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Author Question: Concrete normally attains its design strength in about ___ a. 14 days b. 21 days c. 28 days d. ... (Read 24 times)

Anajune7

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Concrete normally attains its design strength in about ___
 
  a. 14 days
  b. 21 days
  c. 28 days
  d. 30 days

Question 2

The distance between the exposed edges of overlapping shingles is called the _____.
 
  a. width
  b. exposure
  c. top lap
  d. head lap



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Gabe

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Answer to Question 1

c

Answer to Question 2

b





 

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