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Silicon Controlled Rectifiers MCQ Test

  1. An SCR has _____ pn junctions.
  2. What is the full form of SCR?
  3. An SCR has three terminals viz _____.
  4. An SCR is made of ______.
  5. What is Cathode?
  6. An SCR is turned off by _______.
  7. AC power in a load can be controlled by using ________.
  8. Why SCR is made up of silicon?
  9. An SCR can be used ______.
  10. In a silicon controlled rectifier, the load is connected _____.
  11. How many number of PN junction in an SCR?
  12. If firing angle in an SCR circuit is increased, than output _____.
  13. Is SCR can exercise control over Positive or negative half-cycles of a.c. supply ?
  14. After firing an scr, the gate pulse is remove. The current in the scr will ____.
Last Updated: Apr 17, 2021,
Posted in Interview Questions,
25 Questions
Silicon Controlled Rectifiers MCQ

Take Silicon Controlled Rectifiers MCQ Test & Online Quiz to Test your Knowledge

We have listed Below the best Silicon Controlled Rectifiers MCQ Questions that checks your basic knowledge of Silicon Controlled Rectifiers. This Silicon Controlled Rectifiers MCQ Test contains 25 Multiple Choice Questions. You have to select the right answer to the question. Finally, you can also download below the Silicon Controlled Rectifiers MCQ PDF.

  • Two
  • Three
  • Four
  • None of the above
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  • Silicon Controlled Rectifiers
  • solar Controlled Rectifiers
  • serial Controlled Rectifiers
  • None of the above
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  • Anode, cathode, grid
  • Cathode, anode, gate
  • Anode, cathode, drain
  • None of the above
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  • Germanium
  • Carbon
  • Silicon
  • None of the above
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  • Electrical Device
  • Metallic Electrode
  • Tube
  • None of above
Download Free : Silicon Controlled Rectifiers MCQ PDF
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  • Reducing gate voltage to zero
  • Reducing anode voltage to zero
  • Reverse biasing the gate
  • None of the above
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  • two SCR’s in parallel opposition
  • two SCR’s in series
  • three SCR’s in series
  • four SCR’s in series
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  • silicon has large leakage current than germanium
  • silicon has small leakage current than germanium
  • silicon has small leakage voltage than germanium
  • silicon has large leakage voltage than germanium
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  • as static conductor
  • for power control
  • for speed control of dc shunt motor
  • All of the above
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  • Across anode
  • In series with anode
  • Across cathode
  • In series with cathode
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  • Remains the same
  • Is increased
  • is decreased
  • None of the above
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  • remain the same
  • Immediately fall to zero
  • Rise up
  • Rise a little and then fall to zero
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  • An LC circuit
  • an UJT relaxation oscillator circuit
  • A diac-triac circuit
  • A rheostatic arrangement
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  • two SCRs in series
  • two SCRs in parallel
  • two SCRs in parallel opposition
  • None of the above
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  • breakdown voltage
  • peak reverse voltage
  • holding current
  • latching current
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  • half wave
  • full wave
  • bridge
  • All of the above
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  • Rectifiers cannot operate at high voltages.
  • Rectifiers can operate at high voltages.
  • high voltages.
  • None of the above
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  • Unijunction device
  • Device with four junction
  • Device with three junction
  • None of above
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  • Diac
  • Triac
  • Thyristor
  • None of above
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  • Mechanical
  • Bidirectional
  • Unidirectional
  • None of above
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  • Current
  • Voltage
  • Both Voltage & Current
  • None of above
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