent variable of fuzzy output?

A. Maturity
B. Membership
C. Generic Element
D. None of the mentioned

Answer: A

Maturity is the independent variable of fuzzy output.

10. Which of the following is not a principle step in fuzzy technique?

A. Fuzzify input
B. Apply the implication method
C. Defuzzify final output
D. None of the mentioned

Answer: D

All of the mentioned above are key steps in the fuzzy technique.

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