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 71 of 117

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Q701.
For edge triggering in flip flops, manufacturers use

a.

RC circuit

b.

direct coupled design

c.

either RC circuit or direct coupled design

d.

none of the above

Discuss
Answer: (b).direct coupled design
Q702.
Assertion (A): A binary number is a string of zeros and ones only

Reason (R): The base in a binary system is 2

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: (a).Both A and R are correct and R is correct explanation of A
Q703.
In a positive edge triggered JK flip flop

a.

High J and High K produce inactive state

b.

Low J and High K produce inactive state

c.

Low J and Low K produce inactive state

d.

High J and Low K produce inactive state

Discuss
Answer: (c).Low J and Low K produce inactive state
Q704.
In case of static storage elements

a.

information is permanently stored

b.

information is to be periodically refreshed

c.

information is to be intermittently refreshed

d.

information is lost in case power is removed

Discuss
Answer: (d).information is lost in case power is removed
Q705.
For a microprocessor system using IO-mapped IO the following statement is NOT true

a.

memory space available is greater

b.

not all data transfer instructions are available

c.

IO and memory address spaces are distinct

d.

IO address space is greater

Discuss
Answer: (d).IO address space is greater
Q706.
Which of the following is susceptible to race condition?

a.

R-S latch

b.

D latch

c.

Both R - S and D latches

d.

None of the above

Discuss
Answer: (a).R-S latch
Q707.
The density of the dynamic RAM is

a.

more than that of static RAM

b.

less than that of static RAM

c.

equal to that to static RAM

d.

equal to or more than that of static RAM

Discuss
Answer: (a).more than that of static RAM
Q708.
A buffer is a device that isolates other devices. Typically a buffer has

a.

a high input impedance and a low output impedance

b.

a high input impedance as well as output impedance

c.

a low input impedance and a high output impedance

d.

a low input impedance as well as output impedance

Discuss
Answer: (a).a high input impedance and a low output impedance
Q709.
Which of the following is used as switch?

a.

J-K flip-flop

b.

Master slave J-K flip-flop

c.

T-flip-flop

d.

D-flip-flop

Discuss
Answer: (d).D-flip-flop
Q710.
In a positive edge triggered D flip flop

a.

D input is called direct set

b.

Preset is called direct reset

c.

Present and clear are called direct set and reset respectively

d.

D input overrides other inputs

Discuss
Answer: (c).Present and clear are called direct set and reset respectively
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