1
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
A switch-tail ring counter is made by using a single D flip-flop. The resulting circuit is a
A
SR flip-flop
B
JK flip-flop
C
D flip-flop
D
T flip-flop
2
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
The output of the circuit shown in figure is equal to GATE ECE 1995 Digital Circuits - Combinational Circuits Question 16 English
A
0
B
1
C
$$\overline A B + A\overline B $$
D
$$\left( {\overline {A \oplus B} } \right) \oplus \left( {\overline {A \oplus B} } \right)$$
3
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
An R-S latch is
A
Combinational circuit
B
Synchronous sequential circuit.
C
One bit memory element
D
One clock delay element.
4
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
The minimum number of NAND gates required to implement the Boolean function $$A + A\overline B $$ $$ + A\overline B C$$ is equal to
A
Zero
B
1
C
4
D
7