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 53 of 117

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Q521.
Semiconductor ROM's are sometimes preferred to semiconductor RAM's because

a.

ROM's are cheaper than RAMs

b.

ROMs are faster

c.

ROMs do not require power supply for their operations

d.

Programs stored in ROMs cannot be altered either by the power failure or by the user

Discuss
Answer: (d).Programs stored in ROMs cannot be altered either by the power failure or by the user
Q522.
RAMs can be built with bipolar or CMOS transistor RAMs that are not possible with bipolar transistors are

a.

SRAM

b.

SRAM, DRAM

c.

DRAM

d.

PROM

Discuss
Answer: (c).DRAM
Q523.
RS latch can be built with

a.

NOR gates

b.

NAND gates

c.

NOR or NAND gates

d.

none of the above

Discuss
Answer: (c).NOR or NAND gates
Q524.
In D-type FF, Preset (Pr) and clear (Clr) inputs are called

a.

Synchronous

b.

Asynchronous

c.

Data

d.

None

Discuss
Answer: (b).Asynchronous
Q525.
Which memory is available in all technologies?

a.

PROM

b.

EEPROM

c.

ROM

d.

EPROM

Discuss
Answer: (a).PROM
Q526.
100101.1011₂ = __________ .

a.

115.22₈

b.

115.54₈

c.

215.54₈

d.

100.01₈

Discuss
Answer: (b).115.54₈
Q527.
An XOR gate with 6 variables is as follows A ⊕ B ⊕ C ⊕ D ⊕ E ⊕ F. The number of minterms in the Boolean expression is

a.

6

b.

12

c.

64

d.

32

Discuss
Answer: (d).32
Q528.
Periodic recharging of the memory cells at regular intervals of 3 to 8 millisecond is required in a

a.

ROM

b.

Static RAM

c.

Dynamic RAM

d.

PLA

Discuss
Answer: (c).Dynamic RAM
Q529.
The frequency of the driving network connected between pins 1 and 2 of a 8085 chip must be

a.

equal to the desired clock frequency

b.

twice the desired clock frequency

c.

four times the desired clock frequency

d.

eight times the desired clock frequency

Discuss
Answer: (b).twice the desired clock frequency
Q530.
Assertion (A): Divide-64 counter is a Mod-64 counter and divides the input frequency by 64

Reason (R): A Mod 64 counter can be obtained by cascading Mod 16 and Mod 4 counters.

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
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