Theory of Automata MCQs with Answers
Practice important Theory of Automata MCQs with answers and explanations.
Multiple Choice Questions
Q571: In the INSERT subprogram, what is the role of the marker Q?
- A: To indicate the start of insertion
- B: To replace a character with a blank
- C: To mark the cell for the next character to be inserted
- D: To terminate the insertion process
View Answer
C
Q572: In the given Turing machine example, what is the final TAPE content when the input string "aba" is processed?
- A: aba
- B: ab
- C: bba
- D: None of the above
View Answer
A
Q573: Which of the following is TRUE about a Turing machine's TAPE?
- A: It is finite in length
- B: It can move only to the right
- C: The input string is placed on the TAPE and initially filled with blanks
- D: It has a fixed number of cells
View Answer
C
Q574: What does the Turing machine's program consist of?
- A: States and transitions between them
- B: Operations on the TAPE only
- C: Memory locations and their contents
- D: Printing rules for characters only
View Answer
A
Q575: How does the INSERT subprogram affect the TAPE content?
- A: It moves characters to the right and inserts a new character
- B: It deletes characters and moves others to the left
- C: It changes the characters in the cells
- D: It replaces the entire TAPE with new content
View Answer
A
Q576: What happens when a Turing machine reaches a HALT state?
- A: The machine accepts the input string
- B: The TAPE Head moves to the left
- C: The TAPE content is erased
- D: The machine continues execution
View Answer
B
Q577: Which example illustrates the acceptance of a non-context-free language by a Turing machine?
- A: The string "aaabbbaaa"
- B: The language (a+b)b(a+b)*
- C: The language defined by (a,a,R)
- D: The language a^n b^n a^n
View Answer
A
Q578: What is the purpose of the TAPE Head’s movement in the INSERT subprogram?
- A: To reposition the TAPE Head for insertion
- B: To erase characters from the TAPE
- C: To move the TAPE Head to the left only
- D: To scan the entire TAPE for insertion
View Answer
A
Q579: When the DELETE subprogram is executed, what is the effect on characters to the right of the TAPE Head?
- A: They are moved one cell left
- B: They are replaced by blanks
- C: They remain unchanged
- D: They are moved one cell right
View Answer
A