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 39 of 41

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Q381.
A line of length less than Ξ»/4 and open circuited at far end behaves as

a.

inductance L

b.

capacitance C

c.

L and C in series

d.

L and C in parallel

Discuss
Answer: (b).capacitance C
Q382.
The beam of a radar should be

a.

very narrow

b.

very wide

c.

neither too narrow nor very wide

d.

either (b) or (c)

Discuss
Answer: (a).very narrow
Q383.
TE₁₀ mode of propagation of electromagnetic energy in waveguides can be thought of as

a.

three TEM waves travelling along length of wave-guide

b.

One TEM wave travelling along length of wave guide and one TEM wave propagation in the transverse plane

c.

One TEM wave travelling along the length of wave guide and two TEM waves

d.

none of the above

Discuss
Answer: (c).One TEM wave travelling along the length of wave guide and two TEM waves
Q384.
Consider the following statement:
SWR of a transmission line is infinite when the load is

1. a short circuit
2. a complex impedance
3. an open circuit
4. a pure reactance

Which of the above statements are correct?

a.

1 and 3 only

b.

1, 2, 3

c.

2, 3, 4

d.

1, 2, 4

Discuss
Answer: (a).1 and 3 only
Q385.
In a reflex klystron the output frequency is determined primarily by resonant frequency of cavity.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q386.
In TE₁₀ mode the largest electric field in a rectangular wave guide, occurs

a.

along centre line of broad wall (i.e. x = a/2)

b.

along the broad wall (i.e. x = 0 and x = a)

c.

either (a) or (b)

d.

neither (a) nor (b)

Discuss
Answer: (a).along centre line of broad wall (i.e. x = a/2)
Q387.
Which modes of circular wave guides have circular symmetry?

a.

TE₁₁

b.

TE₁₁ and TE₂₁

c.

TE₀₁

d.

TE₀₁ and TM₀₁

Discuss
Answer: (d).TE₀₁ and TM₀₁
Q388.
In a microwave resistor the wall thickness is made as small as possible to

a.

have high value of R

b.

have low value of R

c.

minimize capacitive effect

d.

reduce inductance

Discuss
Answer: (c).minimize capacitive effect
Q389.
In a klystron amplifier the transit time of electron passing the gap in the cavity should be

a.

less than one cycle

b.

less than half cycle

c.

less than quarter cycle

d.

more than quarter cycle

Discuss
Answer: (c).less than quarter cycle
Q390.
In a cable with ∈r = 4, the wave velocity is

a.

3 x 10⁸ m/s

b.

0.75 x 10⁸ m/s

c.

1.5 x 10⁸ m/s

d.

10⁸ m/s

Discuss
Answer: (c).1.5 x 10⁸ m/s
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