1
GATE ECE 1989
MCQ (More than One Correct Answer)
+1
-0
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.
2
GATE ECE 1988
MCQ (Single Correct Answer)
+1
-0.3
Minimum number of 2-input NAND gates required to implement the function, f=($$\overline X $$+$$\overline Y $$)(Z+W) is
A
3
B
4
C
5
D
6
3
GATE ECE 1988
MCQ (Single Correct Answer)
+1
-0.3
For the identity AB+$$\overline A $$ C + BC= AB + $$\overline A $$ C, The dual form is
A
(a+b)($$\overline A + c$$)(b+c)=(a+b)($$\overline A $$+C)
B
($$\overline A + \overline B )(A + \overline C )(\overline B + \overline C ) = \overline {(A} \, + \overline B )(A + \overline C )$$
C
$$(A + B)(\overline A + C)(B + C) = (\overline A + \overline {B)} (A + \overline C )$$
D
$$\overline A \,\overline B + A\,\overline C + \overline B \,\overline C = \,\overline A \overline B + A\,\overline C $$
4
GATE ECE 1988
MCQ (Single Correct Answer)
+1
-0.3
The Boolean function A+BC is a reduced form of
A
AB+BC
B
(A+B).(A+C)
C
$$\overline A $$B+A$$\overline B $$ C
D
(A+C).B
GATE ECE Subjects
EXAM MAP