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NTSC: Quiz

  
  
  
  

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More interesting facts on NTSC

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Question 1: Matching the field refresh rate to the power source avoided ________ (also called beating), which produces rolling bars on the screen.
IntermodulationAmplifierFrequency mixerDistortion

Question 2: It used a rotating color wheel, reduced the number of scan lines from 525 to 405, and increased the field rate from 60 to 144 (but had an effective ________ of only 24 frames a second).
VideoInterlaceNTSCFrame rate

Question 3: The FCC had briefly approved a different color television standard, starting in October 1950, which was developed by ________.
NBCAmerican Broadcasting CompanyCBSThe CW Television Network

Question 4: (________ sets receiving analog signals convert the continuous horizontal scan lines into discrete pixels before displaying them.
DVB-TDigital Video BroadcastingATSC (standards)Digital television

Question 5: Unlike the 576i ________ this difference cannot be overcome by a simple speed-up.
Digital videoBlu-ray DiscHD DVDVideo

Question 6: The NTSC field refresh frequency in the black-and-white system originally exactly matched the nominal 60 Hz frequency of ________ power used in the United States.
Electric currentElectricityAlternating currentTransformer

Question 7: The standard recommended a ________ of 30 frames (images) per second, consisting of two interlaced fields per frame at 262.5 lines per field and 60 fields per second.
ATSC (standards)NTSCFrame ratePAL

Question 8: The National Television System Committee was established in 1940 by the United States ________ (FCC) to resolve the conflicts that arose between companies over the introduction of a nationwide analog television system in the United States.
CBSUltra high frequencyFederal Communications CommissionMobile television

Question 9: The entire upper sideband is transmitted, but only 1.25 MHz of the lower sideband, known as a ________, is transmitted.
Amplitude modulationSingle-sideband modulationOrthogonal frequency-division multiplexingDemodulation

Question 10: Early ________ applications also used vertical blanking interval lines 14–18 and 20, but teletext over NTSC was never widely adopted by viewers [5].
Broadcast flagATSC (standards)Closed captioningTeletext
















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