Digital Circuits
Number System and Code Convertions
Marks 1Marks 2
Sequential Circuits
Marks 1Marks 2Marks 5Marks 8
Semiconductor Memories
Marks 1Marks 2
Logic Families
Marks 1Marks 2Marks 8
Analog to Digital and Digital to Analog Converters
Marks 1Marks 2
1
GATE ECE 2000
MCQ (Single Correct Answer)
+2
-0.6
A sequential circuit using D flip-flop and logic gates is shown in the figure, where X and Y are the inputs and Z is the output. The circuit is GATE ECE 2000 Digital Circuits - Sequential Circuits Question 47 English
A
S–R Flip-Flop with inputs X = R and Y = S
B
S–R Flip-Flop with inputs X = S and Y = R
C
J–K Flip-Flop with inputs X = J and Y = K
D
J–K Flip-Flop with inputs X = K and Y = J
2
GATE ECE 2000
MCQ (Single Correct Answer)
+2
-0.6
In the figure, the J and K inputs of all the four Flip-Flops are made high. The frequency of the signal at output Y is GATE ECE 2000 Digital Circuits - Sequential Circuits Question 46 English
A
0.833 KHz
B
1.0 KHz
C
0.91 KHz
D
0.77 KHZ
3
GATE ECE 1999
MCQ (Single Correct Answer)
+2
-0.6
The ripple counter shown in the figure works as a GATE ECE 1999 Digital Circuits - Sequential Circuits Question 48 English
A
mod – 3 up counter
B
mod – 5 up counter
C
mod – 3 down counter
D
mod – 5 down counter
4
GATE ECE 1998
MCQ (Single Correct Answer)
+2
-0.6
In figure, A = 1 and B = 1. The input B is now replaced by a sequence 101010 ___, the outputs x and y will be GATE ECE 1998 Digital Circuits - Sequential Circuits Question 32 English
A
fixed at 0 and 1, respectively
B
x = 1010 ------while y = 0101 ------
C
x = 1010 ----and y = 1010 ----
D
fixed at 1 and 0, respectively
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics