Site MapHelpFeedbackMultiple Choice Quiz
Multiple Choice Quiz
(See related pages)

1
The process of phase-modulating a carrier with binary data is called
A)frequency-shift keying
B)multiplexing
C)carrier phasing
D)phase-shift keying
2
Any modulation process produces
A)carriers
B)sidebands
C)noise
D)amplification
3
The ratio of the frequency deviation to the modulating frequency is known as the
A)deviation factor
B)frequency-shift keying
C)modulation index
D)ratio of modulation
4
The equation that expresses the phase angle in terms of the sine wave modulating signal can be solved by using a complex mathematical process known as
A)Fourier analysis
B)Bessel functions
C)superposition analysis
D)Thevenin’s Theorem
5
The primary purpose of narrowband FM is
A)to be able to use frequencies above 108 MHz
B)reduce channel noise
C)to conserve spectrum space
D)to be able to use frequencies below 88 MHz
6
The higher the modulation index in FM
A)the greater the number of sidebands and the wider the bandwidth
B)the greater the number of sidebands and the narrower the bandwidth
C)the fewer the number of sidebands and the wider the bandwidth
D)the fewer the number of sidebands and the narrower the bandwidth
7
Interference generated by lightning, motors, automotive ignition systems, and any power line switching that produces transient signals is referred to as
A)magnetic radiation
B)stray reactance
C)induced signals
D)noise
8
One of the primary benefits of FM over AM is its
A)line of sight transmission
B)superior noise immunity
C)lower signal-to-noise ratio
D)smaller bandwidth
9
A technique that helps offset high-frequency noise interference by passing a modulating signal through a simple network that amplifies high-frequency components more than the low-frequency components is called
A)preamplification
B)deemphasis
C)preemphasis
D)crossover boost
10
Which of the following is not an advantage of FM over AM?
A)noise immunity
B)capture effect
C)circuit simplicity
D)transmitter efficiency





To learn more about the book this website supports, please visit its Information Center.
(c)2008 Tata McGraw-Hill
Any use is subject to the Terms of Use and Privacy Policy.
Tata McGraw-Hill is one of the many fine businesses ofThe McGraw-Hill Companies.


Frenzel Louis E.Online Learning Center

Home > Chapter 5 > Multiple Choice Quiz