Microprocessors MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Microprocessors, 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 Microprocessors 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 Microprocessors mcq questions that explore various aspects of Microprocessors problems. Each MCQ is crafted to challenge your understanding of Microprocessors 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 Microprocessors 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 Microprocessors. 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 Microprocessors knowledge to the test? Let's get started with our carefully curated MCQs!

Microprocessors MCQs | Page 31 of 59

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Q301.
The instruction MOV M, r in 8085

a.

causes content of register r to be moved to memory location whose address is in register H, L and uses register indirect addressing mode

b.

causes the content of memory location whose address is in register H, L to move to register r and uses register indirect addressing mode

c.

causes the content of register r to be moved to memory location whose address is in register H, L and uses immediate addressing mode

d.

causes the content of memory location whose address is in register H, L to move to register r and uses immediate addressing mode

Discuss
Answer: (a).causes content of register r to be moved to memory location whose address is in register H, L and uses register indirect addressing mode
Q302.
Which of the following characters is allowed in variable names in C?

a.

comma

b.

dot

c.

blank

d.

underscore

Discuss
Answer: (d).underscore
Q303.
The standard FORTRAN exponential form of decimal number - 0.000000023 is

a.

2.3 E - 8

b.

-2.3 E - 8

c.

2.3 E - 7

d.

-2.3 E - 7

Discuss
Answer: (b).-2.3 E - 8
Q304.
In 8085 the term 'absolute addressing' means

a.

Direct addressing

b.

Immediate addressing

c.

Register addressing

d.

Register indirect addressing

Discuss
Answer: (a).Direct addressing
Q305.
The range of floating point numbers in Java is

a.

1.4 E - 45 to 3.4 E + 38

b.

3.4 E - 45 to 1.4 E + 38

c.

1.4 E - 38 to 3.4 E + 45

d.

3.4 E - 38 to 1.4 E + 45

Discuss
Answer: (a).1.4 E - 45 to 3.4 E + 38
Q306.
What does the operator ( ) mean in C?

a.

Function expression

b.

Array expression

c.

Structure operator

d.

Increment / Decrement

Discuss
Answer: (a).Function expression
Q307.
Which of the following is a valid FORTRAN assignment statement?

a.

10 = N

b.

X + 2.1 = 5.6

c.

A = B

d.

A = B = 1

Discuss
Answer: (c).A = B
Q308.
Which of the following statements is written in plain English in 8085?

a.

Data definition

b.

Assignment

c.

Conditional

d.

Repetitive

Discuss
Answer: (a).Data definition
Q309.
Microprocessor 386SX is a 16/32 bit microprocessor. It has

a.

16 bit registers and 32 bit data bus

b.

16 bit registers and 16 bit data bus

c.

32 bit registers and 32 bit data bus

d.

32 bit register and 16 bit data bus

Discuss
Answer: (d).32 bit register and 16 bit data bus
Q310.
Assertion (A): An instruction cycle consists of fetch and execute cycles.

Reason (R): Fetch cycle has one machine cycle but execute cycle may have one or more machine cycles depending on length of instruction.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is correct R is wrong

d.

A is wrong R is correct

Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
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