What specifications require the use of specific products identified by brand name, model number, ...

What specifications require the use of specific products identified by brand name, model number, manufacturer's name, and other unique characteristics?
 
  a. technical c. performance
  b. proprietary d. titled

Question 2

What advantages are offered by GPS over more traditional means of obtaining site data?
 
  What will be an ideal response?

Question 3

In the United States, agricultural exports exceed ____________________.
 
  Fill in the blank(s) with correct word

Question 4

Which specifications permit substitutions after approval by the designer or owner?
 
  a. design c. technical
  b. closed d. open