Microwave Communication MCQs

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

Microwave Communication MCQs | Page 19 of 41

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Q181.
Assertion (A): Impedance matching can be done by using stubs.

Reason (R): A double stub is used for impedance matching when frequency of signal varies.

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 but R is wrong

d.

A is wrong but R is correct

Discuss
Answer: (a).Both A and R are correct and R is correct explanation of A
Q182.
Read the following statements about TWT

1. It uses thermionic emission.
2. It uses an attenuater.
3. It is inherently a resonant device.
4. It has broad bandwidth.

Which of the above are correct?

a.

1, 2, 3 and 4

b.

1, 2 and 3

c.

1, 3 and 4

d.

1, 2 and 4

Discuss
Answer: (d).1, 2 and 4
Q183.
If a line having Z₀ = 300 ∠ 0 W is short circuited at far end, VSWR is

a.

0

b.

1

c.

∞

d.

2

Discuss
Answer: (c).∞
Q184.
A klystron amplifier generally uses Pierce gun

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q185.
If a short line is terminated in characteristic impedance it behaves as an infinite line.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q186.
Ga As exhibits negative differential mobility

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q187.
Consider the following statements:

1. Bunching of electrons occurs in two cavity klystron amplifier.
2. Bunching of electrons occurs in multi cavity klystron amplifier.
3. Bunching of electrons occurs in reflex cavity klystron amplifier.

Which of the above statements are correct?

a.

1, 2, and only

b.

1, 2 and 3 only

c.

1 and 3 only

d.

2 and 3 only

Discuss
Answer: (b).1, 2 and 3 only
Q188.
Assertion (A): For high frequency lines inductive reactance is very high as compared to ac resistance.

Reason (R): Due to skin effect ac resistance of line is higher than dc resistance.

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 but R is wrong

d.

A is wrong but R is correct

Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q189.
Consider the following applications

1. Switch
2. Attenuator
3. Phase shifter
4. Oscillator

In which of the above can a PIN diode be used?

a.

1 2 3 and 4

b.

1 2 and 3 only

c.

1 and 2 only

d.

2, 3 and 4 only

Discuss
Answer: (b).1 2 and 3 only
Q190.
Out of modes TE₂₀ and TE₃₀ of propagation of electromagnetic engery

a.

both have the same cutoff frequency

b.

TE₂₀ has lower cut off frequency as compared to TE₃₀

c.

TE₃₀ has lower cutoff frequency as compared to TE₂₀

d.

either (a) or (c)

Discuss
Answer: (b).TE₂₀ has lower cut off frequency as compared to TE₃₀
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