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 90 of 117

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Q891.
Bipolar IC memories are fabricated using

a.

high density versions of MOSFET or low density versions of bipolar transistor flip-flop.

b.

high density version of MOSFET or bipolar transistor flip-flop

c.

low density versions of MOSFETs

d.

high density versions of the bipolar transistor flip-flop.

Discuss
Answer: (d).high density versions of the bipolar transistor flip-flop.
Q892.
A 3 bit binary adder can add

a.

2 bits

b.

2 bits

c.

3 bits

d.

8 bits

Discuss
Answer: (c).3 bits
Q893.
An 8156 has A₁₅ connected to its CE input. A₁₄ to A₈ are unconnected, and AD₇ to AC₀ are connected.Ignoring shadows, the port addresses

a.

80 H

b.

85 H

c.

82 H, 83 H

d.

80 H to 85 H

Discuss
Answer: (d).80 H to 85 H
Q894.
In 8085 microprocessor, what is the length of IR (instruction register)?

a.

6 bits

b.

8 bits

c.

12 bits

d.

16 bits

Discuss
Answer: (b).8 bits
Q895.
A sequence detector is required to give a logical output of 1 whenever the sequence 1011 is detected in the incoming pulse stream. Minimum number of flip-flops needed to built the sequence detector is

a.

4

b.

3

c.

1

d.

2

Discuss
Answer: (b).3
Q896.
In a shift register the data is loaded in one operation but shifted out one bit at a time, The shift register is

a.

serial in-serial out

b.

parallel in-serial out

c.

serial in-parallel out

d.

parallel in-parallel out

Discuss
Answer: (b).parallel in-serial out
Q897.
In CCD

a.

a small charge is deposited for logical 1

b.

a small charge is deposited for both logical 1 and 0

c.

a small charge is deposited for logical 0 and large charge for logical 1

d.

none of the above

Discuss
Answer: (c).a small charge is deposited for logical 0 and large charge for logical 1
Q898.
Dual slope ADC uses an op amp comparator.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q899.
The output of the 74 series of TTL gates is taken from a BST in

a.

totem pole and common collector configuration

b.

either totem pole or open collector configuration

c.

common base configuration

d.

common collector configuration

Discuss
Answer: (b).either totem pole or open collector configuration
Q900.
In the above case the hexadecimal notation for the last memory location is

a.

0000

b.

FFFF

c.

3FFF

d.

5FFF

Discuss
Answer: (b).FFFF
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