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 67 of 117

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Q661.
Minimum number of J-K flip-flop needed to construct a BCD counter is

a.

2

b.

3

c.

4

d.

5

Discuss
Answer: (c).4
Q662.
The following switching functions are to be implemented using a decoder

1. f1 = โˆ‘m (1, 2, 4, 8, 10, 14)
2. f2 = โˆ‘m (2, 5, 9, 15)
3. f3 = โˆ‘m (2, 4, 5, 6, 7)

The minimum configuration of decoder is
Discuss
Answer: (c).4 to 16 line
Q663.
TTL circuit with active pull up is preferred because of its suitability for
Discuss
Answer: (d).reasonable dissipation and speed of operation
Q664.
A parity check usually can detect
Discuss
Answer: (a).one-bit error
Q665.
Which of the following is 'synchronous'?
Discuss
Answer: (d).Clocked R-S flip-flop
Q666.
TRAP is __________ whereas RST 7.5, RST 6.5, RST 5.5 are __________ .
Discuss
Answer: (d).non-maskable, maskable
Q667.
For a binary half subtractor having two inputs A and B the correct sets of logical expressions for the outputs D (A - B) and X = Borrow are
Discuss
Answer: (c).D = Aฬ…B + ABฬ…, X = Aฬ…B
Q668.
What is the gray code word for EX-OR the binary number 101011?
Discuss
Answer: (d).011111
Q669.
In a positive edge triggered JK flip flop, J = 1, K = 0 and clock pulse is rising Q will
Discuss
Answer: (b).be 1
Discuss
Answer: (c).one half adders and 15 full adders