Bu - Acoustics (Annayazu)
.
- 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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