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1
GATE ECE 2001
MCQ (Single Correct Answer)
+2
-0.6
The digital block in the figure is realized using two positive edge triggered D flip-flops. Assume that for t < t0, Q1 = Q2 =0. The circuit in the digital block is given by

GATE ECE 2001 Digital Circuits - Sequential Circuits Question 51 English
A
GATE ECE 2001 Digital Circuits - Sequential Circuits Question 51 English Option 1
B
GATE ECE 2001 Digital Circuits - Sequential Circuits Question 51 English Option 2
C
GATE ECE 2001 Digital Circuits - Sequential Circuits Question 51 English Option 3
D
GATE ECE 2001 Digital Circuits - Sequential Circuits Question 51 English Option 4
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 52 English
A
0.833 KHz
B
1.0 KHz
C
0.91 KHz
D
0.77 KHZ
3
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 53 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
4
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 54 English
A
mod – 3 up counter
B
mod – 5 up counter
C
mod – 3 down counter
D
mod – 5 down counter
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GATE ECE Subjects

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Control Systems
Time Response Analysis Signal Flow Graph and Block Diagram State Space Analysis Basic of Control Systems Compensators Root Locus Diagram Stability Frequency Response Analysis
Engineering Mathematics
Probability and Statistics Linear Algebra Complex Variable Transform Theory Vector Calculus Differential Equations Calculus Numerical Methods
Analog Circuits
Diodes Bipolar Junction Transistor Frequency Response FET and MOSFET Oscillators Operational Amplifier Feedback Amplifier Power Amplifier 555 Timer
Network Theory
Network Elements Network Theorems Transient Response Sinusoidal Steady State Response Two Port Networks Network Graphs State Equations For Networks Miscellaneous
Electromagnetics
Maxwell Equations Transmission Lines Uniform Plane Waves Waveguides Antennas Miscellaneous
Electronic Devices and VLSI
Semiconductor Physics PN Junction BJT and FET IC Basics and MOSFET
Digital Circuits
Sequential Circuits Number System and Code Convertions Logic Gates Combinational Circuits Semiconductor Memories Logic Families Analog to Digital and Digital to Analog Converters Boolean Algebra
Microprocessors
Pin Details of 8085 and Interfacing with 8085 Instruction Set and Programming with 8085
Signals and Systems
Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous
Communications
Analog Communication Systems Digital Communication Systems Random Signals and Noise Fundamentals of Information Theory Noise In Digital Communication
General Aptitude
Verbal Ability Logical Reasoning Numerical Ability
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