1
GATE CSE 1998
MCQ (Single Correct Answer)
+1
-0.3
Regarding the power of recognition of languages, which of the following statement is false?
A
The non-deterministic finite-state automata are equivalent to deterministic finite-state automata.
B
Non-deterministic Push-down automata are equivalent to deterministic Push-down automata.
C
Non-deterministic Turing machines are equivalent to deterministic Turing machines.
D
Multi-tape Turing machines are equivalent to Single-tape Turing machines.
2
GATE CSE 1992
True or False
+1
-0
Which of the following statements is / are true / false?

Union of two recursive languages is recursive

A
TRUE
B
FALSE
3
GATE CSE 1992
True or False
+1
-0
Which of the following statements is / are true / false?

The language $$\left\{ {{0^n}\,\left| {\,n} \right.} \right.$$ is prime$$\left. \, \right\}$$ is not regular

A
TRUE
B
FALSE
4
GATE CSE 1992
True or False
+1
-0
Which of the following statements is / are true / false?

Regular languages are closed under infinite union.

A
TRUE
B
FALSE
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