1
GATE ECE 2017 Set 1
Numerical
+2
-0
A 4-bit shift register circuit configured for right-shift operation is $${D_{in}}\, \to \,A,\,A\, \to B,\,B \to C,\,C \to D,$$ is shown. If the present state of the shift register is ABCD = 1101, the number of clock cycles required to reach the state ABCD = 1111 is GATE ECE 2017 Set 1 Digital Circuits - Sequential Circuits Question 31 English
Your input ____
2
GATE ECE 2016 Set 2
MCQ (Single Correct Answer)
+2
-0.6
For the circuit shown in the figure, the delay of the bubbled NAND gate is 2ns and that of the counter is assumed to be zero GATE ECE 2016 Set 2 Digital Circuits - Sequential Circuits Question 32 English

If the clock (Clk) frequency is 1 GHz, then the counter behaves as a

A
mod-5 counter
B
mod-6 counter
C
mod-7 counter
D
mod-8 counter
3
GATE ECE 2016 Set 2
MCQ (Single Correct Answer)
+2
-0.6
The state transition diagram for a finite state machine with states A, B and C, and binary inputs X, Y and Z, is shown in the figure. GATE ECE 2016 Set 2 Digital Circuits - Sequential Circuits Question 33 English

Which one of the following statements is correct?

A
Transitions from State A are ambiguously defined.
B
Transitions from State B are ambiguously defined.
C
Transitions from State C are ambiguously defined.
D
All of the state transitions are defined unambiguously.
4
GATE ECE 2015 Set 3
MCQ (Single Correct Answer)
+2
-0.6
An SR latch is implemented using TTL gates as shown in the figure. The set and reset pulse inputs are provided using the push-button switches. It is observed that the circuit fails to work as desired. The SR latch can be made functional by changing GATE ECE 2015 Set 3 Digital Circuits - Sequential Circuits Question 34 English
A
NOR gates to NAND gates
B
inverts to buffers
C
NOR gates to NAND gates and inverters to buffers
D
5 V to ground

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