The unit of measurement for the porosity of fabric duct is _____.

a. cfm/ft2 of surface area
b. cfh/ft2 of surface area
c. cfm/lineal foot of duct material
d. cfh/lineal foot of duct material


a. cfm/ft2 of surface area

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A rectangle is 10” high by 14” long. Calculate the perimeter of the rectangle, in feet.

What will be an ideal response?

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The first step in the order of operations is to complete all operations within ______________________.

Fill in the blank(s) with the appropriate word(s).

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The relationship of CFM and FPM can be summarized as:

A) FPM = CFM. B) CFM = FPM × area. C) FPM = CFM × area. D) CFM = FPM/area.

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A quick stop is always safer than an evasive turn when there is room to make a quick stop because

A. it is unlikely to cause a jackknife or a rollover B. there is no risk of a collision with a vehicle you did not see C. it will cause less possible damage to your rig or any other vehicle D. all of the above

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