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 29 of 59

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Q281.
The operator precedence in Java is in the order

a.

arithmetic operation, increment and decrement operation, comprassion, logical operation and assignment operation.

b.

increment and decrement operation, arithmetic operation, comparison, logical operation and assignment operation.

c.

comparison, arithmetic operation, increment and decrement operation, logical operation and assignment operation.

d.

arithmetic operation, comparison operation, increment and decrement operation, logical operation and assignment operation.

Discuss
Answer: (b).increment and decrement operation, arithmetic operation, comparison, logical operation and assignment operation.
Q282.
A colour monitor usign 16 bits at a resolution of 600 x 400 pixels needs a memory of

a.

240000 B

b.

9600 B

c.

6400 B

d.

480000 B

Discuss
Answer: (d).480000 B
Q283.
Read the following statements as regards register pairs in microprocessor 8085

1. B represents B, C pair with B as high order register and C as low order register.
2. D represents D, E pair with D as high order register and E as low order register.
3. H represents H, L pair with H as high order register and L as low order register.

Which of the above statements are correct?

a.

All

b.

1 and 3

c.

1 and 2

d.

2 and 3 only

Discuss
Answer: (a).All
Q284.
The 8085 instruction 'PUSH PSW' belongs to the group

a.

data transfer

b.

arithmetic

c.

logic

d.

none of the above

Discuss
Answer: (d).none of the above
Q285.
Assertion (A): In C it is possible for functions to call themselves.

Reason (R): C makes use of 'Pointers'.

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
Q286.
In IC 74181 a sum greater than 15 leads to low carry out.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q287.
Assertion (A): In 8085, the zero flag is set when ALU operation results in 0. If the result is not 0, this flag is reset.

Reason (R): In 8085 the S flag is set when the contents of accumulator become negative during execution of an 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: (d).A is wrong R is correct
Q288.
The operations which occur most frequently in a computer are

a.

fetch

b.

execute

c.

both (a) and (b)

d.

none of the above

Discuss
Answer: (c).both (a) and (b)
Q289.
Assertion (A): A dynamic RAM chip has much smaller cell than a static RAM chip.

Reason (R): In dynamic RAM one bit of information is stored as the charge on a capacitor.

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: (a).Both A and R are correct and R is correct explanation of A
Q290.
Which of the following produces very wide drifts in clock frequency?

a.

Crystal

b.

RC circuit

c.

LC resonant circuit

d.

Crystal and RC circuit

Discuss
Answer: (b).RC circuit
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