Perm rating is a property that measures

A) how effectively the air diffuses through the material.
B) how effectively water vapor diffuses through the material.
C) how effectively water vapor leaks through the material.
D) A and B.
E) A and C.


B) how effectively water vapor diffuses through the material.

Trades & Technology

You might also like to view...

Bermudagrass has both hybrid and ____________________ types

Fill in the blank(s) with correct word

Trades & Technology

Two proposed circular landscaped sections of a park are shown. A fence is to be constructed between points A and B.  In laying out the plot, a drafter is required to compute ?x.  What is the value of ?x in the diagram shown below to the nearest hundredth degree?

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

Trades & Technology

The type of shop that is most likely to have access to the latest manufacturer bulletins and technical information is _________

A) New truck dealership B) New car dealership C) Large fleet D) All of the above E) None of the above

Trades & Technology

List some of the optional components that can be found on the high side of a refrigeration system

What will be an ideal response?

Trades & Technology