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 14 of 117

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Q131.
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
Q132.
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
Q133.
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‚€
Q136.
A 4 bit down counter starts counting from 1111 irrespective of modulus.
Discuss
Answer: (b).False
Q137.
The number of counter states which an 8 bit stair step A/D converter has to pass through before conversion takes place is equal to
Discuss
Answer: (d).256
Q138.
74 HC series can sink upto 4 mA. The 74 LS series has IIL(max) - 0.4 mA. How many 74 LS inputs be driven by 74 HC output?
Discuss
Answer: (d).10
Q139.
An 8 bit transistor register has output voltage of low-high-low-high-low-high-low-high. The decimal number stored is
Discuss
Answer: (c).85
Q140.
The number of cells in a 4 variable K map is
Discuss
Answer: (a).16