Bipolar Junction Transistor Quiz! Trivia

25 Questions | Total Attempts: 515

SettingsSettingsSettings
Please wait...
Bipolar Junction Transistor Quiz! Trivia

.


Questions and Answers
  • 1. 
    • A. 

      Transistor

    • B. 

      Zener

    • C. 

      Diode

    • D. 

      Shockley

  • 2. 
    What electronic function made the transistor famous?
    • A. 

      Switch

    • B. 

      Isolation

    • C. 

      Amplification

    • D. 

      Multiplier

  • 3. 
    In which direction does the arrow point on an npn transistor?
    • A. 

      Away

    • B. 

      Outward

    • C. 

      Either a or b

    • D. 

      Cannot be determined

  • 4. 
    In which direction does the arrow point on a pnp transistor?
    • A. 

      Away

    • B. 

      Either a or c

    • C. 

      Outward

    • D. 

      Cannot be determined

  • 5. 
    What was the name of the very first transistor?
    • A. 

      Double contact

    • B. 

      Triple contact

    • C. 

      Single contact

    • D. 

      Point contact

  • 6. 
    To properly bias an npn transistor, what polarity voltage is applied to the collector, and what is its relationships to the base voltage?
    • A. 

      Positive, more negative

    • B. 

      Positive, more positive

    • C. 

      Negative, more positive

    • D. 

      Negative, more negative

  • 7. 
    To properly bias a pnp transistor, what polarity voltage is applied to the collector and what is its relationship to the base voltage?
    • A. 

      Positive, more negative

    • B. 

      Positive, more positive

    • C. 

      Negative, more positive

    • D. 

      Negative, more negative

  • 8. 
    In the npn transistor, what section is made very thin compared with the other two sections? 
    • A. 

      The p or base section

    • B. 

      The n or base section

    • C. 

      The p or emitter section

    • D. 

      The n or emitter section

  • 9. 
    In the pnp transistor, what section is made very thin compared with the other two sections?
    • A. 

      The p or base section

    • B. 

      The n or base section

    • C. 

      The p or emitter section

    • D. 

      The n or emitter section

  • 10. 
    What % of current in an npn transistor reaches the collector?
    • A. 

      50%

    • B. 

      100%

    • C. 

      98%

    • D. 

      0%

  • 11. 
    What are the majority current carriers in a pnp transistor?
    • A. 

      Electrons

    • B. 

      Holes

    • C. 

      Neutrons

    • D. 

      Protons

  • 12. 
    What are the majority current carriers in an npn transistor?
    • A. 

      Electrons

    • B. 

      Holes

    • C. 

      Protons

    • D. 

      Neutrons

  • 13. 
    What is the relationship between the polarity of the voltage applied to the pnp transistor and that applied to the npn transistor?
    • A. 

      The polarity of voltage applied to the pnp transistor is the same of that applied to the npn transistor

    • B. 

      The polarity of voltage applied to the pnp transistor is opposite of that applied to the npn transistor

    • C. 

      Either a or b

    • D. 

      No relationship

  • 14. 
    Name the current loops in a transistor.
    • A. 

      The base current loop

    • B. 

      The collector current loop

    • C. 

      The emitter current loop

    • D. 

      Both a and b

  • 15. 
    What is the name of the device that provides an increase in current, voltage, or power of a signal without appreciably altering the original signal?
    • A. 

      Isolator

    • B. 

      Switch

    • C. 

      Amplifier

    • D. 

      Transistor

  • 16. 
    In the basic common emitter transistor amplifier, what is the relationship between the polarity of the input and output signals?
    • A. 

      The signals are opposite in polarity

    • B. 

      The signals are 180 degrees out of phase with each other

    • C. 

      The signal are in phase

    • D. 

      Either a or b

  • 17. 
    What is the primary difference between the npn and pnp amplifiers?
    • A. 

      The polarity of the source voltage

    • B. 

      The polarity of the output voltage

    • C. 

      The type of biasing

    • D. 

      The classes of amplifier

  • 18. 
    • A. 

      Base current or fixed bias

    • B. 

      Voltage divider or beta independent

    • C. 

      Emitter stabilized circuit

    • D. 

      All of the above

  • 19. 
    Which biasing method is the most stable?
    • A. 

      Base current or fixed bias

    • B. 

      Voltage divider or beta independent

    • C. 

      Emitter stabilized circuit

    • D. 

      All of the above

  • 20. 
    What type of bias is used where only moderate changes in ambient temperature are expected?
    • A. 

      Self bias

    • B. 

      Voltage divider or beta independent

    • C. 

      Emitter stabilized circuit

    • D. 

      None of the above

  • 21. 
    What is the most widely used combination-bias system?
    • A. 

      Voltage divider type

    • B. 

      Base current or fixed bias

    • C. 

      Beta independent type

    • D. 

      Either a or c

  • 22. 
    What amplifier class of operation allows collector current to flow during the complete cycle of the input?
    • A. 

      Class a

    • B. 

      Class b

    • C. 

      Class c

    • D. 

      Class ab

  • 23. 
    What amplifier class of operation allows collector current to flow during the half cycle only of the input
    • A. 

      Class a

    • B. 

      Class b

    • C. 

      Class c

    • D. 

      Class ab

  • 24. 
    What is the name of the term used to descirbe the condition in a transistor when the emitter-base junction has zero bias or is reverse biased and there is no collector current?
    • A. 

      Cutoff

    • B. 

      Active

    • C. 

      Saturation

    • D. 

      None of the above

  • 25. 
    What primary item/s determined the class of operation of an amplifier?
    • A. 

      The amount of bias

    • B. 

      The amplitude of the input signal

    • C. 

      Both of the above

    • D. 

      None of the above