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General Knowledge - Technology

Exercise : Technology - Section 1
61.
Voltage is sometimes referred to as EMF, or Electromotive...?
Field
Factor
Flash
Force
Answer: Option
Explanation:
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?
62.
What does AM mean?
Angelo marconi
Anno median
Amplitude modulation
Amperes
Answer: Option
Explanation:
Amplitude modulation was the first type to be used in radio. It works well with HF and morse code.
63.
'.BAT' extension refers usually to what kind of file?
Compressed Archive file
System file
Audio file
Backup file
Answer: Option
Explanation:
No answer description is available. Let's discuss.
64.
What is the term to ask the computer to put information in order numerically or alphabetically?
Crop
Report
Record
Sort
Answer: Option
Explanation:
No answer description is available. Let's discuss.
65.
The input used by an antenna or cable to a TV set uses frequencies called...?
IF
RF
AF
SAP
Answer: Option
Explanation:
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.
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