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 25 of 41

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Q241.
If air pressure in a rectangular waveguide is increased the maximum power handling capacity

a.

is decreased

b.

is increased

c.

remains the same

d.

may increase or decrease depending on pressure

Discuss
Answer: (b).is increased
Q242.
A directional coupler is used to determine

a.

ฯv

b.

ฯv and VSWR

c.

L and C

d.

wave velocity

Discuss
Answer: (b).ฯv and VSWR
Q243.
For air filled circular waveguides

a.

the attenuation due to imperfect conducting walls is negligible

b.

the attenuation due to imperfect dielectric is negligible

c.

both the attenuation i.e. due to imperfect conducting walls and due to imperfect dielectric are significant

d.

the total attenuation is almost zero

Discuss
Answer: (b).the attenuation due to imperfect dielectric is negligible
Q244.
A short circuited stub is preferred to an open circuited stub because an open circuited stub

a.

is more difficult to fabricate and construct

b.

is made of transmission line of different Z0

c.

is liable to radiate

d.

is incapable of giving full range of reactance

Discuss
Answer: (c).is liable to radiate
Q245.
If the peak transmitted power in a radar is increased by a factor 81, the maximum range is increased by a factor of

a.

3

b.

9

c.

27

d.

81

Discuss
Answer: (a).3
Q246.
Radar is essentially an echo ranging system

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q247.
In the given figure power meters at A and B indicate 1 mW and 110 ฮผW respectively. VSWR of line is

a.

1.5

b.

2

c.

2.5

d.

3

Discuss
Answer: (b).2
Q248.
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
Q249.
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
Q250.
If wavelength in free space is ฮปโ‚€ wavelength in insulator ฮป, ฮผr is relative permittivity or insulator and โˆˆr is relative permittivity or insulator, then

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
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