Bu - Acoustics (Annayazu)

54 Questions | Total Attempts: 24

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Bu - Acoustics (Annayazu) - Quiz

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Questions and Answers
  • 1. 
    Frequency below human hearing (less than 20 Hz)
    • A. 

      Ultrasonics

    • B. 

      Infrasonics

    • C. 

      Microsonic

    • D. 

      Macrosonic

  • 2. 
    The frequency above human hearing (more than 20,000 Hz)
    • A. 

      Supersonic

    • B. 

      Infrasonic

    • C. 

      Ultrasonic

    • D. 

      Macro sonic

  • 3. 
    The dying out of sound; steady decline in loudness of the reverberation.
    • A. 

      Reverberation

    • B. 

      Fading

    • C. 

      Bommy

    • D. 

      Decay

  • 4. 
    Condition of a sounds wherein male voice range is excessively reverberant.
    • A. 

      Boomy

    • B. 

      Loud

    • C. 

      Fidelity

    • D. 

      Ringing Sound

  • 5. 
    Sounds which is discontinuous or fluctuates:
    • A. 

      Direct Sound

    • B. 

      Indirect Sound

    • C. 

      Intermittent sound

    • D. 

      Focusing Sound

  • 6. 
    Sound propagated through a solid structure:
    • A. 

      Intermittent sound

    • B. 

      Structure-borne sound

    • C. 

      Air-borne sound

    • D. 

      Direct Sound

  • 7. 
    Sound caused by vibrations that transmit through air:
    • A. 

      Intermittent sound

    • B. 

      Air-borne sound

    • C. 

      Structure-borne sound

    • D. 

      Direct sound

  • 8. 
    Perception of noise or ringing in the ears:
    • A. 

      Pitch

    • B. 

      Tinnitus

    • C. 

      Decay

    • D. 

      Fidelity

  • 9. 
    Faithful reproduction of a sound surface:
    • A. 

      Purity

    • B. 

      Fidelity

    • C. 

      Decay

    • D. 

      Creep

  • 10. 
    Noise caused by the collision of two objects:
    • A. 

      Impact Noise

    • B. 

      Colliding Noise

    • C. 

      Break-in Noise

    • D. 

      Break-out Noise

  • 11. 
    Exterior background noise in a neighborhood (traffic, aircraft, etc.)
    • A. 

      Background Noise

    • B. 

      Foreground Noise

    • C. 

      Ambient Noise

    • D. 

      Environmental Noise

  • 12. 
    Aka ambient noise
    • A. 

      White Noise

    • B. 

      Background noise

    • C. 

      Impact noise

    • D. 

      Environmental noise

  • 13. 
    The noise which energy is uniform over a wide range of frequencies; sounds hissy:
    • A. 

      White noise

    • B. 

      Ambient noise

    • C. 

      Break-in noise

    • D. 

      Black noise

  • 14. 
    Noise from surroundings to interior of duct:
    • A. 

      Break-in noise

    • B. 

      Break-out noise

    • C. 

      Interior noise

    • D. 

      Exterior noise

  • 15. 
    Noise from interior of duct going to exterior:
    • A. 

      Break-out noise

    • B. 

      Break-in noise

    • C. 

      Interior noise

    • D. 

      Exterior noise

  • 16. 
    Irregular diffraction of sound in many directions:
    • A. 

      Attenuation

    • B. 

      Resonance

    • C. 

      Scattering

    • D. 

      Reverberation

  • 17. 
    The continuous of sound in an enclosed space after the initial source is eliminated:
    • A. 

      Attenuation 

    • B. 

      Diffraction

    • C. 

      Resonance

    • D. 

      Reverberation

  • 18. 
    A large amplitude of vibration produced when frequent is equal:
    • A. 

      Scattering

    • B. 

      Resonance

    • C. 

      Attenuation

    • D. 

      Reverberation

  • 19. 
    Change in direction of propagation of sound caused by bending of a barrier
    • A. 

      Reflection

    • B. 

      Diffraction

    • C. 

      Resonance

    • D. 

      Attenuation

  • 20. 
    Reduction in sound level:
    • A. 

      Diffraction

    • B. 

      Attenuation

    • C. 

      Reverberation

    • D. 

      Resonance

  • 21. 
    A sound field created by repeated reflections of sound from the boundaries in an enclosed space:
    • A. 

      Reflective sound field

    • B. 

      Resonance sound field

    • C. 

      Reverberation sound field

    • D. 

      Diffuse sound field

  • 22. 
    A sound field in which the sound comes in equal intensity from all direction:
    • A. 

      Reverberation sound field

    • B. 

      Diffuse sound field

    • C. 

      Reflective sound field

    • D. 

      Absorptive sound field

  • 23. 
    A room containing a large amount of sound absorption:
    • A. 

      Dead Room

    • B. 

      Green Room

    • C. 

      Live Room

    • D. 

      Black Room

  • 24. 
    A room containing a small amount of sound absorption:
    • A. 

      White Room

    • B. 

      Black Room

    • C. 

      Live Room

    • D. 

      Dead Room

  • 25. 
    A small opening in a barrier that allows air-borne sound to pass through it:
    • A. 

      Window

    • B. 

      Leak

    • C. 

      Peak

    • D. 

      Isolation

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