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 25 of 117

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Q241.
A half adder adds
Discuss
Answer: (a).2 bits
Q242.
The no. of comparators required in a 3 bit comparator type ADC is

a.

2

b.

3

c.

7

d.

8

Discuss
Answer: (c).7
Q243.
If the ladder reference voltage is 2 V, then minimum comparator resolution required is
Discuss
Answer: (a).0.125 V
Q244.
In a 7 segment LED display, the minimum number of segments is activated when the input decimal number is

a.

0

b.

1

c.

2

d.

3

Discuss
Answer: (b).1
Q245.
A 10 bit ADC with a full scale output voltage of 10.24 V is to be designed to have ± LSB/2 accuracy. If ADC is calibrated at 25°C, the maximum net temperature coefficient of ADC should not exceed
Discuss
Answer: (a).± 200 ฮผV/°C
Q246.
If all the LEDs in a seven segment display are turned on, the number displayed is

a.

1

b.

3

c.

0

d.

8

Discuss
Answer: (d).8
Q247.
In a three input AND gate A = 1, B = 1, C = 0 The output Y =
Discuss
Answer: (c).ABCฬ…
Discuss
Answer: (b).NOR gate and Bubbled AND gate
Discuss
Answer: (a).0.6875โ‚โ‚€
Q250.
A 4 bit down counter starts counting from 1111 irrespective of modulus.
Discuss
Answer: (b).False