What is described as acoustical design?

• Planning, shaping, finishing, and furnishing of an enclosed space to establish an acoustic environment.
• Make indoor spaces functional, safe, and beautiful by determining space requirements and selecting essential elements.
• Art and technique of designing and building a spaces intended primarily for the performance of drama and its allied arts by live performers who are physically present in front of a live audience.
• Art and science of enhancing the interior of a building to achieve a healthier and more aesthetically pleasing environment for the people using the space.

What is definition of sound?

• Sensation that is stimulated in ears by radiant energy transmitted as pressure waves.
• Sensation that is stimulated in ears by micro waves transmitted as invisible waves.
• Sensation that is part of the electromagnetic spectrum with large infrared waves and short radio waves.
• Sensation of sounds caused by the reflection of sound waves from a surface into another

What is definition of echo?

• When repetitions of a sound are produced by reflection of sound waves.
• When sound is absorbed, the sound energy flows through the material as heat.
• When waves of unwanted sound traveled through the space.
• When sound traveled through another form of material

What is defined by noise?

• Unwanted sound that is subjected to judgment of a person.
• When repetitions of a sound are produced by reflection of sound waves.
• When waves of unwanted sound traveled through the space.
• When sound traveled through another form of material

Which of the following shows way to block noise from entering a space in a building?

• By using mechanical, service, and utility areas as sound buffers.
• By using subwoofer to cancel out upcoming noises into the space.
• By using mechanical sound resistor to block the sounds from entering.
• By using an open air space to allow gradual slow of sound transmission.

Where should a space with higher noise level should be placed in a building?

• Near noisier side of the building.
• Near quieter side of the building.
• Near religious prayer's area.
• Near meditation area.

Which building configuration from below can create an echo chamber, where noise bounces from one wall to another?

• U-shaped building.
• S-shaped building.
• L-shaped building.
• Radial shaped building.
• Square shaped building.

Select ALL of the following ways to reduce noise in a building.

• Proper selection and installation of mechanical equipment.
• Selecting appropriate construction materials and construction techniques.
• Implementing acoustic treatment of the space.
• Using glass material for wall treatment and noise buffer.

What is function of a duct silencers?

• Keep mechanical system noise out of inhabited spaces.
• Keep the duct protected in case of fire occurrence.
• To enhance the ambiance of the space and contribute to aesthetic feature.
• To create a sound enhancer to convert the noise into a pleasing sound.

How does an acoustic wall panel works in addressing noise problem in a space?

• By absorbing the sound.
• By enhancing the sound.
• By refracting the sound.
• By harnessing the sound.