Steel is used for reinforcement because it ___

Steel is used for reinforcement because it ___
 
  a. will not corrode
  b. has nearly the same temperature expansion and contraction rate as concrete
  c. has a lower temperature expansion and contraction rate than concrete
  d. is inexpensive

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[Ques. 2] For a long-run gable roof, it is recommended that you start in the center rather than at one end or the other
  because _____.
 
  a. this provides a slight slope from the center to help drain excess water from the roof
  b. there is less chance of misalignment in both directions
  c. composition shingles must be overlapped from side to side, starting from a center shingle
  d. you cannot accurately measure the space between courses on the ends of the roof

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[Ques. 3] The quantities of flashing and starter strips needed for a roofing project are calculated in _____.
 
  a. linear feet and inches
  b. cubic feet and inches
  c. square feet and inches
  d. metric equivalents

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[Ques. 4] The normal amount that is added to a roof estimate for hips, valleys, and waste is _____.
 
  a. 5 percent
  b. 12.5 percent
  c. 10 percent
  d. 18 percent

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[Ques. 5] After calculating the square footage of the building's roof and adding an allowance for hips, valleys, and
  waste, the result is converted to the amount of material needed, expressed in _____.
 
  a. blocks
  b. squares
  c. pallets
  d. pieces