1 
The value of logical operator OR will be 1 if: 
 A. A = 0 & B = 1
 B. A = 1 & B = 1
 C. A = 1 & B = 1
 D. all of these

2 
A̅C + A̅B + ABC + BC= 
 A. C + A̅B
 B. C + AB̅
 C. C + A̅B̅
 D. C̅ +AB

3 
A Boolean variable can only have one of the two values: 
 A. 3,1
 B. 2,1
 C. 0,1
 D. 4,0

4 
Which of the following logical operator is denoted by + sign. 
 A. AND
 B. OR
 C. NOR
 D. NOT

5 
Boolean algebra was formulated by george Boole in: 
 A. 1947
 B. 1847
 C. 1747
 D. 1647

6 
Which of following logical operator is denoted by prime sign <b>(/)</b> or bar sign <b>()</b> over the variable? 
 A. AND
 B. OR
 C. NOT
 D. NOR

7 
The absorption law states that for two variables x and y 
 A. x. x = x and y. y = x
 B. x. y = y. x
 C. x + x . y = x + y and x. (x+y) = x
 D. None of these

8 
a+b=b+a status: 
 A. Commutative law
 B. Associative law
 C. Distributive law
 D. None of these

9 
KMap is used to 
 A. Evaluate a Boolean expression
 B. Simplify a boolean expression
 C. Both a and b
 D. None of these

10 
Demorgan's Law states that 
 A. a(b+c) = a.b+a.c
 B. a+(b+c) = (a+b)+c
 C. a̅+̅b̅ = a̅. b̅
 D. None of these
