Welcome to the Microcontroller MCQs Page

Dive deep into the fascinating world of Microcontroller with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Microcontroller, a crucial aspect of Computer Architecture. In this section, you will encounter a diverse range of MCQs that cover various aspects of Microcontroller, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Computer Architecture.

Check out the MCQs below to embark on an enriching journey through Microcontroller. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Computer Architecture.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Microcontroller. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Microcontroller MCQs | Page 13 of 36

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8051 Microcontroller

Q121.

Why do we need to apply the concept of signal conditioning to a sensor?

in order to convert it into a desirable form of energy

for testing

for sensing something

all of the mentioned

Discuss

Answer: (a).in order to convert it into a desirable form of energy

Q122.

Which of the following is correct about LM35 based sensors?

its output voltage is directly proportional to the Celsius scale

its output voltage is directly proportional to the Fahrenheit scale

none of the mentioned

all of the mentioned

Discuss

Answer: (a).its output voltage is directly proportional to the Celsius scale

Q123.

What is the difference between the LM34 and the LM35 based sensors?

one requires external calibration while other does not

one has output voltage proportional to the Celsius scale while other has to the Fahrenheit scale

one is fast other is slow

all of the mentioned

Discuss

Answer: (b).one has output voltage proportional to the Celsius scale while other has to the Fahrenheit scale

Q124.

Every transducer must be connected with the signal conditioning circuit?

true

false

can’t say

depends on the conditions

Discuss

Answer: (a).true

Q125.

LM35 provides _______ V for each degree count?

0.1

0.001

Discuss

Answer: (c).0.001

Q126.

Why for the 8 bit analog input we select Vref as the 2.56V?

to obtain each degree count as the 2.56V

to get 2.56V at the output

to obtain each degree count as the 10mV

to get 10mV as the output

Discuss

Answer: (c).to obtain each degree count as the 10mV

Q127.

What is the temperature for LM35 sensor if the analog output is 0011 1001?

Discuss

Answer: (c).57

Q128.

In an external hardware, their are how many pins available for the LM35 and the LM34 based sensors?

Discuss

Answer: (b).3

Q129.

Do LM34 and LM35 based sensors have linear output?

yes

depends on the conditions

can’t say

Discuss

Answer: (a).yes

Q130.

8255 is a ____ pin IC.

Discuss

Answer: (c).40

Page 13 of 36

Welcome to the Microcontroller MCQs Page

Microcontroller MCQs | Page 13 of 36

Explore more Topics under Computer Architecture

Computer Architecture Basics

Digital Logic Circuits

Digital Components

Digital Data Representation

Microoperations

Basic Computer Organization

Pipeline and Vector Processing

Computer Arithmetic

Input Output Organization

Memory Organization

Multiprocessors

8085 Microprocessor

8051 Microcontroller

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