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 4 of 41

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Q31.
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
Q32.
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
Q33.
The scattering matrix of magic tee is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q34.
Guide wavelength (λg), cutoff wavelength (λc) and free space wavelength (λ₀) of a waveguide are related as

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q35.
Consider the following statements about directional coupler shown in the figure:

1. Ports 1 and 2 are decouple
2. Ports 3 and 4 are decoupled
3. Pots 1 and 3 are decoupled
4. Ports 1 and 4 are decoupled

Which of the above statements are correct?

a.

1 and 2 only

b.

3 and 4 only

c.

1, 2 and 3

d.

2, 3 and 4

Discuss
Answer: (a).1 and 2 only
Q36.
Two identical hybrid tees are joined as shown in the given figure. If 16 mW power is fed into port 1, the power output at ports 2 , 3, 1', 2', 3' respectively is

a.

8, 4, 2, 2, 0 mW

b.

0, 8, 4, 4, 0 mW

c.

0, 8, 2, 2, mW

d.

8, 2, 4, 2, 0 mW

Discuss
Answer: (b).0, 8, 4, 4, 0 mW
Q37.
If QL is loaded Q, QE is external Q and QU is unloaded Q of a microwave resonator, then

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q38.
Which of the following lines is non-radiating?

a.

Open two wire

b.

Coaxial

c.

Both

d.

None of the above

Discuss
Answer: (b).Coaxial
Q39.
Assertion (A): The impedance of a matched load is equal to characteristic impedance of line.

Reason (R): A matched termination absorbs all the power incident on it.

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
Q40.
Skin effect is more pronounced at high frequencies.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
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