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SEMICONDUCTOR DEVICE MCQs

Total Questions : 8
Question 1. Which of the following statements is NOT the diode application in electronic circuit?
  1.    Diode as voltage regulator
  2.    Diode as Rectifier
  3.    Diode as Amplifier
  4.    Diode as solar cell
 Discuss Question
Answer: Option C. -> Diode as Amplifier
Question 2. Current limiting resistance value used in series with LED is normally between
  1.    220Ω to 330Ω
  2.    220kΩ to 330kΩ
  3.    220MΩ to 330MΩ
  4.    50Ω to 55Ω
 Discuss Question
Answer: Option A. -> 220Ω to 330Ω
Question 3. In burglar alarm which type of diode is used
  1.    rectifier diode
  2.    zener diode
  3.    photo diode
  4.    Switching Diode
 Discuss Question
Answer: Option C. -> photo diode
Question 4. A zener diode is a heavily doped pn junction which is always used in
  1.    Forward bias mode
  2.    cut off mode
  3.    Reverse bias mode
  4.    series of load resistor
 Discuss Question
Answer: Option C. -> Reverse bias mode
Question 5. In optocoupler LED and
  1.    rectifier diode
  2.    photo transistor
  3.    zener diode
  4.    resistor
 Discuss Question
Answer: Option C. -> zener diode
Question 6. Zener diodes are mostly used in
  1.    current regulator circuit
  2.    power regulator circuit
  3.    voltage regulator circuit
  4.    rectifier circuit
 Discuss Question
Answer: Option C. -> voltage regulator circuit
Question 7. The characteristics of p-type semiconductors is includes
  1.    Majority carriers are electron
  2.    Has tendency to gain electron
  3.    Has tendency to donor electron
  4.    Easy to conduct electricity
 Discuss Question
Answer: Option A. -> Majority carriers are electron
Question 8. Which among these is NOT a semiconductor
  1.    Germanium
  2.    Silicon
  3.    Gallium Arsenide
  4.    Titanium
 Discuss Question
Answer: Option D. -> Titanium

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