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Subel. T6
12 questions
Subelement T6

ELECTRONIC AND ELECTRICAL COMPONENTS

Section T6B

Semiconductors: basic principles and applications of solid-state devices, diodes and transistors; Gain

Which is true about forward voltage drop in a diode?

  • Correct Answer
    It is lower in some diode types than in others
  • It is proportional to peak inverse voltage
  • It indicates that the diode is defective
  • It has no impact on the voltage delivered to the load
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What electronic component allows current to flow in only one direction?

  • Resistor
  • Fuse
  • Correct Answer
    Diode
  • Driven element
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Which of these components can be used as an electronic switch?

  • Varistor
  • Potentiometer
  • Correct Answer
    Transistor
  • Thermistor
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Which of the following components can consist of three regions of semiconductor material?

  • Alternator
  • Correct Answer
    Transistor
  • Triode
  • Pentode
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What type of transistor has a gate, drain, and source?

  • Varistor
  • Correct Answer
    Field-effect
  • Hall-effect
  • Bipolar junction
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How is the cathode lead of a semiconductor diode often marked on the package?

  • With the word "cathode"
  • Correct Answer
    With a stripe
  • With the letter C
  • With the letter K
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What causes a light-emitting diode (LED) to emit light?

  • Correct Answer
    Forward current
  • Reverse current
  • Capacitively-coupled RF signal
  • Inductively-coupled RF signal
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What does the abbreviation FET stand for?

  • Frequency Emission Transmitter
  • Fast Electron Transistor
  • Free Electron Transmitter
  • Correct Answer
    Field Effect Transistor
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What are the names for the electrodes of a diode?

  • Plus and minus
  • Source and drain
  • Correct Answer
    Anode and cathode
  • Gate and base
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Which of the following can provide power gain?

  • Transformer
  • Correct Answer
    Transistor
  • Reactor
  • Resistor
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What does the term gain mean in amplifiers?

  • The output signal voltage relative to the input signal voltage
  • The output signal current relative to the input signal current
  • The output signal power relative to the input signal power
  • Correct Answer
    All these choices are correct
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What are the names of the electrodes of a bipolar junction transistor?

  • Signal, bias, power
  • Correct Answer
    Emitter, base, collector
  • Input, output, supply
  • Pole one, pole two, output
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Go to T6A Go to T6C
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