General knowledge:: Technology

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26 

The transformer that develops the high voltage in a home television is commonly called a...?

A. Tesla coil B. Flyback
C. Yoke D. Van de Graaf

27 

In a color television set using a picture tube a high voltage is used to accelerate electron beams to light the screen. That voltage is about...?

A. 500 volts B. 5 thousand volts
C. 25 thousand volts D. 100 thousand volts

28 

The electromagnetic coils on the neck of the picture tube or tubes which pull the electron beam from side to side and up and down are called a...?

A. Transformer B. Yoke
C. Capacitor D. Diode

29 

In the UK, what type of installation requires a fireman's switch?

A. Neon Lighting B. High Pressure Sodium Lighting
C. Water Features D. Hotel Rooms

30 

'.TMP' extension refers usually to what kind of file?

A. Compressed Archive file B. Image file
C. Temporary file D. Audio file

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