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Communication System Tutorial 1

Authored by Anusuya PSGCT

Computers

University

Used 5+ times

Communication System Tutorial 1
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A message signal whose peak amplitude is 5V amplitude modulates a carrier wave whose peak amplitude is 10V. Find the Vmax value

15V

10V

1.5V

5V

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 

What is the total power supplied by an AM transmitter with a carrier power of 2500 W and modulation of 77 percent?

300W

3000W

3241.125W

3256.25W

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A carrier wave of 1500V is amplitude modulated by an audio signal to produce 40% AM. What is the amplitude of the side band?

300V

150V

3 KV

1.5KV

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The process of SUPERIMPOSING MESSAGE SIGNAL WITH CARRIER WAVE IS KNOWN AS:

DEMODULATION

ATTENUATION

MODULATION

DETECTION

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the function of the receiver?

Converts signal into electric form

Reducing noise during transmission

Operating on the received signal

Converting the signal into a useful form

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The frequency range of 300 khz to 3000 khz is known as

Low frequency

medium frequency

high frequency

very high frequency

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The ______________________ signal gets changed during modulation process?

carrier

message

input

moulating

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