Technology Questions and Answers updated daily – General Knowledge



15 Technology Questions and answers section with explanation for various online exam preparation, various interviews, General Knowledge Technology online test. Technology Questions with detailed description, explanation will help you to master the topic.

Technology Questions

1.    In the United States the television broadcast standard is?



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Correct Ans:NTSC
Explanation:
PAL and SECAM are standards used in other countries. RGB stands for red, green, and blue - the colors of light used to create an image in a color tv set and is often used as a format name for computer monitors.


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



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Correct Ans:neon lighting
Explanation:
Neon lighting runs at a high voltage, typically above 1000 Volts. A fireman's switch protects a fireman from receiving a shock when a water jet is sprayed onto the installation. The switches are red, and mounted in a conspicuous position. (This is specified by IEE Regulations (Europe), SANS (South Africa), UK Electricity regulations and many Asian countries. I am unable to confirm other countries' requirements, so feel free to let me know.)


3. The first step to getting output from a laser is to excite an active medium. What is this process called?



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Correct Ans:pumping
Explanation:
A collection of atoms or molecules that can be excited to a higher energy state is called an active medium. Before lasing can occur, the active media is "pumped". The process of raising the atoms in the active media from a lower energy state to a higher state is like pumping water up from a well.


4.     What frequency range is the High Frequency band?



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Correct Ans:3 to 30 MHZ
Explanation:


5. Made from a variety of materials, such as carbon, which inhibits the flow of current?



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Correct Ans:capacitor
Explanation:


6.   '.MPG' extension refers usually to what kind of file?



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Correct Ans:animation/movie file
Explanation:


7. The purpose of choke in tube light is ?



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Correct Ans:To increase the voltage momentarily
Explanation:


8. Which is a type of Electrically-Erasable Programmable Read-Only Memory?



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Correct Ans:flash
Explanation:
It's commonly used for MP3 players, computer BIOS code and "thumb" drives. Originally developed in Japan by Toshiba, it has become quite popular for products requiring non-volatile erasable memory. Flash devices have a limited number of erase cycles (typically 10,000 to 1,000,000 cycles) so they're not as good a choice for applications in which the data changes constantly. However, since it has no moving parts (unlike a hard disk) it is an excellent choice for storing the operating code for small personal electronics like PDAs, cell phones, digital cameras, and the data in items like MP3 players.


9. Most modern TV's draw power even if turned off. The circuit the power is used in does what function?



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Correct Ans:remote control
Explanation:
Some authorities are recommending TV's, VCR's and Stereo's be connected to power strips with switches and turned off when not in use to save energy. Your remote will not work until power is switched back on.


10. In which decade was the SPICE simulator introduced?



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Correct Ans:1970
Explanation:
SPICE (Simulation Program with Integrated Circuit Emphasis) was introduced in May 1972 by the University of Berkeley, California.


11. .MOV' extension refers usually to what kind of file?



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Correct Ans:movie file
Explanation:


12. In which decade with the first transatlantic radio broadcast occur?



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Correct Ans:1990
Explanation:
On December 12, 1901, a radio transmission received by Guglielmo Marconi resulted in the first transmission of a transatlantic wireless signal (Morse Code) from Poldhu, Cornwall, to St. John's, Newfoundland.


13. What is part of a database that holds only one type of information?



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Correct Ans:field
Explanation:


14. 'OS' computer abbreviation usually means ?



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Correct Ans:operating system
Explanation:


15.  In which decade was the American Institute of Electrical Engineers (AIEE) founded?



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Correct Ans:1880
Explanation:
The IEEE (Institute of Electrical and Electronics Engineers) was formed in 1963 by the merger of the Institute of Radio Engineers (IRE, founded 1912) and the American Institute of Electrical Engineers (AIEE, founded 1884).



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