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Technology Quiz - 3, General Knowledge - Railways MCQ


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25 Questions MCQ Test - Technology Quiz - 3, General Knowledge

Technology Quiz - 3, General Knowledge for Railways 2024 is part of Railways preparation. The Technology Quiz - 3, General Knowledge questions and answers have been prepared according to the Railways exam syllabus.The Technology Quiz - 3, General Knowledge MCQs are made for Railways 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Technology Quiz - 3, General Knowledge below.
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Technology Quiz - 3, General Knowledge - Question 1
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Compact discs, (according to the original CD specifications) hold how many minutes of music?

Detailed Solution for Technology Quiz - 3, General Knowledge - Question 1
According to many stories surrounding the origin of the compact disc, 74 minutes was settled on because it would comfortably contain all of Beethoven's 9th symphony on one disc. Although some stories reference a specific Sony higher-up who claimed this as his favorite piece of music, stories differ. All that's known for sure is that Sony insisted on this and won out over Phillips' original 60 minute proposal.
Technology Quiz - 3, General Knowledge - Question 2
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Once the active medium is excited, the first photons of light are produced by which physical process?

Detailed Solution for Technology Quiz - 3, General Knowledge - Question 2
Spontaneous emission is what you see with most "glow in the dark" toys. You excite the toy by exposing it to bright light, then the toy glows in the dark by spontaneously emitting photons as the excited atoms relax back down to their normal state.
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Technology Quiz - 3, General Knowledge - Question 3
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'DTP' computer abbreviation usually means ?

Technology Quiz - 3, General Knowledge - Question 4
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The average power (in watts) used by a 20 to 25 inch home color television is...?
Detailed Solution for Technology Quiz - 3, General Knowledge - Question 4
About the same as as the most popular light bulb size.
Technology Quiz - 3, General Knowledge - Question 5
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What does AC and DC stand for in the electrical field?
Detailed Solution for Technology Quiz - 3, General Knowledge - Question 5
Electricity is voltage and current. Voltage is electrical pressure, and current is the flow of charged particles. The difference between alternating current (AC) and direct current (DC) is that the electrons in an AC circuit regularly reverse their direction. In a DC circuit electrons always flow in the same direction.
Technology Quiz - 3, General Knowledge - Question 6
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In which decade was the ARRL founded?
Detailed Solution for Technology Quiz - 3, General Knowledge - Question 6
On April 6, 1914, Hiram Percy Maxim proposed the formation of the American Radio Relay League.
Technology Quiz - 3, General Knowledge - Question 7
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'CD' computer abbreviation usually means ?
Technology Quiz - 3, General Knowledge - Question 8
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'.BAK' extension refers usually to what kind of file?
Technology Quiz - 3, General Knowledge - Question 9
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Where is the headquarters of Intel located?
Technology Quiz - 3, General Knowledge - Question 10
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Who co-created the UNIX operating system in 1969 with Dennis Ritchie?
Technology Quiz - 3, General Knowledge - Question 11
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Voltage is sometimes referred to as EMF, or Electromotive...?
Detailed Solution for Technology Quiz - 3, General Knowledge - Question 11
The term EMF, or Electromotive Force, its use now in decline, is attributed to Italian physicist Alessandro Volta (1745-1827). Today we generally use the term "voltage" - can you guess why we call it that?
Technology Quiz - 3, General Knowledge - Question 12
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What does AM mean?
Detailed Solution for Technology Quiz - 3, General Knowledge - Question 12
Amplitude modulation was the first type to be used in radio. It works well with HF and morse code.
Technology Quiz - 3, General Knowledge - Question 13
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'.BAT' extension refers usually to what kind of file?
Technology Quiz - 3, General Knowledge - Question 14
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What is the term to ask the computer to put information in order numerically or alphabetically?
Technology Quiz - 3, General Knowledge - Question 15
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The input used by an antenna or cable to a TV set uses frequencies called...?
Detailed Solution for Technology Quiz - 3, General Knowledge - Question 15
RF is radio frequency. IF is intermediate frequency used inside the TV for processing. AF is audio frequency. SAP is second audio program which may have another language or other soundtrack as an option to the main soundtrack.
Technology Quiz - 3, General Knowledge - Question 16
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Larger buildings may be supplied with a medium voltage electricity supply, and will required a substation or mini-sub. What is the main item of equipment contained in these?
Detailed Solution for Technology Quiz - 3, General Knowledge - Question 16
The transformer is used to transform a medium voltage supply to a low voltage supply, e.g. from 11 000 V to 400 V. A transformer is rated in kVA, kilo-Volt-Amps, which is a measurement of electrical power.
Technology Quiz - 3, General Knowledge - Question 17
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What was the active medium used in the first working laser ever constructed?
Detailed Solution for Technology Quiz - 3, General Knowledge - Question 17
Theodore Maiman built the first working laser using a ruby rod while working at Hughes Research Laboratories in Malibu, California. It lased for the first time on May 16, 1960.
Technology Quiz - 3, General Knowledge - Question 18
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What does EPROM stand for?
Detailed Solution for Technology Quiz - 3, General Knowledge - Question 18
A chip found in alomst every microprocessor...
Technology Quiz - 3, General Knowledge - Question 19
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Blue is what number on the resistor color code?
Technology Quiz - 3, General Knowledge - Question 20
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Changing computer language of 1's and 0's to characters that a person can understand is...
Technology Quiz - 3, General Knowledge - Question 21
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What's a web browser?
Technology Quiz - 3, General Knowledge - Question 22
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http://www.indiabix.com - is an example of what?
Detailed Solution for Technology Quiz - 3, General Knowledge - Question 22
A URL (Uniform {or Universal} Resource Locator) is an address for a specific document found on the Web. It is made up of several components: a domain name, the directories and subdirectories of the site, and the extension. To learn about these parts of a URL, visit the Evaluating Web Sites tutorial.
Technology Quiz - 3, General Knowledge - Question 23
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How many bits is a byte?
Technology Quiz - 3, General Knowledge - Question 24
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The "http" you type at the beginning of any site's address stands for...
Technology Quiz - 3, General Knowledge - Question 25
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Lately you hear a clatter from your computer, especially when you load a program or call up information. What's going on?
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