Materials and Components MCQs

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

Materials and Components MCQs | Page 12 of 44

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Q111.
When subjected to alternating stresses, an insulating material is characterised by complex dielectric constant ∈'r - j∈"r . In such materials, the dielectric losses under alternating stress is proportional

a.

∈"r

b.

both ∈'r and ∈"r

c.

∈'r

d.

(∈"r)2

Discuss
Answer: (a).∈"r
Q112.
In carbon resistor colour code, the third band is red. It indicates

a.

two zeros

b.

three zeros

c.

multiplier is 0.01

d.

multiplier is 0.1

Discuss
Answer: (a).two zeros
Q113.
Rochelle salt is a ferroelectric material.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q114.
Paramagnetic materials have permanent magnetic dipoles but interaction between neighbouring dipoles is negligible.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q115.
Assertion (A): If difference between static and optical dielectric constant is high, the mechanical compressiblity of that material is also high.
Reason (R): For soft ions, ionic polarization per unit field is higher than that of hard ions.

a.

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

b.

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

c.

A is true but R is false

d.

A is false but R is true

Discuss
Answer: (a).Both A and R are true and R is correct explanation of A
Q116.
In crystalline solids, atoms are stacked in a regular manner.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q117.
The temperature below which certain materials are antiferromagnetic and above which they are paramagnetic is called

a.

Weiss temperature

b.

Curie temperature

c.

Neel temperature

d.

None of the above

Discuss
Answer: (c).Neel temperature
Q118.
In metals, the average drift velocity of electron per unit field is called mobility.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q119.
Ferrites have

a.

a low copper loss

b.

low eddy current loss

c.

low resistivity

d.

higher specific gravity compared to iron

Discuss
Answer: (b).low eddy current loss
Q120.
In intrinsic semiconductors, the number of free electrons is equal to the number of mobile holes.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
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