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
Answer: Option B
A. 500 volts
B. 5 thousand volts
C. 25 thousand volts
D. 100 thousand volts
Answer: Option B
In which decade was the American Institute of Electrical Engineers (AIEE) founded?
A. 1850s
B. 1880s
C. 1930s
D. 1950s
What is part of a database that holds only one type of information?
A. Report
B. Field
C. Record
D. File
'OS' computer abbreviation usually means ?
A. Order of Significance
B. Open Software
C. Operating System
D. Optical Sensor
In which decade with the first transatlantic radio broadcast occur?
A. 1850s
B. 1860s
C. 1870s
D. 1900s
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