1
GATE ECE 1993
MCQ (More than One Correct Answer)
+1
-0.3
Boolean expression for the output of XNOR (equivalence) logic gate with inputs A and B is
A
$$A\overline B + \overline A B$$
B
$$\overline A \,\overline B + AB$$
C
$$(\overline A + B)(A + \overline B )$$
D
$$(\overline A \, + \overline B )(A + B)$$
2
GATE ECE 1989
MCQ (More than One Correct Answer)
+1
-0.3
Indicate which of the following logic gates can be used to realize all possible combinational Logic functions:
A
OR gates only.
B
NAND gates only.
C
EX-OR gates only.
D
NOR gates only.
3
GATE ECE 1988
MCQ (Single Correct Answer)
+1
-0.3
For the circuit shown below the output Fis given by GATE ECE 1988 Digital Circuits - Logic Gates Question 31 English
A
F=1
B
F=0
C
F=X
D
F= $$\overline X $$
4
GATE ECE 1988
MCQ (Single Correct Answer)
+1
-0.3
The minimum number of 2-input NAND gates required to implement the Boolean function Z=A$$\overline {B\,} $$C, assuming that A, B and C are available, is
A
two
B
three
C
five
D
six
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