Boolean Algebra MCQs | TechSpark AI
1. According to De Morgan’s Theorem, the complement of (A · B) is:
A) A + B
B) A' + B'
C) A' · B'
D) (A + B)'
B) A' + B'
C) A' · B'
D) (A + B)'
2. Which Boolean expression is equivalent to A · (A + B)?
A) A
B) B
C) A · B
D) A + B
B) B
C) A · B
D) A + B
3. The Boolean expression A + A' is equal to:
A) A
B) A'
C) 0
D) 1
B) A'
C) 0
D) 1
4. The Boolean equation for an OR gate with inputs A and B is:
A) A · B
B) A + B
C) A' + B'
D) A · B'
B) A + B
C) A' + B'
D) A · B'
5. Which Boolean law states that A + 1 = 1?
A) Identity Law
B) Null Law
C) Complement Law
D) Idempotent Law
B) Null Law
C) Complement Law
D) Idempotent Law
6. According to Boolean algebra, A · 0 =
A) 0
B) 1
C) A
D) A'
B) 1
C) A
D) A'
7. The Boolean expression (A + B) · A' simplifies to:
A) A
B) B
C) B'
D) 0
B) B
C) B'
D) 0
8. The commutative property of Boolean algebra applies to:
A) OR operations
B) AND operations
C) Both A and B
D) Neither A nor B
B) AND operations
C) Both A and B
D) Neither A nor B
9. Which Boolean law states that A · A = A?
A) Idempotent Law
B) Absorption Law
C) Distributive Law
D) Associative Law
B) Absorption Law
C) Distributive Law
D) Associative Law
10. The complement of the Boolean expression A + B is:
A) A' · B'
B) A' + B'
C) (A · B)'
D) A · B
B) A' + B'
C) (A · B)'
D) A · B
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