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 7 of 117

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Q61.
A decade counter skips

a.

binary states 1000 to 1111

b.

binary states 0000 to 0011

c.

binary states 1010 to 1111

d.

binary states 1111 to higher

Discuss
Answer: (c).binary states 1010 to 1111
Q62.
BCD input 1000 is fed to a 7 segment display through a BCD to 7 segment decoder/driver. The segments which will lit up are

a.

a, b, d

b.

a, b, c

c.

all

d.

a, b, g, c, d

Discuss
Answer: (c).all
Q63.
The given figure shows a K-map for a Boolean function. The number of essential prime implicants is

a.

4

b.

5

c.

6

d.

8

Discuss
Answer: (a).4
Q64.
For the logic circuit given, what is the simplified Boolean function?

a.

X = AB + C

b.

X = BC + A

c.

X = AB + AC

d.

X = AC + B

Discuss
Answer: (b).X = BC + A
Q65.
The accuracy of A/D conversion is generally

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q66.
Consider the following statements in connection with CMOS inverter in figure where both the MOSFET are of enhancement type and both have a threshold voltage of 2 V

statements 1: T1 conducts when vi β‰₯ 2 V
statements 2: T1 is always in saturation when v0 = 0 V

Which of the following is correct?

a.

Only statement 1 is true

b.

Only statement 2 is true

c.

Both the statement are true

d.

Both the statements are false

Discuss
Answer: (a).Only statement 1 is true
Q67.
In number system e.g. 6, a β€œdecade” counter has to recycle to 0 at the sixth count. Which of the connections indicate below will realize this resetting? (a logic β€œ0” at the R inputs resets the counters)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q68.
The logic realized by the circuit shown in figure

a.

F = A βŠ™ C

b.

F = A βŠ• C

c.

F = B βŠ™ C

d.

F = B βŠ• C

Discuss
Answer: (b).F = A βŠ• C
Q69.
The contents of stack location after the call operation will be

a.

00000111

b.

00001110

c.

00001010

d.

00001111

Discuss
Answer: (a).00000111
Q70.
In figure, R = 20KΞ© and C = 75 pF. The converter clock frequency will be

a.

606 Hz

b.

1212 Hz

c.

555 KHz

d.

606 KHz

Discuss
Answer: (a).606 Hz
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