Ch 06 - Telecommunications

Front

This is NOT true of optical fibers: They reduce background noise, The signal fads over long distances, They're made from flexible glass, They're better for high speed transmission of information

Back

The signal fads over long distances

Front

Earth stations are communication satellites that remain in the same position above the earth.

Back

FALSE

Front

What do Communication Satellites do? Options: Relay messages from one location to another, Always remain above the same part of the earth, Orbit the earth, All of these

Back

Relay messages from one location to another, Always remain above the same part of the earth, Orbit the earth.

Front

When you select a TV channel, you are actually tuning in a TV station frequency.

Back

True

Front

This statement about digital TV is NOT true: Know as HDTV

Back

Know as HDTV

Front

The telephone was the first devise to produce mass communication.

Back

False

Front

Telecommunication means

Back

Communication over long distances

Front

A patent makes sure that no one copies an invented object or process.

Back

True

Front

Microwaves are very short wave that have been created by a magnetic field.

Back

True

Front

Cellular phones use radio waves to transmit conversations and information.

Back

True