Question # 1
the boolean expression AB 'CD 'is
a sumterm
a product term
a literal term
always 1
Question # 2
The boolean expression ( A + C ) ( AB'
+AC ) ( A 'C ' + B ') can be simplified to
AB '
AB + A 'C
A' B + BC
AB + BC
Question # 3
which of the following rules states
that if one input of an AND gate is
always 1 , the output is equal to the
other input ?
A + 1 =1
A + A = A
A. A = A
A .1 = A
Question # 4
The domain of the expression
AB' CD + AB' + C 'D + B is
A and D
B only
A ,B ,C and D
none of these
Question # 5
Which one of the following is NOT
a valid rule of Boolean algebra?
A + 1 = 1
A = A '
AA = A
A + 0 = A
Question # 6
The complement of a variable is
always
0
1
equal to the variable
the inverse of the variable
Question # 7
A 5 -variable karnaugh map has
sixteen cells
thirty two cells
sixty - four cells
None of these
Question # 8
The boolean expression X = AB +
CD represents
two ORs ANDed together
a 4- input AND gate
two ANDs ORed together
an exclusive-Or
Question # 9
How many data select lines are
required for selecting eight inputs ?
4
3 ( Not Confirm )
2
1
Question # 10
2' s complement of 5 is
1101
1011
0101
1100
