Quiz  /  MCQ On Voltage Regulator

  • 1. 
    Which of the following is considered as three-pin voltage regulator ICs?

  • Voltage regulators which are adjustable
  • Fixed voltage regulator
  • Both a and b

  • 2. 
    Which type of IC voltage regulator there is a continuous variation in the impedance of transistor in order to supply the desired amount of load current?

  • Linear regulators
  • Switching regulators
  • Both a and b

  • 3. 
    Voltage regulators require

  • Only line regulation
  • Only load regulation
  • A constant load
  • Load and line regulation

  • 4. 
    What type of regulators offer inherent short-circuit protection?

  • Shunt regulators
  • Series regulators
  • Three-terminal regulators
  • Switching regulators

  • 5. 
    Voltage regulators keep a constant …………output voltage when the input or load varies within limits.

  • DC
  • AC
  • ripple

  • 6. 
    Switching regulators are series type regulators, which has ……….power dissipation and …………efficiency.

  • Increased, increased
  • Increased, reduced
  • Reduced, reduced
  • Reduced, increased

  • 7. 
    Which among the following performance parameter is called the change in line voltage within a specified range at a constant load current?

  • Line regulation
  • Load regulation
  • Temperature stability factor
  • Ripple factor

  • 8. 
    The output voltage of a regulated power supply is affected by which of the following factors

  • Input voltage
  • Load current
  • Temperature
  • All the above

  • 9. 
    Series pass transistor always operates in the………. region in a linear IC voltage regulator

  • Active
  • Saturation
  • Cut-off
  • All of these
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