A chalk line held tight and snapped will make a very straight ...

[penza]

A chalk line held tight and snapped will make a very straight line from end to end. When trying to set a chalk line longer than ________ feet, it is very difficult to pull the chalk line tight enough.
 
  A) 25 B) 10 C) 15 D) 20

Question 2

Which one of the following is not listed in the text as a typical building component that separates the indoor environment from the outdoor environment?
 
  A) Air barrier B) Vapor retarder C) Thermal envelope D) Thermal barrier

[succesfull]

Answer to Question 1

D

Answer to Question 2

C

[penza]

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