Why should a MERV rating always state the air velocity through the filter?

What will be an ideal response?


Because the filter efficiency decreases as the velocity increases

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La chapa que cubre el aislamiento de la caldera se llama _____.

a. revestimiento b. conducto c. cubierta d. cubierta de metal

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Passerines are the largest group and include the _____

a. cockatoos b. hookbills c. parrots d. song birds

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Many of the methods used to resist earthquake damage will not prevent damage from strong winds.

Answer the following statement true (T) or false (F)

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For the following systems, determine whether the system described is best modeled as an isolated, closed, or open system:

(a) an inflated tire (b) a lawn sprinkler actively in use (c) a cup filled with liquid water (d) an engine’s radiator (e) a rock formation 200 m below the surface

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