Digital Circuits [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 27 - 30 of 271

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Question 27

Digital Circuits
Latches and Flip-Flops

Appeared in Year: 2010

Question

MCQ▾

Assuming that the flip-flop are in reset condition initially, the count sequence observed at , in the circuit shown is

The Combinational Circuit Consisting D Flip-Flops

Choices

Choice (4)Response

a.

0110100 … .

b.

0010111 …

c.

0001011 …

d.

0101111 …

Question 28

Digital Circuits
Latches and Flip-Flops

Appeared in Year: 2005

Question

MCQ▾

The given figure shows a ripple counter using positive edge triggered flip-flops. If the present state of the counter is then is next state will be

The Ripple Counter using3 Positive Edge Triggered JK Flip-Flops

Choices

Choice (4)Response

a.

101

b.

100

c.

111

d.

010

Question 29

Digital Circuits
Programming

Appeared in Year: 2004

Question

MCQ▾

Consider the sequence of 8085 instructions given below

  1. LXIH, 9258
  2. MOVA, M
  3. CMA
  4. MOVM, A

Which one of the following is performed by this sequence?

Choices

Choice (4)Response

a.

Contents of location 5892 are complemented and stored in location 5892

b.

Contents of location 8529 are complemented and stored in location 8529

c.

Contents of location 9258 are moved to the accumulator

d.

Contents of location 9258 are compared with the contents of the accumulator

Question 30

Digital Circuits
Sample and Hold Circuits, ADCs and DACs

Appeared in Year: 2000

Question

MCQ▾

The number of comparators in a 4 bit flash ADC is

Choices

Choice (4)Response

a.

5

b.

16

c.

15

d.

4

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