4th Semester Electrician NSQF Quiz

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Questions and Answers

What is the name of the symbol representing a two input OR gate?

  • Two input NAND gate
  • Two input NOR gate
  • Two input OR gate (correct)
  • Two input AND gate

Which is a passive component in electronics?

  • Capacitor (correct)
  • Diode
  • Transistor
  • Diac

Which electronic circuit generates A.C signal without input?

  • Rectifier circuit
  • Amplifier circuit
  • Filter circuit
  • Oscillator circuit (correct)

What is the name of the device symbol represented by 'SCR'?

<p>SCR (C)</p> Signup and view all the answers

How many characters are in the hexadecimal number system?

<p>16 (D)</p> Signup and view all the answers

Flashcards

OR gate symbol

A graphical representation of an electronic circuit that outputs a high signal when at least one of the input signals is high.

Passive electronic component?

A component that doesn't amplify or generate signals, but instead stores or modifies them, such as energy or voltage.

What's an oscillator circuit?

An electronic circuit that produces an alternating current (AC) signal without an external input.

SCR symbol name

Silicon-controlled rectifier is a type of semiconductor device used to control the flow of power in AC circuits.

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Hexadecimal base

A number system that uses 16 characters.

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Study Notes

Electronics Basics

  • The symbol representing a two-input OR gate is ℵ (OR Gate Symbol).

Components

  • A resistor is a passive component in electronics.

Electronic Circuits

  • An oscillator is an electronic circuit that generates an A.C signal without any input.

Devices

  • SCR stands for Silicon-Controlled Rectifier, a type of thyristor device symbol.

Number Systems

  • The hexadecimal number system has 16 characters: 0-9 and A-F.

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