1. The boolean expression is equivalent to

- A+B
- AB

2. The Boolean expression X = (A + B)(C + D) represents

- two ORs ANDed together
- two ANDs ORed together
- A 4-input AND gate
- a 4-input OR gate

3. Which of the following boolean expressions is ‘NOT TRUE’?

- A + 1 = A
- A.A = A

4. The complement form of is

- A +BC + CD
- A + BC

5. The simplified form of the boolean expression is

- A + B

6. If A and B are boolean variables, then what is is

- B
- A
- A + B
- AB

7. What is the boolean expression A ⊕ B equivalent to?

- B

8. If x and y are boolean variables, which one of the following is the equivalent of **x ⊕ y ⊕ xy** equivalent to?

- x + y
- 0
- 1

9. Which of the following boolean algebra rules is correct?

- A + AB = A + B
- A(A+B) = B

10. The simplified logic form of a logic function

- A + B
- AB

11. The boolean expression may be simplified as

- Y = A
- Y = B

12. The reduced form of the boolean expression

is

- AB

13. Which one of the following statements is not correct?

14. In boolean algebra, if then

15. The expression is equivalent to

- XY