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 94 of 117

Discover more Topics under Electronics and Communication Engineering

Q931.
Data are recorded on a 2, 400 ft reel of magnetic tape at a density of 556 characters per inch. If the record length is of 100 characters and 0.75 inch of record gap, the tape utilization factor is

a.

0.85

b.

0.67

c.

0.19

d.

0.08

Discuss
Answer: (c).0.19
Q932.
Some of MOS families are PMOS, CMOS, the family dominating the LSI field, where low power consumption is necessary is

a.

NMOS

b.

CMOS

c.

PMOS

d.

both NMOS, CMOS

Discuss
Answer: (b).CMOS
Q933.
For a particular type of memory the access time and cycle time are 200 ns each. The maximum rate at which data can be accessed by

a.

2.5 x 10โถ/s

b.

5 x 10โถ/s

c.

0.2 x 10โถ/s

d.

10โถ/s

Discuss
Answer: (a).2.5 x 10โถ/s
Q934.
Data from a satellite is received in serial form (1 bit after another). If this data is coming at a 5 MHz rate and if the clock frequency is 5 MHz how long will it take to serially load a word in a 32-bit shift register?

a.

1.6ms

b.

3.2ms

c.

6.4ms

d.

12.8ms

Discuss
Answer: (c).6.4ms
Q935.
Assuming accumulator contain A 64 and the carry is set (1). What will register A and (CY) contain after CMA?

a.

6 AH, 1

b.

6 AH, 0

c.

59 H, 0

d.

9 H, 0

Discuss
Answer: (c).59 H, 0
Q936.
The minimum number of 2 input NAND gates required to implement Boolean function A Bฬ… C is A, B, C are available is

a.

2

b.

3

c.

5

d.

6

Discuss
Answer: (c).5
Q937.
Single parity check is not reliable in case of

a.

paper tape

b.

magnetic tape

c.

magnetic drum

d.

cores

Discuss
Answer: (c).magnetic drum
Q938.
A 0 to 6 counter consist of 3 flip-flop and a combinational circuit of 2 input gates. The combinational circuit consist of

a.

one AND gate

b.

one OR gate

c.

one AND and One OR

d.

two AND gate

Discuss
Answer: (d).two AND gate
Q939.
In an op-amp a virtual ground is a ground for

a.

voltage only

b.

current only

c.

both voltage and current

d.

neither voltage nor current

Discuss
Answer: (a).voltage only
Q940.
Assuming accumulator contain A 64 and the carry is set (1). What will register A and (CY) contain after SBI 0B7H?

a.

12 H, 0

b.

12 H, 1

c.

DDH, 0

d.

DDH, 1

Discuss
Answer: (d).DDH, 1
Page 94 of 117