1
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
The Boolean expression AC + B$$\overline C $$ is equivalent to
A
$$\overline A \,C + B\overline C + AC$$
B
$$\overline B C\, + AC + B\overline C + \overline A C\overline B $$
C
AC+$$B\overline C + \overline B C + ABC$$
D
$$\overline A \,B\,\overline C + A\,B\,\overline C + A\overline {\,B} \,C$$
2
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
A Boolean function 'f' of two variables x and y is defined as follows: f(0,0)=f(0,1)=f(1,1)=1;f(1,0)=0 Assuming complements of x and y are not available, a minimum cost solution for realizing F using only 2-input NOR gates and 2-input OR gates (each having unit cost) would have a total cost
A
1 unit
B
4 unit
C
3 unit
D
2 unit
3
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
The minimum number of 2 to 1 multiplexers required to realize a 4 to 1 mutliplexer is
A
1
B
2
C
3
D
4
4
GATE ECE 2004
MCQ (Single Correct Answer)
+1
-0.3
A master slave flip-flop has the characteristic that
A
change in the input immediately reflected in the output
B
change in the output occurs when the state of the master is affected
C
change in the output occurs when the state of the slave is affected
D
both the master and the slave states are affected at the same time
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