NCTI REVIEW CONSUMER DIGITAL
ELECTRONICS
The National Television System Committee (NTSC) Correct Ans - What
is the name of the group that established the initial technical standards for the
television industry, ensuring a single system would deliver consistent service
across the nation?
Quadrature Amplitude Modulation (QAM) Correct Ans - What signal
modulation technique do cable operators use to transport digital television
signals through the cable network?
The use of progressive scanning mode in EDTV. Correct Ans - What is
the major change in enhance definition tv (EDTV) that improved picture
quality over standard definition tv (SDTV)?
The U.S. Deficit Reduction Act. Correct Ans - What legislation required
all television stations switch to digital -only broadcasting?
DTAs do not communicate RF signal upstream. Correct Ans - Why are
digital terminal adapters (DTA) more cost effective than a full- featured set-
top-box (STB)?
8-level vestigial sideband (8-VSB). Correct Ans - What terrestrial
transmission technology did the Advanced Television Committee (ATSC)
select?
The multiple sub-Nyquist sampling encoding (MUSE) system. Correct Ans
- Which system advanced television to high definition (HD)?
To provide the best HD picture, STBs typically connect to HDTVs via a High -
Definition Multimedia Interface(HDMI). Correct Ans - How do set-top-
boxes (STBs) Typically connect to high definition televisions (HDTV) to
provide the best picture quality?
, The digital terminal adapter (DTA) Correct Ans - What inexpensive
device is used by cable operators to provide digital TV (DTV) services to all of
their customers?
Conditional Access (CA) Correct Ans - Which technology enables cable
operators to control access to services by encrypting the programming?
Magnetically directed electron beams, from electron guns, horizontally move
back and forth, sending electron beams through a shadow mask. Correct
Ans - Which statement below is correct in describing the internal process
of a cathode ray tube (CRT)?
Liquid crystal display (LCD) Correct Ans - Which type of TV
technology had to overcome early disadvantages such as weak contrast, a lag
or trail effect where fast-moving images appear to "smear" and screen door
effect where viewers see a visible pixel structure at close range?
Polarized Light. Correct Ans - The liquid crystal in liquid crystal
display (LCD) technology is suspended between two glass plates and the
crystals are normally in a twisted configuration. What type of light follows the
orientation of the crystals, and is allowed to pass through?
The size of the screen Correct Ans - Projection technology enables
larger displays than those of flat panel or direct view TV sets. With rear-
projection TV sets, what does the depth of the TV set depend on?
DLP images are brighter than those formed from LCD and LCoS technologies.
Correct Ans - A customer is interested in purchasing a projection display
and asks how DLP compares to other technologies. How does DLP technology
compare to liquid crystal display (LCD) technology and related technologies,
such as liquid crystal on silicon (LCoS)?
Liquid crystal display (LCD) Correct Ans - A customer is interested in
purchasing a video projector and asks about the different video display
technologies. Which video display technology has strength that include high
color saturation and color accuracy?
The higher the gain, the lower the viewing angle. Correct Ans - While
much time and attention can be spent choosing a video projector technology,
ELECTRONICS
The National Television System Committee (NTSC) Correct Ans - What
is the name of the group that established the initial technical standards for the
television industry, ensuring a single system would deliver consistent service
across the nation?
Quadrature Amplitude Modulation (QAM) Correct Ans - What signal
modulation technique do cable operators use to transport digital television
signals through the cable network?
The use of progressive scanning mode in EDTV. Correct Ans - What is
the major change in enhance definition tv (EDTV) that improved picture
quality over standard definition tv (SDTV)?
The U.S. Deficit Reduction Act. Correct Ans - What legislation required
all television stations switch to digital -only broadcasting?
DTAs do not communicate RF signal upstream. Correct Ans - Why are
digital terminal adapters (DTA) more cost effective than a full- featured set-
top-box (STB)?
8-level vestigial sideband (8-VSB). Correct Ans - What terrestrial
transmission technology did the Advanced Television Committee (ATSC)
select?
The multiple sub-Nyquist sampling encoding (MUSE) system. Correct Ans
- Which system advanced television to high definition (HD)?
To provide the best HD picture, STBs typically connect to HDTVs via a High -
Definition Multimedia Interface(HDMI). Correct Ans - How do set-top-
boxes (STBs) Typically connect to high definition televisions (HDTV) to
provide the best picture quality?
, The digital terminal adapter (DTA) Correct Ans - What inexpensive
device is used by cable operators to provide digital TV (DTV) services to all of
their customers?
Conditional Access (CA) Correct Ans - Which technology enables cable
operators to control access to services by encrypting the programming?
Magnetically directed electron beams, from electron guns, horizontally move
back and forth, sending electron beams through a shadow mask. Correct
Ans - Which statement below is correct in describing the internal process
of a cathode ray tube (CRT)?
Liquid crystal display (LCD) Correct Ans - Which type of TV
technology had to overcome early disadvantages such as weak contrast, a lag
or trail effect where fast-moving images appear to "smear" and screen door
effect where viewers see a visible pixel structure at close range?
Polarized Light. Correct Ans - The liquid crystal in liquid crystal
display (LCD) technology is suspended between two glass plates and the
crystals are normally in a twisted configuration. What type of light follows the
orientation of the crystals, and is allowed to pass through?
The size of the screen Correct Ans - Projection technology enables
larger displays than those of flat panel or direct view TV sets. With rear-
projection TV sets, what does the depth of the TV set depend on?
DLP images are brighter than those formed from LCD and LCoS technologies.
Correct Ans - A customer is interested in purchasing a projection display
and asks how DLP compares to other technologies. How does DLP technology
compare to liquid crystal display (LCD) technology and related technologies,
such as liquid crystal on silicon (LCoS)?
Liquid crystal display (LCD) Correct Ans - A customer is interested in
purchasing a video projector and asks about the different video display
technologies. Which video display technology has strength that include high
color saturation and color accuracy?
The higher the gain, the lower the viewing angle. Correct Ans - While
much time and attention can be spent choosing a video projector technology,
