Site MapHelpFeedbackTrue or False
True or False
(See related pages)

1
A multi-conductor cable must be used in order to handle multiple signals simultaneously by using a technique known as multiplexing.
A)True
B)False
2
Multiple input signals can be combined by a multiplexer into a single composite signal and then transmitted over a communication medium.
A)True
B)False
3
The two most common types of multiplexing are frequency-division multiplexing and time-division multiplexing.
A)True
B)False
4
Satirical multiplexing is the term used to describe the transmission of multiple wireless signals on a common frequency in such a way that they do not interfere with one another.
A)True
B)False
5
In frequency-division multiplexing, multiple signals share the bandwidth of a common communication channel.
A)True
B)False
6
In an FDM system, the carrier for each modulator is on a different frequency these carriers are referred to as subcarriers.
A)True
B)False
7
The FDM process divides up the bandwidth of the single channel into smaller, equally spaced channels, each capable of carrying information in sidebands.
A)True
B)False
8
A thermistor’s resistance varies inversely with temperature.
A)True
B)False
9
In a voltage-controlled oscillator, varying direct or alternating current changes the amplitude of the oscillator.
A)True
B)False
10
Most VCOs are astable multivibrators whose frequency is controlled by input from signal conditioning circuits.
A)True
B)False
11
PCM video systems make the transmission of graphic images over great distances possible.
A)True
B)False
12
The connection between a telephone company’s central office and the subscriber’s telephone still use analog signals.
A)True
B)False
13
Duplexing is the method by which one-way communications are handled.
A)True
B)False
14
Time-division duplexing means that signals are transmitted simultaneously on a single channel by interleaving them in different time slots.
A)True
B)False
15
Multiplexing is the process of simultaneously transmitting two or more individual signals over a single communication channel.
A)True
B)False







Frenzel Louis E.Online Learning Center

Home > Chapter 10 > True or False