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 22 of 117

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Q211.
The logic circuit of the given figure is equivalent to

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q212.
In the given figure shows a logic circuit. The minimum Boolean expression for this circuit is

a.

A + B

b.

A + B + C

c.

AB + C

d.

AB + AC + BC

Discuss
Answer: (b).A + B + C
Q213.
The counter shown in the given figure is built using 4 -ve edge triggered toggle FFs. The FF can be set asynchronously when R = 0. The combinational logic required to realize a modulo-13 counter is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q214.
In the figure, the LED

a.

emits light when both S1 and S2 are closed

b.

emits light when both S1 and S2 are open

c.

emits light when only S1 and S2 is closed

d.

does not Emit light, irrespective of the switched positions

Discuss
Answer: (d).does not Emit light, irrespective of the switched positions
Q215.
Which one of the following can be used as parallel to series converter?

a.

Decoder

b.

Digital counter

c.

Multiplexer

d.

Demultiplexer

Discuss
Answer: (c).Multiplexer
Q216.
What will be conversion time of a successive approximation A/D converter which uses 2 MHz clock and 5 bit binary ladder containing 8 V reference.?

a.

2.5 ฮผ sec

b.

25 ฮผ sec

c.

3 ฮผ sec

d.

4 ฮผ sec

Discuss
Answer: (a).2.5 ฮผ sec
Q217.
A + A . B =

a.

B

b.

A . B

c.

A

d.

A or B

Discuss
Answer: (c).A
Q218.
The device 'one shot' has

a.

two stable states

b.

one stable state

c.

either 1 or 2 stable states

d.

no stable state

Discuss
Answer: (b).one stable state
Q219.
If number of information bits is 4, the parity bits in Hamming code are located at bit positions __________ from the LSB.

a.

1, 2, 5

b.

1, 2, 4

c.

1, 2, 3

d.

1, 2

Discuss
Answer: (b).1, 2, 4
Q220.
A certain JK FF has tpd = 12 n sec the largest MOD counter that can be constructed from these FF and still operate up to 10 MHz is

a.

any

b.

8

c.

256

d.

10

Discuss
Answer: (c).256
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