Interesting Quiz On Amplifiers

21 Questions

Settings
Please wait...
Electronics Quizzes & Trivia

An amplifier, or amp, is an electronic device that can be used to increase the power of a signal. We typically use it in machines to enhance volume, i. E. Speakers. What do you know about them?


Questions and Answers
  • 1. 
    In a push-pull amplifier, what makes an input signal two of equal amplitude and opposite polarity?
    • A. 

      Ripple Converter

    • B. 

      White Cathode Follower

    • C. 

      Phase Splitter

    • D. 

      Atom Splitter

  • 2. 
    Which of these is not an actual twentieth-century amplifier brand?
    • A. 

      Marshall

    • B. 

      Real Time

    • C. 

      Peavey

    • D. 

      Fender

  • 3. 
    For vacuum tubes used in power amplifiers, the filament power supply is typically how many volts?
    • A. 

      115 Volts Ac

    • B. 

      6.3 Volts Ac Or Dc

    • C. 

      400 Volts Ac

    • D. 

      50 Volts Dc

  • 4. 
    Which one of the following is not a common amplifier distortion?
    • A. 

      Slew Rate Limiting

    • B. 

      Intermodulation Distortion

    • C. 

      Apochromatic Distortion

    • D. 

      Total Harmonic Distortion

  • 5. 
    A vacuum tube predominately amplifies which of the following?
    • A. 

      Voltage

    • B. 

      Resistance

    • C. 

      Current

    • D. 

      Vacuum

  • 6. 
    • A. 

      The Marantz Model 9

    • B. 

      The Quad

    • C. 

      The Williamson

    • D. 

      Ampzilla

  • 7. 
    A tetrad vacuum tube utilizes how many grids?
    • A. 

      1

    • B. 

      3

    • C. 

      7

    • D. 

      2

  • 8. 
    • A. 

      3

    • B. 

      5

    • C. 

      2

    • D. 

      1

  • 9. 
    In Great Britain, what is the vacuum tube known as?
    • A. 

      Valve

    • B. 

      Audion

    • C. 

      Glass Transistor

    • D. 

      Faucet

  • 10. 
    A Futterman amplifier is unique due to what fact?
    • A. 

      It Does Not Use An Audio Output Transformer

    • B. 

      Uses Only One Vacuum Tube

    • C. 

      All Of These Choices

    • D. 

      Uses Global Positive Feedback

  • 11. 
    Which statement best describes Class A amplifier operation?
    • A. 

      Current Flows During Both The Positive And Negative Half Cycles For A Conduction Angle Of 360 Degrees

    • B. 

      Current Only Flows During The Positive Half Cycle Of The Input Waveform

    • C. 

      Current Only Flows During The Negative Half Cycle Of The Input Waveform

    • D. 

      Current Only Flows During 1/4 Of The Positive Half Cycle Of The Input Waveform

  • 12. 
    • A. 

      Input Stage

    • B. 

      Phase Splitter

    • C. 

      Output Stage

    • D. 

      Driver Stage

  • 13. 
    • A. 

      A Power Amp That Combines Vacuum Tubes And Solid State Devices In The Input And Output Stages

    • B. 

      An Amplifier That Utilizes State Of The Art Technology

    • C. 

      A Power Amp That Combines Ics And Discrete Devices

    • D. 

      A Mix Of Bipolar, Jfet, And Or Mosfet Transistors

  • 14. 
    • A. 

      Bipolar Transistors Are Considerably Larger And More Expensive

    • B. 

      Mosfets Are Biased By Voltage Rather Than Current

    • C. 

      Mosfets Run Cooler, So Therefore More Efficiently

    • D. 

      Bipolar Transistors Have Higher Crossover Distortion

  • 15. 
    • A. 

      None Of These Choices

    • B. 

      Refers To Driving Two Pairs Of Loudspeakers With One Stereo Amplifier

    • C. 

      A Way Of Connecting A Stereo Amplifier To Double Output Power

    • D. 

      When Two Loudspeakers Are Connected In Series To One Channel Of A Power Amp

  • 16. 
    • A. 

      They Offer High Input Impedance And Low Noise

    • B. 

      They Make The Circuit More Linear And Lower Distortion

    • C. 

      They Offer Better Conversion Efficiency Than Bipolar Junction Transistors

    • D. 

      All Of These Choices

  • 17. 
    A power amplifier with a high output impedance will have a low damping factor. What is the definition of damping factor?
    • A. 

      The Ratio Between The Input And Output Voltages

    • B. 

      The Ratio Of Output Current To Output Voltage

    • C. 

      The Amount Of Negative Feedback In Db

    • D. 

      The Ability To Control Woofer Cone Motion In A Loudspeaker

  • 18. 
    Which of the following is not a true fact about class B amplifiers?
    • A. 

      They Are Not Used As Audio Frequency Amplifiers Due To Crossover Distortion

    • B. 

      They Have A Higher Efficiency Than Class C Amplifiers

    • C. 

      They Have A Higher Efficiency Than Class A Amplifiers

    • D. 

      They Have A Conduction Angle Of 180 Degrees

  • 19. 
    Which of the following is a class A amplifier?
    • A. 

      Mesa/Boogie Heartbreaker

    • B. 

      Fender Twin

    • C. 

      Marshall Jcm 2000

    • D. 

      Vox Ac30

  • 20. 
    • A. 

      Ibanez

    • B. 

      Epiphone

    • C. 

      Peavey

    • D. 

      Fender

  • 21. 
    In a spread spectrum communication system, what is an approximation of processing gain?
    • A. 

      Spread Spectrum Cannot Yield Processing Gain

    • B. 

      If Bandwidth Divided By Data Rate

    • C. 

      Chip Rate Divided By Data Rate

    • D. 

      The Code Repeat-Length Times Beta Factor