Question Bank No: 2

1. The Boolean expression x + {[x'.(x+y)]+y.z} is equal to

 a)x'+y
 b)x+y
 c)x'.y
 d)x.y

2. If in a Boolean algebra y = xy'+x'.y∀y, then

 a)x=y
 b)x=1
 c)x= y'
 d)x=0

3. The Boolean function of the circuit whose input/output table is
q11-53

 a)f(x,y) = x+y
 b)f(x,y) = x.y
 c)f(x,y) = x'+y'
 d)f(x,y)= xy+x'y'

4. The Boolean function of the switching circuit given by the input/output table
q11-54

 a)f(x,y,z) = x.y+x'.z
 b)f(x,y,z) = x'.y'+y.z
 c)f(x,y,z) = x+y+z
 d)f(x,y,z) = x+x.y.z'