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 36 of 117

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Q351.
A 6 bit R-2R ladder D/A converter has a reference voltage of 6.5 V. It meets standard linearity then resolution in percent and volts.
Discuss
Answer: (d).1.57%, 0.1 V
Q352.
What will be output for decimal input 82?
Discuss
Answer: (a).0.82 V
Q353.
Assertion (A): The access time of memory is lowest in the case of DRAM

Reason (R): DRAM uses refreshing cycle.
Discuss
Answer: (d).A is false, R is true
Q354.
In a 3 input NOR gate, the number of states in which output is 1 equals

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (a).1
Q355.
Assertion (A): Even if TTL gates and CMOS gates used in a realization have the same power supply of + 5 V, suitable circuit is needed to interconnect them

Reason (R): VOH, VOL, VIH and VIL of a TTL gave are respectively 2.4, 0.4, 2 and 0.8 V respectively. If supply voltage is + 5 V. VIL and VIH for CMOS gate for the supply voltage of + 5 V are 1.5 V and 3.5 V respectively.
Discuss
Answer: (a).Both A and R are correct and R is correct explanation of A
Q356.
The series 54 H/74 H denotes
Discuss
Answer: (b).High speed TTL
Q357.
For a 4096 x 8 EPROM, the number of address lines is
Discuss
Answer: (b).12
Q358.
Assertion (A): A PROM can be used as a synchronous counter

Reason (R): Each memory location in a PROM can be read synchronously.
Discuss
Answer: (d).A is false, R is true
Q359.
Aฬ… Bฬ… Cฬ… Dฬ… + (Aฬ…Bฬ…) C Dฬ… =
Discuss
Answer: (c).Aฬ… Bฬ… Dฬ…
Q360.
Find the output voltage for 011100 in a 6 bit R-2R ladder D/A converter has a reference voltage of 6.5 V.
Discuss
Answer: (b).2.84 V