This set of Audio Video Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Digital Equipment for Television Studios”.
1. Digital camera signals transfer all analog signals into digital pulses.
a) True
b) False
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Explanation: The conventional cameras have multi conductor cables to send and receive information between camera head and camera control unit (CCU) have been replaced by digital cameras with much smaller and less bulky cables. The digital camera signals transfer all analog signals into digital pulses. These digital signals are more precise and immune to electrical interference than analog signals.
2. Which tubes are used for perfect color and sharp images in digitally controlled cameras?
a) Photon
b) Electron
c) Vacuum
d) Pick-up
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Explanation: The cameras also have a rechargeable battery which switches on after AC power supply is switched off. The time consuming job of aligning three separate pickup tubes can be done automatically with digital camera by using a microprocessor. The pick-up tubes are used for color perfect and sharp images. Alignment operations can be completed in a few seconds.
3. What is the complex camera control unit called in television graphics?
a) Electrical substation
b) Power station
c) Base station
d) Distributed substation
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Explanation: The complex CCU (camera control unit) is called as the base station. Its function is to transform all electrical signals like camera control, synchronizing pulses, audio channels, program intercom channels and a remote view finder fits into digital pulses. Only disadvantage of base station is its higher cost and its sophisticated construction.
4. What is the most basic element of TV graphics besides lettering?
a) Character manipulator
b) Character generator
c) Digital art
d) CCU
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Explanation: One of the most basic elements of TV graphic is lettering and electronic character generator (CG). It has become one of the most commonly used devices as it requires no artistic talent. The CG has two monitors. First is called ‘program’ or ‘line’ which displays the message available to be placed on ‘air’ and the second is called ‘preview’ or ‘setup’ that displays another message which the CG is preparing.
5. The electronics used in character generation is analog in nature in television graphics.
a) True
b) False
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Explanation: The above statement is false. Electronics used in character generation (CG) are complex but digital in nature and controlled by a set of microprocessor. Each function is given a binary code word and its length is determined by the total number of functions the generator is designed to perform.
6. Which equipment is used to store and display a camera shot, slide or graphics made up from two or more video sources in television graphics?
a) Still frame storage unit
b) Fossil fuel storage unit
c) Outdoor storage unit
d) Mobile storage unit
View Answer
Explanation: Another equipment besides CG (Character Generator) used with TV graphics equipment is the ‘Still frame storage unit’. It captures and stores complete video frame in its memory to be recalled and used whenever necessary. The ‘Still-store unit’ can store graphics which is made up of two or more video source.
Sanfoundry Global Education & Learning Series – Audio Video Engineering.
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