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

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Q711.
In JK flip flop toggle state exists if

a.

J = 0, K = 1

b.

J = 1, K = 0

c.

J = 0, K = 0

d.

J = 1, K = 1

Discuss
Answer: (d).J = 1, K = 1
Q712.
The binary number 101100.110 in octal number will be

a.

152.6

b.

154.6

c.

145.6

d.

174.6

Discuss
Answer: (b).154.6
Q713.
Thu advantage of using a dual stop ADC in a digital voltmeter is that

a.

its conversion time is small

b.

its accuracy high

c.

output is in BCD format

d.

it does not require a comparator

Discuss
Answer: (b).its accuracy high
Q714.
Which converters uses integrating op-amp?

a.

Parallel A/D converter

b.

Single slope A/D converter

c.

Dual slope A/D converter

d.

Both (b) and (c)

Discuss
Answer: (c).Dual slope A/D converter
Q715.
Assertion (A): CMOS devices have very low power consumption

Reason (R): CMOS devices have high noise margin.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is true, R is false

d.

A is false, R is true

Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q716.
Which is known as flash converter?

a.

Weighted resistor D/A converter

b.

Parallel A/D converter

c.

Stair step A/D converter

d.

Up-down counter type A/D converter

Discuss
Answer: (b).Parallel A/D converter
Q717.
In a sequential circuit the output at any instant depends on

a.

present inputs only

b.

past inputs only

c.

past outputs only

d.

past output and present input

Discuss
Answer: (d).past output and present input
Q718.
Point out the wrong statement, Sequential logic circuit is

a.

one that requires a clock to change states

b.

one in which past affects the present states

c.

one whose outputs changes immediately when the inputs change

d.

also called clock logic or synchronous logic

Discuss
Answer: (c).one whose outputs changes immediately when the inputs change
Q719.
7483 is a TTL binary adder. It can add

a.

two 4-bit binary numbers

b.

four 6-bit binary numbers

c.

four 8-bit binary numbers

d.

any number of 4-bit numbers

Discuss
Answer: (a).two 4-bit binary numbers
Q720.
A 12 bit ADC is operating with 1 ฮผs clock period. Total conversion time is 14 ฮผs. ADC is

a.

flash type

b.

counting type

c.

integrating type

d.

successive approximation type

Discuss
Answer: (c).integrating type
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