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 100 of 117

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Q991.
Which of the following bus is used to transfer data from main memory to peripheral device?

a.

DMA bus

b.

Output bus

c.

Input bus

d.

Data bus

Discuss
Answer: (a).DMA bus
Q992.
Assertion (A): The output of an 8 bit ADC is 80 H if input is 2.5 V

Reason (R): ADC has an output range of 00 to FF H if input range is - 5 to + 5 V

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: (c).A is true, R is false
Q993.
A parity detector can detect

a.

single error only

b.

single error or odd number of errors

c.

two errors

d.

single or two errors

Discuss
Answer: (b).single error or odd number of errors
Q994.
Which of the- following display consumes least amount of power?

a.

LCD

b.

LED

c.

Fluorescent display

d.

All display consume same power

Discuss
Answer: (a).LCD
Q995.
The converter whose conversion time is independent of number of bits is

a.

dual stope

b.

counter type

c.

parallel conversion

d.

successive approximation

Discuss
Answer: (c).parallel conversion
Q996.
Serial input data of 8085 can be loaded into bit-7 of the accumulator by

a.

executing a RIM instruction

b.

executing RSTI

c.

using TRAP

d.

none of the above

Discuss
Answer: (a).executing a RIM instruction
Q997.
A crystal is frequently used in digital circuits for timing purpose because of its

a.

low cost

b.

high frequency stability

c.

simple circuitry

d.

ability to set frequency at desired value

Discuss
Answer: (b).high frequency stability
Q998.
The value of program counter of 6800 at power on are after reset is

a.

000

b.

FFFE

c.

User Programmable

d.

FFFF

Discuss
Answer: (b).FFFE
Q999.
The Boolean expression for the sub-class (Q) of all electronic instruments which are measuring instruments or are non-digital instruments with battery supply is

a.

Q = X(Y + Zฬ…)

b.

Q = X + Yฬ…Z

c.

Q = XYฬ… + Z

d.

Q = XY + Z

Discuss
Answer: (b).Q = X + Yฬ…Z
Q1000.
Serial in-serial out shift register can be built using D flip flops.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
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