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 16 of 41

Discover more Topics under Electronics and Communication Engineering

Q151.
Most electromagnetic transmission in rectangular wave-guide uses

a.

TE₁₀ mode

b.

TE₀₁ mode

c.

TE₂₀ mode

d.

TE₁₁ mode

Discuss
Answer: (a).TE₁₀ mode
Q152.
Loading of a line means

a.

increasing inductance of line

b.

increasing distributed inductance of line

c.

decreasing distributed inductance of line

d.

decreasing inductance of line

Discuss
Answer: (b).increasing distributed inductance of line
Q153.
The frequency of oscillations obtained from a reflex klystron depends mainly on

a.

resonant frequency of cavity

b.

repeller voltage

c.

voltage of focussing electrode

d.

characteristics of cathode

Discuss
Answer: (a).resonant frequency of cavity
Q154.
The main advantage of TWT over klystron is

a.

higher bandwidth

b.

higher gain

c.

higher frequency

d.

higher output

Discuss
Answer: (a).higher bandwidth
Q155.
In a TWT the phase velocity of the axial component of the field on the slow wave structure is kept

a.

equal to velocity of electron

b.

slightly less than velocity of electron

c.

slightly more than velocity of electron

d.

equal to velocity of light in free space

Discuss
Answer: (a).equal to velocity of electron
Q156.
Assertion (A): Two equal and opposite travelling waves result in a standing wave.

Reason (R): The ratio of maximum to minimum value of a standing wave is called SWR.

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
Q157.
When a wave reaches an open circuit

a.

the voltage at termination is doubled the incident voltage

b.

the current at termination is doubled the incident voltage

c.

the voltage at termination is zero

d.

both V and I at termination are doubled the incident voltage and current

Discuss
Answer: (a).the voltage at termination is doubled the incident voltage
Q158.
Assertion (A): In circular waveguide the attenuation of TE01 mode decreases as the operating frequency increases.

Reason (R): The wall currents in a circular waveguide in TEQ1 mode are completely circumferential.

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
Q159.
Consider the following statements

1. Usable bandwidth of ridge wave guide is more than that of rectangular waveguide.
2. For a given value of TM₁₀ cutoff frequency the cross section of ridge wave guide is lesser that that of rect angular waveguide.
3. Ridge wave guide has higher conductor losser than a rectangular waveguide.
4. Ridge guide has higher conductor losser than a rectangular waveguide.

Which of the above statements are correct?

a.

1 and 2 only

b.

1, 2 and 3 only

c.

2 and 3 only

d.

All

Discuss
Answer: (b).1, 2 and 3 only
Q160.
Directive gain of elementary doublet is

a.

100

b.

10

c.

1.5

d.

0.5

Discuss
Answer: (c).1.5
Page 16 of 41