This set of Video Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Satellite Off-Air Tuners and Digital Video Recorders”.
1. Which of the following tuner enables receiving Off-Air channels along with On-Air channel?
a) Satellite Off-Air
b) Clip on
c) Electronic
d) Virtual
View Answer
Explanation: The satellite Off-Air tuners are the one that enables receiving Off-Air channels (Terrestrial transmission) along with On-Air channels (DTH). These provide an easy way to watch HD channels that are broadcast locally. It can also receive local digital and analog broadcast.
2. Using satellite Off-Air receivers, Indians can watch Indian TV channels like Sony and Zee in USA and UK.
a) True
b) False
View Answer
Explanation: Satellite Off-Air tuners are HD satellite receiver with integrated Off-Air tuner for reception of High Definition (HD) and Standard Definition (SD) programming. Both HD and SD content can be received on HDTV receiver using HD video connections. SD content is up-converted and options can be selected with a remote control. Using such Satellite Off-Air receivers, Indians can watch Indian TV channels like Sony and Zee in USA and UK along with local transmission.
3. In which encoder the signal from an antenna or analog cable must go through in Digital video recorder?
a) MPEG-1
b) MPEG-3
c) MPEG-4
d) MPEG-2
View Answer
Explanation: In digital video recorder signals from an antenna or analog cable must go through an MPEG-2 encoder which converts the signal from analog to digital format. This signal is sent to the hard disc drive for storage. For analog TV receivers, the signals should first be decoded back to the analog form. Analog TV signals will need an encoder and decoder for analog TV receivers.
4. Hard disc based DVRs (Digital Video Recorder) recorded programs cannot be deleted.
a) True
b) False
View Answer
Explanation: The above statement is false. Hard disc based DVRs (Digital Video Recorder) recorded programs can be watched at any time or it can even be deleted. DVRs makes the ‘time shifting’ such as pausing live TV telecasts, replaying interesting scenes, watching complete program by skipping advertisements is possible.
Sanfoundry Global Education & Learning Series – Video Engineering.
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