In Addition to Being a Barrier to the Passage of Air

question 24

Multiple Choice

In addition to being a barrier to the passage of air, an air barrier must also function as a barrier to the passage of

• A)subsoil water.
• B)both noise and water vapor.
• C)water vapor.
• D)noise.
• E)rainwater.

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Definitions:

Wave's Pressure

The force exerted by a wave, such as a sound wave or ocean wave, on any surface it encounters.

Frequency

The number of occurrences of a repeating event per unit of time, often measured in Hertz (Hz).

Pure Tones

Sounds that have a sinusoidal waveform and contain only one frequency, often used in hearing tests and research.

Nature

Refers to the phenomena of the physical world collectively, including plants, animals, the landscape, and other features and products of the earth, as opposed to humans or human creations.