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 96 of 117

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Q951.
How many different binary numbers can be stored in a register consisting of six switches?

a.

16

b.

32

c.

64

d.

128

Discuss
Answer: (c).64
Q952.
In one of the codes for transfer of numbers the code for the succeeding number differs from that of the number only in the change of a single digit. The code is

a.

ASCII

b.

Excess 3 CODE

c.

Gray CODE

d.

none of these

Discuss
Answer: (c).Gray CODE
Q953.
Assertion (A): TTL uses multiple emitter transistor.

Reason (R): Multiple emitter transistors with about 60 emitters have been developed.

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
Q954.
Which of the following binary product is incorrect?

a.

1100 x 1010 = 1111000

b.

1.01 x 10.1 = 11.001

c.

1100110 x 1000 = 1100110000

d.

None of the above

Discuss
Answer: (d).None of the above
Q955.
Assertion (A): The advantages of totem pole output are fast switching and low power consumption.

Reason (R): IC packages available are DIP, surface mount and J lead surface mount.

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
Q956.
If all bubbles are removed, what are the new RAM locations?

The 8156 of a figure has RAM locations from 2000 H to 20 FFH.

a.

(8000)H - (83FF)H

b.

(80AA)H - (80FF)H

c.

(FF00)H - (FFFF)H

d.

none of the above

Discuss
Answer: (c).(FF00)H - (FFFF)H
Q957.
The logic operations of the two circuits given below are

a.

complementary

b.

identical

c.

entirely different

d.

none of these

Discuss
Answer: (c).entirely different
Q958.
A 3 stage Johnson counter (ring) shown in figure is clocked at a constant frequency of fc from the starting state of Q₀ Q₁ Q₂ = 101. The frequency of output Q₀ Q₁ Q₂ will be

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q959.
In the given figure shows a 3 bit shift register using TTL flip flops. Initially all the flip flops are set to 0 state. After 8 clock pulses

a.

A = 1, B = 1, C = 1

b.

A = 1, B = 1, C = 0

c.

A = 0, B = 1, C = 1

d.

A = 0, B = 0, C = 1

Discuss
Answer: (a).A = 1, B = 1, C = 1
Q960.
Figure shows an 8-bit LED display. A light circle means that a LED is ON (binary 1) and a dark circle means a LED is OFF (binary 0). What is the decimal equivalent of the binary number displayed?

a.

100

b.

121

c.

144

d.

172

Discuss
Answer: (d).172
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