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 72 of 117

Discover more Topics under Electronics and Communication Engineering

Q711.
Which binary addition is incorrect?

a.

1101.1 + 1011.1 = 11001.0

b.

101101 + 1101101 + 1100011

c.

0.0011 + 0.1110 + 1.0001

d.

1100.001 + 1011.011 = 10111.100

Discuss
Answer: (d).1100.001 + 1011.011 = 10111.100
Q712.
The inputs to a 4 channel MUX have the following bandwidths. Channel 1-50 Hz, channel 2-200 Hz. Channel 3-75 Hz. Channel 4-90 Hz. The theoretical minimum sampling rate of the MUX is

a.

200 Hz

b.

400 Hz

c.

415 Hz

d.

1600 Hz

Discuss
Answer: (d).1600 Hz
Q713.
SSI is used in flip flops.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q714.
Two numbers in excess-3 code are added and the result is less than 8. To get equivalent binary

a.

0011 is subtracted

b.

0011 is added

c.

0110 is subtracted

d.

0110 is added

Discuss
Answer: (c).0110 is subtracted
Q715.
The ASCII code is for information interchange by a binary code for

a.

alphabet only

b.

number only

c.

alpha-numeric and other common symbols

d.

none of these

Discuss
Answer: (c).alpha-numeric and other common symbols
Q716.
The recently-introduces CD-ROM PC by Head Start Technologies Co. of New York enables users to view or play __________ .

a.

vast amounts of text

b.

graphics

c.

music

d.

all of the above

Discuss
Answer: (d).all of the above
Q717.
In 8085 microprocessor, what is the length of A-register?

a.

6 bits

b.

8 bits

c.

12 bits

d.

16 bits

Discuss
Answer: (b).8 bits
Q718.
How is inversion achieved using EX-OR gate?

a.

Giving input signal to the two input lines of the gate tied together

b.

Giving input to one input line and logic one to the other line

c.

Giving input to one input line and logic one to the other line

d.

Inversion cannot be achieved using EX-OR gate

Discuss
Answer: (c).Giving input to one input line and logic one to the other line
Q719.
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
Q720.
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
Page 72 of 117