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Regulated DC Power Supply MCQ

Regulated DC Power Supply MCQ

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  • 21st Feb, 2023
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Take Regulated DC Power Supply MCQ Test & Online Quiz to test your Knowledge

Below is the Regulated DC Power Supply MCQ test that checks your basic knowledge of Regulated DC Power Supply. This Regulated DC Power Supply MCQ Test contains 20 Multiple Choice Questions. You have to select the right answer to the question. also, download here the free Regulated DC Power Supply MCQ pdf

Regulated DC Power Supply MCQ Test

1) A regulated DC power supply is also known as a ____.

  • A. linear power supply
  • B.dual power supply
  • C.hyper power supply
  • D.None of the above

2) The basic building blocks of a regulated DC power supply contains:

  • A. A step-down transformer
  • B.A rectifier and A DC filter
  • C.A regulator
  • D.All of the above

3) Which one of the following is the another name of Zener diode?

  • A. Voltage
  • B.Breakdown
  • C.Power
  • D.Current

4) Zener diode are generally made of _____.

  • A. Germanium
  • B.Silicon
  • C.Carbon
  • D.None of the above

5) When load current is zero, the Zener current will be ____.

  • A. Zero
  • B.Maximum
  • C.Minimum
  • D.None of the above

6) Which among the following are regarded as three-pin voltage regulator ICs?

  • A. Fixed voltage regulators
  • B.Adjustable voltage regulators
  • C.both (A) and (B)
  • D.None of the above

7) Voltage regulators normally use ___.

  • A. Negative feedback
  • B.Positive feedback
  • C.No feedback
  • D.Phase limiting

8) Which may be needed in a discrete voltage regulator to prevent Oscillations?

  • A. Negative feedback
  • B.Current sensing
  • C.Excessive load current
  • D.A capacitor

9) The output impedance of a voltage regulator is ___.

  • A. Very large
  • B.Very small
  • C.Equal to the load voltage divided by the load current
  • D.Equal to the input voltage divided by the output current

10) Simple current limiting produces too much heat in the Pass transistor.

  • A. True
  • B.False

11) What do you mean by the Zener impedance?

  • A. increasing series resistance
  • B.decreasing series resistance
  • C.equivalent series resistance
  • D.None of the above

12) This Zener diode maintains voltage constant across the load.

  • A. True
  • B.False

13) As the junction temperature increases, the voltage breakdown point for avalanche mechanism ____.

  • A. Remains the same
  • B.Decrease
  • C.Increases
  • D.None of the above

14) What are the dependent factors of the current in a Zener diode?

  • A. External resistance
  • B.Power dissipation
  • C.Both A and B
  • D.None of the above

15) What is the full form of SCR?

  • A. Simple Controlled Rectifiers
  • B.Silicon Controlled Rectifiers
  • C.Silicon Controlled Resistor
  • D.None of the above

16) Gate is the controlling element of SCR.

  • A. True
  • B.False

17) When SCR is OFF, the current in the circuit is ___.

  • A. small leakage current
  • B.exactly zero
  • C.large leakage current
  • D.None of the above

18) SCRs are unidirectional devices.

  • A. True
  • B.False

19) An SCR is a ______ triggered device.

  • A. Voltage
  • B.Current
  • C.Force
  • D.None of the above

20) Output of a phase splitter is ____.

  • A. a pair of sine waves of unequal amplitude
  • B.a pair of sine waves of equal amplitudes
  • C.a pair of sine waves of equal amplitudes and opposite phase
  • D.a pair of sine waves of unequal amplitudes and opposite phase

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