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Multiple Choice Quiz
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1

The process of changing one form of energy into another is called
A)transformation
B)transduction
C)transformatting
D)transition
2

Frequencies are mostly commonly measured in
A)hertz
B)rads
C)watts
D)oscillations
3

When an audio signal is superimposed or "piggybacked" upon a radio wave the process is called
A)oscillation
B)conduction
C)modulation
D)transmission
4

In digital technology each element of the audio or video signal is
A)superimposed upon the carrier
B)transduced into its digital equivalent by means of a binary code
C)converted into sine waves
D)scanned
5

The footprint or image of an oscillation we use to visualize the presence of a radio signal is called its
A)frequency
B)modulation
C)waveform
6

The term used to describe the height or depth of a waveform is called its:
A)frequency
B)amplitude
C)wavelength
7

Generally speaking, the ________ frequency response of the audio system the __________ the fidelity.
A)lower / higher
B)lower / broader
C)wider / better
D)wider / lower
8

Dynamic microphones use a __________ as a transducer
A)condenser
B)electret
C)diaphragm and electromagnets
D)ribbon
9

Professional audio tape machines capable of recording as many as 32 audio tracks on one tape are called
A)open reel recorders
B)cassette recorders
C)DAT recorders
D)multitrack recorders
10

We can record digitally because of
A)amplitude modulation
B)control tracks
C)pulse code modulation
D)multitrack recorders
11

MP3 recordings use data compression technology to reduce the size of the audio file.
A)true
B)false
12

Television's ability to transmit images is based on the technology of scanning.
A)true
B)false
13

High-definition television can deliver digital pictures of varying resolutions with a maximum resolution of approximately
A)400 scanning lines
B)600 scanning lines
C)800 scanning lines
D)1100 scanning lines
14

American televisions using the current analog NTSC standard scan at
A)425 lines
B)525 lines
C)625 lines
D)725 lines
15

Closed captioning uses the ______________ of the television picture for sending information
A)vertical blanking interval
B)second field
C)even scanning lines
D)none of the above
16

"Chip" cameras use ________________ to convert the light image into electronic signals.
A)deflection magnets
B)electron guns
C)charged-coupled devices
D)target plates
17

A(n) ______________ is a device that boosts an electrical signal.
A)equalizer
B)amplifier
C)fader
D)transmitter
18

Audio boards allow operators to accomplish all of the following except;
A)select inputs
B)increase or decrease individual signal levels
C)combine signals together
D)store signals for playback
19

The video device that allows the director to mix video signals is a(n)
A)editor
B)router
C)switcher
D)transmitter
20

The signal produced by a broadcasting station on its assigned frequency is called a:
A)modulation waveform
B)carrier wave
C)wavelength
21

A common use of the radio sideband technology is FM multiplexing.
A)true
B)false
22

Television signals allocated to this band provide better signal area coverage with lower power:
A)the VHF band
B)the UHF band
C)the SHF band
23

In FM broadcasting, the class of radio station is defined by its effective radiated power.
A)true
B)false
24

Communication satellites operate in the
A)very-high frequency band
B)ultra-high frequency band
C)super-high frequency band
D)extremely-high frequency band
25

Satellites that are placed in a geosynchronous orbit
A)are located about 22,000 miles above the earth
B)are located in an orbit around the equator
C)rotate in orbit at the same rate as the earth's rotation
D)all of the above
26

Which is not an advantage of fiber optics over coaxial cable
A)only fiber can transmit digital signals
B)fiber is cheaper to produce than coaxial cable
C)fiber is not susceptible to electronic interference
D)fiber has more transmission capacity than cable
27

Radio receivers that can tune continuously from AM through FM without pressing a switch to change bands are called
A)AM stereo radios
B)digital tuners
C)multiband receivers
D)smart radios
28

Which of the following techniques is not possible as a result of the development of digital television technology?
A)picture-in-picture display
B)picture zoom
C)freeze frame
D)all are possible as a result of digital technology
29

The development of magnetic tape was a minor development in the area of signal storage.
A)true
B)false
30

The entire field of broadcast news changed with the development of
A)magnetic video tape
B)the three-quarter-inch VTR
C)the home video recorder
31

Streaming audio and video is made possible as a result of
A)digital compression
B)signal buffering
C)both a and b





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