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Welcome to the 8051 Microcontroller MCQs Page

Dive deep into the fascinating world of 8051 Microcontroller with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of 8051 Microcontroller, a crucial aspect of Computer Architecture. In this section, you will encounter a diverse range of MCQs that cover various aspects of 8051 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.

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Check out the MCQs below to embark on an enriching journey through 8051 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 8051 Microcontroller. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

8051 Microcontroller MCQs | Page 13 of 14

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Q121.
Name the read only registers are present in the DS12887?
Discuss
Answer: (c).register C, register D
Q122.
What is the supply that a DS12887 consumes even when the power is switched off?
Discuss
Answer: (a).Lithium ion battery
Q123.
What is the principle on which electromagnetic relays operate?
Discuss
Answer: (a).electromagnetic induction
Discuss
Answer: (c).Double pole, double throw
Discuss
Answer: (b).for increasing the current limit in the relays
Discuss
Answer: (b).they need less current to be energised
Discuss
Answer: (c).it is a device that can be used as an electromagnetic relay without a driver
Discuss
Answer: (a).by controlling its switching rate
Q129.
Which of the following can be a unit for torque?
Discuss
Answer: (b).ounce-inch
Q130.
The RPM rating given for the DC motor is for?
Discuss
Answer: (a).no-loaded

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