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 24 of 41

Discover more Topics under Electronics and Communication Engineering

Q231.
The noise figure of klystron amplifier is about

a.

25 dB

b.

3 dB

c.

zero

d.

1 dB

Discuss
Answer: (a).25 dB
Q232.
Which one of the following is true for EM wave propagation through rectangular waveguide of cross-section 2a x a

a.

critical wavelength for TE₁₀ mode is the same as that for TEβ‚€β‚‚ mode

b.

critical wavelength for TE₁₀ mode is one half of that for TE₁₀ mode

c.

critical wavelength for TE₁₀ mode is the same as that for TM₁₀ mode

d.

critical wavelength for TE₁₀ mode is double that for TE₀₁ mode

Discuss
Answer: (c).critical wavelength for TE₁₀ mode is the same as that for TM₁₀ mode
Q233.
In 8 cavity magnetron the Ο€ mode corresponds to a total phase shift equal to

a.

± 8 Ο€ radians around the periphery

b.

± 4 Ο€ radians around the periphery

c.

± 2 Ο€ radians around the periphery

d.

± 16 Ο€ radians around the periphery

Discuss
Answer: (a).± 8 Ο€ radians around the periphery
Q234.
Satellite communication systems use the frequency band

a.

10 to 20 MHz

b.

50 to 70 MHz

c.

3 to 6 GHz

d.

100 to 120 GHz

Discuss
Answer: (c).3 to 6 GHz
Q235.
The characteristic impedance of a cable is about

a.

300 Ξ©

b.

50 Ξ©

c.

5 Ξ©

d.

2 Ξ©

Discuss
Answer: (b).50 Ξ©
Q236.
A TR (transmitter receiver) tube has

a.

low loss for low power signals and high

b.

high loss for low power signals and low loss for high level signal

c.

low loss for both low level and high level signals

d.

high loss for both low level and high level signals

Discuss
Answer: (a).low loss for low power signals and high
Q237.
A microwave connector should have high SWR.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q238.
Assertion (A): A small section of high impedance line is equivalent to a series inductance.

Reason (R): A small section of a low impedance line is equivalent to a series 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: (c).A is correct but R is wrong
Q239.
Assertion (A): Bolometer is frequently used in microwave power measurement.

Reason (R): In a bolometer the input microwave power causes a change in 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
Q240.
The radiation resistance of a doublet antenna of length dl is proportional to

a.

Ξ΄ l

b.

(Ξ΄ l)²

c.

(Ξ΄ l)³

d.

(δ l)⁡

Discuss
Answer: (b).(Ξ΄ l)²
Page 24 of 41