Communication Systems MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Communication Systems, 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 Communication Systems 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 Communication Systems mcq questions that explore various aspects of Communication Systems problems. Each MCQ is crafted to challenge your understanding of Communication Systems 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 Communication Systems 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 Communication Systems. 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 Communication Systems knowledge to the test? Let's get started with our carefully curated MCQs!

Communication Systems MCQs | Page 76 of 120

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Q751.
The HV and other voltage supplies for a TV receiver are obtained from IHVT. The full name for this device is

a.

Internal high voltage transformer

b.

Integrated high voltage transformer

c.

Instant high voltage transformer

d.

Interleaved high voltage transformer

Discuss
Answer: (b).Integrated high voltage transformer
Q752.
The main systems used for generation of SSB are

a.

filter method

b.

phase cancellation method

c.

third method

d.

all of the above

Discuss
Answer: (d).all of the above
Q753.
An antenna operates effectively when its dimensions are

a.

of the order of magnitude of wavelength to be transmitted

b.

very small than the magnitude of wavelength to be transmitted

c.

very large than the magnitude of wavelength to be transmitted

d.

either (a) or (b)

Discuss
Answer: (a).of the order of magnitude of wavelength to be transmitted
Q754.
The mobile unit of a mobile telephone is generally in

a.

vehicles

b.

pocket

c.

office

d.

vehicle or pocket

Discuss
Answer: (a).vehicles
Q755.
Assertion (A): Water waves are longitudinal but EM waves are transverse

Reason (R): In an EM wave electric field, magnetic field and propagation are mutually perpendicular.

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
Q756.
Some multiplexing arrangements for telephone system are

1. Space multiplexing
2. Time division multiplexing
3. Frequency division multiplexing

Which of the above allow transmission of many independent signals over a single channel?

a.

1 only

b.

2 and 3 only

c.

1, 2, 3

d.

1 and 3 only

Discuss
Answer: (b).2 and 3 only
Q757.
Industrial noise has the frequency range of

a.

1 to 100 Hz

b.

200 to 5000 Hz

c.

above 200 MHz

d.

1 to 600 MHz

Discuss
Answer: (d).1 to 600 MHz
Q758.
Thermal noise Power is

a.

proportional to bandwidth (B)

b.

∝ B

c.

∝ 1/B²

d.

∝B²

Discuss
Answer: (a).proportional to bandwidth (B)
Q759.
The characteristic impedance of coaxial cable is about

a.

1000 ohm

b.

500 ohm

c.

250 ohm

d.

75 ohm

Discuss
Answer: (d).75 ohm
Q760.
The diameter and thickness of CD are

a.

6 cm and 1.2 mm

b.

6 cm and 0.6 mm

c.

12 cm and 0.6 mm

d.

12 cm and 1.2 mm

Discuss
Answer: (c).12 cm and 0.6 mm
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