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 10 of 117

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Q91.
A VF display operates on the principle of a vacuum diode.
Discuss
Answer: (b).False
Q92.
In a 3 input NAND gate, the number of states in which output is 1 equals

a.

8

b.

1

c.

6

d.

5

Discuss
Answer: (b).1
Q93.
In a mod-12 counter the input clock frequency is 10 kHz. The output frequency is
Discuss
Answer: (a).0.833 kHz
Q94.
What will be BCD number when the output is 0.37 V?
Discuss
Answer: (a).00110111
Q95.
The first machine cycle of an instruction is always
Discuss
Answer: (b).a fetch cycle
Q96.
A counter has N flip flops. The total number of states are
Discuss
Answer: (c).2แดบ
Q97.
Out of S, R, J, K, Preset, Clear inputs to flip flops, the synchronous inputs are
Discuss
Answer: (a).S, R, J, K only
Q98.
Assertion (A): A demultiplexer can be used as a decoder.

Reason (R): A demultiplexer can be built by using AND gates only.
Discuss
Answer: (c).A is true, R is false
Q99.
Assertion (A): The output of a NOR gate is equal to the complement of OR of input variables.

Reason (R): A XOR gate is a universal gate.
Discuss
Answer: (c).A is true, R is false
Q100.
The number of bits in ASCII is
Discuss
Answer: (d).7