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Television - Questions and Answers

Practice questions on Television.

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1. In TV receiver, the synchronizing pulses are fed to
A. The horizontal and vertical deflector plates of the picture tube
B. the control grid
C. the cathode
D. the electron gun
Explanation:
2. In television the picture signal frequency is in the order of
A. hertz
B. kilohertz
C. megahertz
D. gigahertz
Explanation:
3. The photosensitive plate of an Iconoscope is known as
A. mosaic
B. camera
C. grid
D. electron gun
Explanation:
4. Scanning is
A. the process in which light audio frequency variations are converted into voltage variations
B. the process in which light intensity is converted into variations in potentials
C. done by a beam of positive rays
D. the process in which audio frequency variations are converted into corresponding video frequency variations
Explanation:
5. In television broadcasting, video signals are produced using
A. an oscillator
B. a microphone
C. a loud speaker
D. an iconoscope
Explanation:
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