Digital Electronics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Digital Electronics, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Digital Electronics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Digital Electronics mcq questions that explore various aspects of Digital Electronics problems. Each MCQ is crafted to challenge your understanding of Digital Electronics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Digital Electronics MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Digital Electronics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Digital Electronics knowledge to the test? Let's get started with our carefully curated MCQs!

Digital Electronics MCQs | Page 79 of 117

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Q781.
A sequence detector is required to give a logical output of 1 whenever the sequence 1011 is detected in the incoming pulse stream. Minimum number of flip-flops needed to built the sequence detector is

a.

4

b.

3

c.

1

d.

2

Discuss
Answer: (b).3
Q782.
In a shift register the data is loaded in one operation but shifted out one bit at a time, The shift register is
Discuss
Answer: (b).parallel in-serial out
Discuss
Answer: (c).a small charge is deposited for logical 0 and large charge for logical 1
Q784.
Dual slope ADC uses an op amp comparator.
Discuss
Answer: (a).True
Discuss
Answer: (b).either totem pole or open collector configuration
Q786.
In the above case the hexadecimal notation for the last memory location is
Discuss
Answer: (b).FFFF
Q787.
What is the length of SP (Stack pointer) of 8085 ฮผp?
Discuss
Answer: (d).16 bits
Q788.
Shifting digits from left to right and vice versa is needed in
Discuss
Answer: (b).arithmetic operations
Q789.
Current requirement of a piezo buffer is about
Discuss
Answer: (c).4mA
Q790.
Consider the following instruction of 8085 ฮผp :

1. MOV M, A
2. AODC
3. MVI A, FF
4. CMP M

Which of these cause change in the status of flag(s)?
Discuss
Answer: (d).2 and 4