Explore topic-wise MCQs in Automata Theory.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Automata Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

If L is a regular language, then (((L )r) )* is:

A. regular
B. non regular
C. may be regular
D. none of the mentioned
Answer» B. non regular
2.

If L is a regular language, then (L ) U L will be :

A. L
B. L
C. f
D. none of the mentioned
Answer» B. L
3.

Suppose a language L1 has 2 states and L2 has 2 states. After using the cross product construction method, we have a machine M that accepts L1 L2. The total number of states in M:

A. 6
B. 4
C. 2
D. 8
Answer» C. 2
4.

If A and B are regular languages, !(A U B ) is:

A. regular
B. non regular
C. may be regular
D. none of the mentioned
Answer» B. non regular
5.

If L1 and L2 are regular languages, L1 (L2 U L1 ) will be

A. regular
B. non regular
C. may be regular
D. none of the mentioned
Answer» B. non regular
6.

If L1 and L2 are regular languages, then L1.L2 will be

A. regular
B. non regular
C. may be regular
D. none of the mentioned
Answer» B. non regular
7.

If L1, L2 are regular and op(L1, L2) is also regular, then L1 and L2 are said to be ____________ under an operation op.

A. open
B. closed
C. decidable
D. none of the mentioned
Answer» C. decidable