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.
If 'a' is the width of rectangular wave guide and 'λ' is the wave length, then

a.

a > λ/4

b.

a > λ/2

c.

a < λ/4

d.

a < λ/2

Discuss
Answer: (b).a > λ/2
Q182.
A parametric amplifier uses

a.

non linear resistance

b.

non linear reactance

c.

either (a) or (b)

d.

neither (a) nor (b)

Discuss
Answer: (b).non linear reactance
Q183.
Assertion (A): Impatt diode can be used in both amplifiers and oscillators.

Reason (R): Impatt diode has a low 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
Q184.
Which one of the following can be used for amplification of microwave energy?

a.

TWT

b.

Magnetron

c.

Reflex klystron

d.

Gunn diode

Discuss
Answer: (a).TWT
Q185.
In the given figure power meters at A and B indicate 1 mW and 110 μW respectively. VSWR of line is

a.

1.5

b.

2

c.

2.5

d.

3

Discuss
Answer: (b).2
Q186.
Which of the following are true for magic tee in the given figure select the answer as per given codes

1. S13 = S23
2. S14 = S24
3. S12 = 0
4. S34 = 0

a.

1, 2 and 3

b.

1, 2 and 4

c.

2, 3 and 4

d.

1, 3 and 4

Discuss
Answer: (c).2, 3 and 4
Q187.
The arrangement in the given figure is a hybid T. If 100 mW fed at port 1, the power reflected back at port 1 is

a.

0

b.

25 mW

c.

50 mW

d.

100 mW

Discuss
Answer: (c).50 mW
Q188.
If wavelength in free space is λ₀ wavelength in insulator λ, μr is relative permittivity or insulator and ∈r is relative permittivity or insulator, then

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q189.
In the given figure the circuits for input impedance of a microwave device with output ports match terminated. The device is

a.

E plane tee

b.

H plane tee

c.

magic tee

d.

hybrid ring

Discuss
Answer: (d).hybrid ring
Q190.
The scattering matrix of magic tee is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
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