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 49 of 117

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Q481.
Assertion (A): In a magnitude comparator IC the cascading inputs provide a means to cascade the 4 bit comparators

Reason (R): A magnitude comparator has three outputs, A = B, A > B and A < B

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
Q482.
(1001-10) is equal to

a.

7

b.

(8)โ‚ˆ

c.

(7)โ‚„

d.

(8)โ‚„

Discuss
Answer: (a).7
Q483.
A compiler is a software programme which

a.

change high level Programming language into low level machine language

b.

change the program into binary form

c.

assembles the program

d.

executes the program

Discuss
Answer: (a).change high level Programming language into low level machine language
Q484.
Assertion (A): The resolution of a DAC depends on the number of bits.

Reason (R): Low resolution leads to fine control.

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
Q485.
(62)โ‚โ‚€ in binary system is

a.

110000

b.

111100

c.

111110

d.

111111

Discuss
Answer: (c).111110
Q486.
Some of MOS families are PMOS, NMOS, CMOS. The family dominating the LSI field where low power consumption is necessary is

a.

NMOS

b.

CMOS

c.

PMOS

d.

both NMOS and CMOS

Discuss
Answer: (b).CMOS
Q487.
The ASCII code is

a.

5-bit code

b.

7-bit code

c.

9-bit code

d.

11-bit code

Discuss
Answer: (b).7-bit code
Q488.
The binary addition 1 + 1 =

a.

11

b.

10

c.

111

d.

100

Discuss
Answer: (b).10
Q489.
The Boolean function A + BC is a reduced form of

a.

AB + BC

b.

(A + B) . (A + C)

c.

Aฬ…B + ABฬ…C

d.

(A + C) . B

Discuss
Answer: (c).Aฬ…B + ABฬ…C
Q490.
Which of the following statements is not true in regard to storage time of a transistor?

a.

The transistor is in active region

b.

Both junctions are forward-biased

c.

The collector injects electrons or holes into the base region

d.

It is the time taken by the carriers to leave the base region

Discuss
Answer: (a).The transistor is in active region
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