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 84 of 117

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Q831.
Consider the following statements Timer 555 can be used as

1. monostable multivibrator
2. bistable multivibrator
3. astable multivibrator

Which of the above statements are correct?

a.

1 and 2

b.

1 and 3

c.

2 and 3

d.

1, 2, 3

Discuss
Answer: (b).1 and 3
Q832.
Which is correct with respect to computer memory?

a.

Only a particular address can have a particular memory

b.

Any address can have any memory

c.

To read a word from computer memory, it is not necessary to specify a location

d.

None of the above

Discuss
Answer: (b).Any address can have any memory
Q833.
A 3 bit binary adder should use

a.

3 full adders

b.

2 full adders and 1 half adder

c.

1 full adder and 2 half adders

d.

3 half adders

Discuss
Answer: (b).2 full adders and 1 half adder
Q834.
For a depletion type NMOS, Vp = - 4 volts. For VGS = 0, 1D = 16 mA in the pinch off region of VDS. For VGS = - 2, the value of ID in the pinch off region of VDS is given by

a.

64 mA

b.

32 mA

c.

16 mA

d.

4 mA

Discuss
Answer: (d).4 mA
Q835.
The two outputs of RS flip-flop are

a.

always low

b.

always high

c.

either low or high

d.

always complementary

Discuss
Answer: (d).always complementary
Q836.
The sum of 1110101₂ and 11011₂ in decimal form will be

a.

65

b.

75

c.

85

d.

95

Discuss
Answer: (c).85
Q837.
Binary 1111 when added to binary 11111, the result in binary is

a.

111111

b.

1111

c.

1000

d.

10000

Discuss
Answer: (d).10000
Q838.
In the 2's complement Adder-Subtractor

a.

sign magnitude numbers represent negative numbers

b.

the sign magnitude numbers have "1" as leading bit

c.

the sign magnitude numbers have '0' as leading bit

d.

2's complement represents positive numbers

Discuss
Answer: (c).the sign magnitude numbers have '0' as leading bit
Q839.
The widely used binary multiplication method is

a.

repeated addition

b.

add and shift

c.

shift and add

d.

any of the above

Discuss
Answer: (b).add and shift
Q840.
Which of the following logic family is fastest of all?

a.

TTL

b.

RTL

c.

DCTL

d.

ECL

Discuss
Answer: (d).ECL
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